Digital safety control system for power substation, leakage current, and stray current

Abstract

The present invention is a system for monitoring and controlling a power substation included in an electric path from a power supply side to a plurality of loads. The system prevents the occurrence of, for example, an electric accident leading to a fire or the like by monitoring and controlling a transformer for step-down power distribution, i.e. a high-voltage transformer, installed in a power substation, and electric equipment such as a switchboard and a distribution board included in the electric path of power after step-down by the high-voltage transformer in the power substation. The system constantly monitors the temperature of the high-voltage transformer and monitors the value of an instantaneous current flowing through an electric path in the electric equipment such as a switchboard or distribution board included in the electric path of power after step-down by the high-voltage transformer, and cuts off the supply of power to loads when the temperature of the high-voltage transformer exceeds a prescribed value or when the value of the instantaneous current flowing through the electric path in the electric equipment exceeds a prescribed value.

Description

Digital safety control system for power receiving and transforming equipment, leakage current, and stray current.

[0001] This invention relates to a system for monitoring and controlling substations deployed in a circuit leading from a power supply to multiple loads, and for monitoring and controlling step-down distribution transformers, i.e., high-voltage transformers, deployed in the substations, and electrical equipment deployed in the circuit after the voltage has been stepped down by the high-voltage transformers in the substations, thereby preventing electrical accidents that could lead to fires, preventing accidents that could damage various power and electrical equipment and devices, which constitute the multiple loads, and further, preventing electrical accidents caused by short circuits, sparks, tracking, etc., in the low-voltage distribution boards, switchboards, control panels, and main lines, wiring, terminal electrical equipment, terminal load equipment, etc. of the substations.

[0002] The applicant has already implemented a digital electric safety control system (Patent Document 1), which it has named "Descon," which prevents electrical accidents that could lead to fire when a power-side circuit from the power source and a load-side circuit leading to a load that operates using a power supply, such as lighting equipment, air conditioning equipment, refrigeration equipment, and production equipment, are electrically connected via power devices such as power receiving and transforming equipment, switchboards, distribution boards, lighting boards, power panels, control panels, and junction boxes equipped with electrical devices such as main circuit breakers and earth leakage circuit breakers.

[0003] The applicant has already implemented a digital electric safety control system (Patent Document 1), which it has named "Descon," which prevents electrical accidents that could lead to fire when a power-side circuit from the power source and a load-side circuit leading to a load that operates by receiving power, such as lighting equipment, air conditioning equipment, refrigeration equipment, and production equipment, are electrically connected via power devices such as power receiving and transforming equipment, switchboards, distribution boards, lighting boards, power panels, control panels, and junction boxes equipped with electrical devices such as main breakers and earth leakage breakers.

[0004] The applicant has proposed a "digital electric safety control system" (Patent Document 2) that prevents electrical accidents leading to fires and other incidents in power devices such as distribution boards, switchboards, lighting boards, power distribution boards, control boards, and junction boxes, where power supply-side circuits from the power source and load-side circuits leading to the load are electrically connected via electrical equipment housed within the enclosure, and further prevents accidents that cause damage to various power and electrical equipment and devices to which the load-side circuits are connected.

[0005] The applicant has proposed a system called the "Death Control Operation Safety System" (Patent Document 3) that enables automatic ON / OFF switching of multiple loads to which load-side circuits are connected, automatically reads the power consumption of the loads and automatically calculates the power consumption, thereby saving labor, and further prevents electrical accidents that could lead to fire by detecting loose bolts in bolt-screw tightening connections in power equipment, insufficient insertion of outlets, and leakage current due to debris adhering to bolt-screw tightening connections, etc.

[0006] Patent No. 6732278 Patent No. 6836234 Patent No. 6991636

[0007] As the economy and industry expand globally, information technology evolves in real time, becoming borderless and human interaction increases. Along with PCs, tablets, and smartphones, the scale of information expands, and logistics in Japan and globally increase in both quantity and quality. For example, the scale and quality of logistics centers in buildings and facilities have grown dramatically. Furthermore, with the advent of information technology, cloud computing, data centers, material handling facilities, semiconductor factories, etc., as well as inbound tourism, event halls, hotels, terminal buildings, skyscrapers, etc., people's activities and labor become more concentrated as they operate 24 hours a day, robots provide convenience, and outdoor facilities offer various functionalities. In terms of lifestyle, the composition of the population is changing due to aging, declining birth rates, and single-person households. As a result of the rise of high-rise apartment buildings, the number and quantity of items and products that utilize electricity have increased dramatically, 365 days a year, 24 hours a day, leading to increased convenience.

[0008] On the other hand, the number of various electrical accidents is proportionally high. For example, the amount of electricity consumed by buildings and other facilities has increased dramatically and expanded, and there is no time when the power is shut down 24 hours a day. In particular, the high-voltage transformers for lighting and power in the power receiving and transforming equipment and the low-voltage distribution boards for lighting and power in the system, the distribution boards for the main lines and the system, the main lines and electrical equipment, machinery and equipment, terminal load connections, etc., are all affected.

[0009] Transformers that convert high-voltage electricity supplied by major power companies to low voltage are sometimes installed on the second or third basement floor in skyscrapers and special facilities, for example. However, in logistics centers, factories, offices, hotels, terminal buildings, apartment complexes, and commercial facilities, due to recent linear rainbands and floods, regional low-lying areas, and national safety policies regarding electrical equipment, major equipment such as the aforementioned high-voltage transformers for lighting and power, and low-voltage distribution panels for lighting and power are often installed outdoors, with foundations constructed at a safe height on the roof or ground floor.

[0010] Furthermore, due to the global rise in ambient temperatures and sea surface temperatures, and the resulting increase in humidity, the indirect load heat, such as the ambient temperature and enthalpy coefficient of humid heat in buildings located in the basement, and the load heat on power receiving and transforming equipment installed on the rooftop or in the foundation of the ground floor, such as lighting and power transformers, increases proportionally with the ambient temperature, even if the cubicle or the building interior is equipped with ventilation and cooling systems. This increases the temperature of the lighting and power transformers, and it is believed that there is a safety risk if the temperature reaches or exceeds the maximum allowable temperature for insulation materials of types A to H.

[0011] As mentioned above, due to the broadening and diversification of the economy and social behavior, the amount of electricity used in low-voltage lighting and power distribution panels is increasing. When the distribution panel reaches or exceeds, for example, its maximum current value, alarm current value, or approximate load factor, the safety risks to the distribution panel increase. Furthermore, if the amount of electricity supplying power to the transformer increases proportionally, the electrical resistance increases proportionally, and the transformer may reach or exceed its approximate maximum allowable temperature. Conventionally, measures have been taken to the extent of installing temperature sensors or thermostats on the transformer and sending emails if there is an abnormality, but these are merely ways of dealing with the rise in transformer temperature, and it is believed that a fundamental solution is needed in Japan and around the world.

[0012] This invention aims to provide a system for monitoring and controlling substations deployed in electrical circuits leading from the power supply side to multiple loads, and for monitoring and controlling step-down distribution transformers, i.e., high-voltage transformers, deployed in the substations, as well as electrical equipment deployed in the circuits after the voltage has been stepped down by the high-voltage transformers in the substations, thereby preventing electrical accidents that could lead to fires, preventing accidents that could damage various power and electrical equipment and devices, which constitute multiple loads, and further, preventing electrical accidents caused by short circuits, sparks, tracking, etc., in low-voltage distribution boards, switchboards, control panels, and main lines, wiring, terminal electrical equipment, terminal load equipment, etc. of the substations.

[0013] The present invention can be illustrated as follows: [1] A system for monitoring and controlling substation equipment installed in a circuit leading from a power supply side to multiple loads, wherein the system is installed for a step-down distribution transformer installed in the substation equipment, and the temperature of the transformer is a transformer detection temperature value T Ｔ A transformer-detected temperature value acquisition means for acquiring °C; an instantaneous current value acquisition means for acquiring an instantaneous AC current value or instantaneous DC current value which is the instantaneous current value i (amperes) flowing in the circuit of electrical equipment installed in the circuit after the voltage has been stepped down by the transformer in the substation equipment; and the transformer-detected temperature value TＴ The permissible temperature range is predetermined for the heat resistance class, which is classified according to the heat resistance characteristics of the insulating material used in the transformer, whose temperature in °C has been determined, and the transformer detected temperature value T Ｔ The system comprises: a transformer temperature determination means for comparing with °C; an instantaneous current value determination means for comparing the detected instantaneous current value i (amperes) with a preset allowable current value range for the circuit of the electrical equipment from which the instantaneous current value i (amperes) has been acquired by the instantaneous current value acquisition means; a notification information transmission means for outputting notification information to an administrator terminal used by the administrator managing the substation and / or a staff terminal used by the staff member responsible for managing the substation; a notification information level determination means for determining the level of the notification information output by the notification information transmission means based on the comparison result by the transformer temperature determination means and the comparison result by the instantaneous current value determination means; a power supply automatic shutoff capability determination means; a first power supply shutoff means; and a second power supply shutoff means, wherein the notification information level determination means determines that the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C has reached the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means has not reached the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C has not reached the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means has reached the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be the warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T ＴWhen the temperature reaches the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means reaches the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be alarm notification information, which is a different type of notification information from the warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C reaches an alarm temperature which is a temperature value higher than the warning temperature in the allowable temperature range, or when the comparison result by the instantaneous current value determination means reaches an alarm current value which is a current value higher than the warning current value in the allowable current value range, the level of the notification information is determined to be alarm notification information. The notification information transmission means outputs the notification information at the level determined by the notification information level determination means. When the notification information level determination means determines that the level of the notification information is alarm notification information, the power supply automatic shutoff determination means determines whether each of the plurality of loads to which current is supplied via the electrical equipment for which the instantaneous current value i (amperes) was acquired by the instantaneous current value acquisition means, which was the subject of comparison by the instantaneous current value determination means, is a load to which the power supply can be automatically shut off. The first power supply shutoff means automatically shuts off the power supply to the loads that the power supply automatic shutoff determination means has determined to be capable of automatic shutoff. The second power supply interruption means interrupts the power supply to the load device control device that controls the load, which has been determined by the power supply automatic interruption capability determination means to be unable to automatically interrupt the power supply, and then automatically interrupts the power supply to the load, in a power receiving and transforming equipment, leakage current, and stray current digital safety control system.

[0014] [2] The output of the notification information by the notification information transmission means includes the transformer detection temperature value T in the transformer that is subject to determination by the notification information level determination means. ＴA digital safety control system for power receiving and transforming equipment, leakage current, and stray current, comprising information relating to °C and information relating to the instantaneous current value i (amperes) in the electrical equipment that is subject to determination by the notification information level determination means [1].

[0015] [3] The instantaneous time is any microsecond time between 1 / 50,000 seconds (= 20 μsec) and 1 / 100,000 seconds (= 10 μsec) [1] or [2] a digital safety control system for power receiving and transforming equipment, leakage current, and stray current.

[0016] [4] A digital safety control system for power receiving and transforming equipment, leakage current, and stray current, comprising a tracking detection function that converts an analog instantaneous AC current value or an analog instantaneous DC current value detected by the instantaneous current value detection means into an analog voltage value, converts the analog voltage value into a digital voltage value, and converts the digital voltage value into a current value to detect abnormal currents. [3]

[0017] [5] The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to [3], further comprising a circuit breaker detection temperature value acquisition means for monitoring the temperature rise due to Joule heating of the terminal block of the circuit connection part of the circuit in the power receiving and transforming equipment, in which case the power receiving and transforming equipment, in which the power receiving and transforming equipment, is further comprising a circuit breaker detection temperature value acquisition means for monitoring the temperature rise due to Joule heating of the terminal block of the circuit connection part of the power receiving and transforming equipment, in which case the power receiving and transforming equipment, is further comprising a circuit breaker detection temperature value acquisition means for monitoring the temperature rise due to Joule heating of the terminal block of the circuit connection part of the power receiving and transforming equipment.

[0018] [6] The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to [5], further comprising a circuit breaker instantaneous current value detection means for monitoring the overcurrent of the circuit in the circuit breaker, thereby having an overcurrent monitoring function.

[0019] [7] The power receiving and transforming equipment, leakage current, and stray current digital safety control system of [5], which further includes a leakage current and stray current value detector ZCT (Zero-phase Current Transformer) for monitoring the leakage current of the electric circuit in the breaker, has a leakage current and stray current monitoring function.

[0020] [8] The power receiving and transforming equipment, leakage current, and stray current digital safety control system of [6], which further includes a leakage current and stray current value detector ZCT (Zero-phase Current Transformer) for monitoring the leakage current of the electric circuit in the breaker, has a leakage current and stray current monitoring function.

[0021] [9] Regarding the information on the detected transformer temperature value T Ｔ °C obtained by the transformer detected temperature value acquisition means, the information on the detected instantaneous DC current value detected by the instantaneous current value detection means, and the information on the leakage current and stray current values grasped by the leakage current and stray current value detector ZCT. The power receiving and transforming equipment, leakage current, and stray current digital safety control system of [7] or [8] further includes a database processing unit for database processing and recording one or more types of information.

[0022]

[10] The power receiving and transforming equipment, leakage current, and stray current digital safety control system of [9] further includes a database information output means for extracting the information corresponding to the information provision request from the database and sending it to the administrator terminal or the person-in-charge terminal that sent the information provision request when receiving an information provision request from the administrator terminal or the person-in-charge terminal.

[0023] A conceptual diagram illustrating the schematic configuration of one embodiment of the digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to the present invention. A diagram showing an example of the schematic configuration of a step-down distribution transformer in a power receiving and transforming equipment (sometimes referred to as a "cubicle") in one embodiment of the digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to the present invention. A diagram showing an example of the schematic configuration of electrical equipment deployed in the circuit after step-down by the step-down distribution transformer shown in Figure 2. A diagram showing an example of the configuration of a lighting distribution board, an additional lighting distribution board, a material handling control panel, and an additional material handling control panel supplied with power from the low-voltage lighting distribution board and low-voltage power distribution board shown in Figure 3. A schematic configuration diagram illustrating an example of control via a lighting distribution board and a material handling control power panel in a power receiving and transforming equipment according to one embodiment of the digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to the present invention, illustrating an example of a control form to the lighting distribution board and the material handling control power panel. Figure 6 shows an example of the configuration (capacity, thermal relay, circuit current, equipment capacity) of a main distribution board + expansion distribution board in a substation in a building with three lighting transformers (insulation type A) and four power transformers (insulation type A), according to one embodiment of the substation equipment, leakage current, and stray current digital safety control system of the present invention. Figure 6 shows an example of the schematic configuration of lighting loads and power loads supplied with power from the lighting distribution board and material handling control power board, respectively, in the configuration diagram shown. Figure 6 shows an example of the electrical system, voltage, and current of a residual current circuit breaker in a substation in a substation according to one embodiment of the substation equipment, leakage current, and stray current digital safety control system of the present invention. Figure 7 shows an example of the classification, rated sensitivity current, and main applications of a residual current circuit breaker in a substation in a substation according to one embodiment of the substation equipment, leakage current, and stray current digital safety control system of the present invention. This figure illustrates an example of the rated sensitivity current of a residual current circuit breaker in a power receiving and transforming equipment according to one embodiment of the digital safety control system for power receiving and transforming equipment, leakage current, and stray current of the present invention.Figures 11-12 show an example of the configuration of a power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention, relating to a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, a power receiving and transforming equipment, an example of the configuration of the power receiving and transforming equipment, a Figure 16 illustrates another example of the configuration (capacity, thermal relay, circuit current, equipment capacity) of a main distribution board + additional distribution board in a building's power receiving and transforming equipment, leakage current, and stray current digital safety control system according to one embodiment of the present invention. Figure 16 illustrates an example of a case in which the power supply to a load is automatically shut off in one embodiment of the present invention's power receiving and transforming equipment, leakage current, and stray current digital safety control system according to the present invention. Figure 16 illustrates an example of a configuration in which the power supply to a load is automatically shut off in a configuration shown in Figure 16. Figure 16 illustrates another example of a case in which the power supply to a load is automatically shut off in one embodiment of the present invention's power receiving and transforming equipment, leakage current, and stray current digital safety control system according to the present invention. This diagram illustrates an example of power supply to multiple loads via a lighting transformer, a power transformer, a low-voltage lighting distribution board, and a low-voltage power distribution board in one embodiment of the digital safety control system for power receiving and transforming equipment, leakage current, and stray current of the present invention, and illustrates the power supply state from the lighting transformer and power transformer to the low-voltage lighting distribution board and low-voltage power distribution board. Following the state shown in Figure 19, this diagram illustrates an example of the configuration of a low-voltage lighting distribution board and a low-voltage power distribution board in which power is supplied from the lighting transformer and power transformer.Figure 20 illustrates an example of a configuration of multiple loads to which power is supplied from the low-voltage lighting distribution board and low-voltage power distribution board shown. A diagram illustrating another example of the configuration (capacity, thermal relay, circuit current, equipment capacity) of a main distribution board + additional distribution board in a building's power receiving and transforming equipment with three lighting transformers (insulation type A) and four power transformers (insulation type A) in one embodiment of the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention. A configuration diagram illustrating another example of when automatic interruption of power supply to a load is performed in one embodiment of the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention. A diagram illustrating an example of multiple loads to which power supply is automatically interrupted in the configuration shown in Figure 23. A configuration diagram illustrating another example of when automatic interruption of power supply to a load is performed in one embodiment of the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention. A diagram showing the relationship between the heat resistance class of the insulating material of a high-voltage transformer in a power receiving and transforming equipment and temperature. A diagram illustrating the standards for 6kV oil-filled transformers for power distribution (JIS C 4303 1999) and oil-filled reactors (JIS 4902 2003). A diagram illustrating the standards for 6kV molded transformers for power distribution (JIS C 4306). A diagram showing another example of a power receiving and transforming equipment in a building according to one embodiment of the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current, with three lighting transformers (insulation type A) and four power transformers (insulation type A), circuit current, and equipment capacity. A diagram illustrating an example of a configuration in which a safety-allowable temperature type lighting transformer automatically shuts off when the detected current detected by the CT rises above the safety warning temperature of 102°C, with an alarm shutoff coefficient of 1.10 set in advance for the safety warning temperature of 102°C, resulting in an alarm shutoff temperature of (102 × 1.10) = 112.2°C or higher. This diagram illustrates another example of a configuration in which a safety-allowable temperature type light transformer (TR) automatically shuts off when the detected current detected by the CT rises above the safety warning temperature of 102°C, using a pre-set alarm shutoff coefficient of 1.10 for the safety warning temperature of 102°C, resulting in an alarm shutoff temperature of (102 × 1.10) = 112.2°C or higher.A diagram illustrating another example of a power receiving and transforming equipment in a building according to one embodiment of the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current, with three lighting transformers (insulation type A) and four power transformers (insulation type A), showing circuit current, equipment capacity, etc. A diagram illustrating another example of a configuration in which a safety-permissible temperature type lighting transformer automatically shuts off when the detected current detected by the CT rises above the safety warning temperature of 102°C, with a pre-set alarm shutoff coefficient of 1.10 for a safety warning temperature of 102°C, resulting in an alarm shutoff temperature of (102 × 1.10) = 112.2°C or higher. A diagram illustrating another example of a configuration in which a safety-permissible temperature type lighting transformer automatically shuts off when the detected current detected by the CT rises above the safety warning temperature of 105°C, with a pre-set alarm shutoff coefficient of 1.15 for a safety warning temperature of 105°C, resulting in an alarm shutoff temperature of (105 × 1.15) = 121°C or higher. This figure illustrates another example of a configuration in which a power transformer of the safety allowable temperature type automatically shuts off when the detected current detected by the CT rises above the safety warning temperature of 105°C, using a pre-set alarm shutoff coefficient of 1.10 for the safety warning temperature of 105°C, resulting in an alarm shutoff temperature of (105 × 1.10) = 115.5°C or higher. This figure shows an example of a configuration in the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention that automatically shuts off based on the voltage, TR capacity, thermal relay, circuit current, equipment capacity, etc. of the building's power receiving and transforming equipment (four power transformers (TR)), and the boiling point temperature of the distribution board, circuits, terminal electrical equipment, and load equipment of the system based on the detected temperature. This figure illustrates an example of an automatic shutoff configuration in the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention when the boiling point temperature of the power transformer (TR) is 290°C and the pre-set automatic shutoff coefficient is 0.75. Figure 38 illustrates an example of the configuration of the power transformer No. 1, thermal relay, circuit current, equipment capacity, etc., among the three lighting transformers (TRs) in the power transformer equipment of a building, as well as the detection temperature and tripping coefficient of the permanent distribution board, in the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current. Figure 38 illustrates an example of multiple loads in which power supply is automatically shut off with the configuration shown.This diagram illustrates an example of the configuration of the substation equipment, leakage current, and stray current digital safety control system of the present invention, including the substation equipment's cubicle, low-voltage lighting and power distribution board, lighting and power distribution board, etc., and the smoke and heat detectors of the fire alarm, network, etc., and the functions of the system, illustrating the general configuration from the substation equipment's cubicle to the low-voltage lighting and power distribution board. Following the configuration shown in Figure 40, this diagram illustrates an example of the configuration of the lighting and power distribution board, etc., which are continuous from the low-voltage lighting and power distribution board, and the smoke and heat detectors of the fire alarm, network, etc., and the functions of the system. This conceptual diagram illustrates an example of a configuration in the substation equipment, leakage current, and stray current digital safety control system of the present invention that automatically shuts off the power supply when it is determined that the power supply should be shut off. A conceptual diagram illustrating an example of a configuration in the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current, where, when a detection decision is made to shut off the power supply, the power supply to the equipment controlling the load receiving the power supply is shut off before shutting off the power supply to the load receiving the power supply. A diagram illustrating the general configuration of the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current, where information is exchanged over a dedicated line network rather than a public network such as the Internet.

[0024] The present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current is a system for monitoring and controlling power receiving and transforming equipment 2 deployed in an electrical circuit 6 leading from the power supply side to multiple loads 7 (Figure 1). In this specification and drawings, the digital safety control system for power receiving and transforming equipment, leakage current, and stray current of the present invention may be referred to as the "DESCON safety control system" or simply "DESCON".

[0025] A substation and power conversion equipment usually consists of a step-down transformer for power distribution and a plurality of electrical equipment installed in the circuit after the voltage is stepped down by the step-down transformer for power distribution. Examples of the plurality of electrical equipment installed in the circuit after the voltage is stepped down by the step-down transformer for power distribution in the substation and power conversion equipment include, for example, distribution boards, distribution panels, lighting panels, power panels, control panels, remote control device panels, etc., extension cords between devices and instruments or junction boxes for branched wiring connections of wiring, main circuit breakers, leakage circuit breakers, and circuit breakers of different types from main circuit breakers and leakage circuit breakers, such as magnetic switches, power relays, solid-state relays, etc.

[0026] In FIG. 1, for simplicity of explanation, only the step-down transformer 21 for power distribution and the distribution panel 22 and breaker 23, which are electrical equipment installed in the circuit after the voltage is stepped down by the transformer 21, are shown in the substation and power conversion equipment 2.

[0027] Examples of the plurality of loads 7 installed at the end towards which the circuit 6 from the power supply side is directed include, for example, prime movers, elevators, air conditioning equipment, ventilation equipment, lighting equipment, refrigerated and frozen cases, refrigerators and freezers, measuring instruments, computer equipment, surveillance cameras, medical equipment, communication devices, etc., which are power and electrical devices and equipment that operate by receiving power supply, including power and electrical devices and equipment installed and used inside and outside buildings, etc., power and electrical devices, communication devices, and equipment installed and used in vehicles and means of transportation such as trains, cars, airplanes, ships, etc., and outlets to which these are connected.

[0028] In addition, among the above-mentioned loads such as measuring instruments, computer equipment, surveillance cameras, medical equipment, etc., for example, it is not possible to automatically cut off the power supply, and when the power supply to the load device control device that controls these loads is cut off and then the power supply to these loads is cut off, the load device control device, etc. is included.

[0029] These plurality of loads 7 are connected to the leading end side of the circuit 6 in which the substation and power conversion equipment 2 to be monitored as described above is interposed.

[0030] The heat resistance characteristics of the transformer in the power receiving and transforming equipment 2 are as follows, for example.

[0031] In this specification and the drawings, "transformer" may be represented as "TR", "power receiving and transforming equipment" may be represented as "cubicle", and "alternating current instantaneous current value detector" (Current Transformer) may be represented as "CT".

[0032] The transformer 21 is classified into the following heat resistance classes according to the heat resistance characteristics of the insulating materials used.

[0033] Insulating materials include insulating oil, SF ６ gas, kraft paper, pressboard, mica, glass fiber, epoxy resin, silicone resin, alkyd resin and other materials are used, and the maximum allowable temperature of insulating oil to alkyd resin is determined. Also, the heat resistance classes applicable to oil-immersed transformers using the above various insulating materials are A, and those applicable to molded transformers are B, F, and H.

[0034] When the transformer is used in the standard operating state, it is designed so that the temperature rise limit of the winding (the limit of the difference between the winding temperature and the ambient temperature) is not exceeded and each part of the insulator does not exceed the maximum allowable temperature of the heat resistance class. However, when the ambient temperature exceeds the maximum value of 40°C, or there is a risk of exceeding the maximum allowable temperature due to excessive overload operation, etc.

[0035] Since the life of the transformer is most affected by the highest point temperature, continuous operation for a long time exceeding the maximum allowable temperature will lead to shortening of the expected life of the transformer, which is 30 years. The environment, composition, etc. of the transformer are, for example, used in places with an altitude of 1,000 m or less, ambient temperature - indoor use: -5°C to +40°C, outdoor use: -20°C to +40°C, and the daily average temperature does not exceed 35°C and the annual average temperature does not exceed 20°C. Also, the voltage waveform of the circuit: the voltage waveform of the circuit to which the transformer is connected is approximately a sine wave, and the voltage balance of the three-phase circuit: the three-phase circuit to which the three-phase transformer is connected is approximately balanced.

[0036] The reference winding temperature is defined as the temperature used as a reference for calculating characteristic values such as load loss and short-circuit impedance because the resistance value changes depending on the winding temperature.

[0037] The heat resistance class and temperature of the insulating material for transformers (TR) are specified as 140K in the Japan Electrical Manufacturers' Association standard number: JEM 1310:2001, which outlines the temperature rise limit and reference winding temperature (heat resistance class H) for dry-type transformers.

[0038] The reference winding temperature is defined as the temperature at which the resistance value changes with winding temperature, and is used as a reference temperature for calculating characteristics such as load loss and short-circuit impedance.

[0039] The boiling point of the insulating oil in 6kV oil-filled transformers for power distribution (JIS C 4303 1999), oil-filled reactors (JIS 4902 2003), 6kV molded transformers for power distribution (JIS C 4306), and transistors is said to be around 290°C to 340°C.

[0040] The present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current, namely the DESCON safety control system, is comprised of a computer system 1, which consists of a server computer and the like, and is connected to these via a network 5a. The system includes, as described below, transformer detection temperature acquisition means 24, distribution board instantaneous current value detection means 25, breaker detection temperature acquisition means 26, breaker instantaneous current value detection means 27, leakage current and stray current value detector ZCT 28, etc., which are deployed in the power receiving and transforming equipment 2 that is the target of monitoring and control (Figure 1).

[0041] Although not shown in the figures, this computer system 1 can be configured as a computer comprising a CPU that controls the various functions of the system in this embodiment to be realized according to an operating system and predetermined computer programs that have been installed or downloaded, a ROM as a memory unit that stores the operating system and various computer programs and stores data necessary for the CPU to execute each control process, RAM and hard disk which store data necessary for the CPU to execute the process and are also used as a work area where the information is rewritten as appropriate by the CPU, and information input / output units such as a communication interface, all connected by the necessary bus lines.

[0042] In Figure 1, a computer system 1, which includes a memory unit (not shown), is equipped with a transformer temperature determination means 11, an instantaneous current value determination means 12, a notification information transmission means 13, a notification information level determination means 14, a power supply automatic shutoff capability determination means 15, a first power supply shutoff means 16, a second power supply shutoff means 17, a database processing unit 18, and a database information output means 19.

[0043] The following processing operations, such as the transformer temperature comparison means 11, instantaneous current value determination means 12, notification information transmission means 13, notification information level determination means 14, power supply automatic shutoff capability determination means 15, first power supply shutoff means 16, second power supply shutoff means 17, database processing unit 18, database information output means 19, and other processing units not shown, as well as the following tracking detection function, Joule heat detection function, overcurrent monitoring function, and leakage current monitoring function, are performed by such a computer system.

[0044] Furthermore, in the embodiment shown in Figure 1, the transformer 21, distribution board 22, and circuit breaker 23 of the power receiving and transforming equipment 2 are equipped with a transformer detection temperature value acquisition means 24, a distribution board instantaneous current value acquisition means 25, a circuit breaker detection temperature value acquisition means 26, a circuit breaker instantaneous current value acquisition means 27, and a leakage current / stray current value detector (ZCT) 28, respectively.

[0045] In the embodiment shown in Figure 1, the distribution board instantaneous current value acquisition means 25 is an instantaneous current value acquisition means that acquires instantaneous AC current value or instantaneous DC current value, which is the instantaneous current value flowing in the circuit of electrical equipment deployed in the circuit after it has been stepped down by the transformer 21 in the substation equipment 2 in the DESCON safety control system of the present invention.

[0046] Although not shown in the diagram, the electrical equipment installed in the circuit after the voltage has been stepped down by the transformer 21 in the power receiving and transforming equipment 2 is a switchboard, and a switchboard instantaneous current value acquisition means is installed for the switchboard to acquire an instantaneous AC current value or instantaneous DC current value, which is the instantaneous current value flowing in the circuit of the switchboard at an instantaneous time.

[0047] Furthermore, in the embodiment shown in Figure 1, the breaker instantaneous current value acquisition means 27 corresponds to an example of the circuit breaker instantaneous current value detection means in the present invention.

[0048] The distribution board instantaneous current value detection means 25 is connected to the circuit in the distribution board 22 and detects the instantaneous current value, which is the instantaneous AC current value or instantaneous DC current value, that flows through the circuit in the distribution board 22 in an instant.

[0049] As the distribution board instantaneous current value detection means 25, a current sensor using a current transformer called a CT (Current Transformer) or a DC instantaneous current measuring instrument using a Hall element can be employed.

[0050] In Figure 1, the transformer detection temperature value acquisition means 24, the distribution board instantaneous current value acquisition means 25, the circuit breaker detection temperature value acquisition means 26, the circuit breaker instantaneous current value acquisition means 27, the leakage current / stray current value detector (ZCT) 28, and the computer system 1 are connected to each other via wired and wireless networks 5a such as the Internet and dedicated lines, enabling them to exchange information with one another.

[0051] Furthermore, the computer system 1 is connected to multiple administrator terminals 3a, 3b, ... and multiple staff terminals 4a, 4b, 4c, ... via wired and wireless networks 5b such as the Internet and dedicated lines, enabling them to exchange information with each other.

[0052] The administrator terminals 3a, 3b, ... described above are equipped with image information display means such as a monitor and can be configured as personal computers or the like on which the system operation software of the present invention is installed. Furthermore, the staff terminals 4a, 4b, 4c, ... described above can be configured as mobile terminals such as smartphones on which the system operation application of the present invention is downloaded.

[0053] Administrator terminals 3a, 3b, ... and staff terminals 4a, 4b, 4c, ... are connected to a computer system 1, which consists of a server computer and other components that constitute the power receiving and transforming equipment, leakage current, and stray current digital safety control system of the present invention, i.e., the DESCON safety control system, via a communication network 4b such as the Internet or a dedicated line, enabling mutual information exchange.

[0054] The transformer detection temperature value acquisition means 24 described above is installed relative to the transformer 21, and the transformer detection temperature value T is the temperature of the transformer 21. Ｔ Perform a process to determine the temperature in degrees Celsius.

[0055] The transformer-detected temperature value T is constantly monitored by a transformer-detected temperature value acquisition means 24 consisting of a temperature sensor, and output as digital information. Ｔ The °C information is transmitted via a network 5a such as the Internet or a dedicated line to a computer system 1 that constitutes the power receiving and transforming equipment, leakage current, and stray current digital safety control system (DESCON safety control system) of the present invention. The transmitted transformer detection temperature value T Ｔ The °C information is the temperature value T detected by the transformer. Ｔ The °C temperature is associated with information identifying the transformer from which it was acquired and stored in the memory unit (not shown) of computer system 1 along with information regarding the acquisition time. The information regarding the acquisition time is recorded in units of seconds, such as the year, month, day, hour, minute, and second.

[0056] The instantaneous current value i (amperes) (instantaneous AC current value or instantaneous DC current value), which is constantly monitored by the distribution board instantaneous current value acquisition means 25 and output as digital information, is delivered via a network 5a such as the Internet or a dedicated line to the computer system 1 that constitutes the power receiving and transforming equipment, leakage current, and stray current digital safety control system (DESCON safety control system) of the present invention. The delivered instantaneous current value i (amperes) is associated with information identifying the electrical equipment from which the instantaneous current value i (amperes) was acquired, and is stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time. The information regarding the acquisition time is recorded in units of seconds, for example, as the year, month, day, hour, minute, and second.

[0057] The instantaneous time can be arbitrarily set between 1 / 50,000 seconds (= 20 μsec) and 1 / 100,000 seconds (= 10 μsec). Within this range, the microsecond can also be set in proportion to the performance of the computer (PC) that constitutes the DESCON safety control system.

[0058] Setting the instantaneous time unit for instantaneous detection to a microsecond between 1 / 50,000 seconds (= 20 μsec) and 1 / 100,000 seconds (= 10 μsec) is advantageous for detecting the risk of tracking phenomena earlier and taking necessary measures such as shutting off the power before tracking phenomena occur.

[0059] The transformer temperature determination means 11 described above determines the transformer temperature value T Ｔ The permissible temperature range is predetermined for the heat resistance class, which is classified according to the heat resistance characteristics of the insulating material used in the transformer 21 whose temperature in °C has been determined, and the transformer detected temperature value T Ｔ The process involves comparing it with °C.

[0060] The information regarding the aforementioned pre-set permissible temperature ranges, which will be used for comparison, is stored in a memory unit (not shown) of the computer system 1.

[0061] The instantaneous current value determination means 12 described above performs a process of comparing the detected instantaneous current value with a preset allowable current value range for the circuit of the distribution board 22, which is an electrical piece of equipment whose instantaneous current value is acquired by the distribution board instantaneous current value acquisition means 25. In this case, the information regarding the preset allowable current value range for the circuit of the distribution board 22, which is the electrical piece of equipment being monitored and used for comparison, is stored in a memory unit (not shown) of the computer system 1.

[0062] The notification information transmission means 13 described above performs the process of outputting notification information to administrator terminals 3a, 3b, ... used by the administrator managing the power receiving and transforming equipment 2, and / or staff terminals 4a, 4b, 4c, ... used by the staff members responsible for managing the power receiving and transforming equipment 2.

[0063] The notification information level determination means 14 described above performs a process to determine the level of the notification information output by the notification information transmission means 13 based on the comparison result by the transformer temperature determination means 11 and the comparison result by the instantaneous current value determination means 12.

[0064] The determination process performed by the notification information level determination means 14 includes the following: <First determination process> The comparison result by the transformer temperature determination means 11 is the transformer detected temperature value T Ｔ When the temperature in °C reaches the warning-issuing temperature within the aforementioned allowable temperature range, and the comparison result by the instantaneous current value determination means 12 does not reach the warning-issuing current value within the aforementioned allowable current value range, the system determines that the level of the notification information described above should be classified as warning information.

[0065] The notification information transmission means 13 outputs the notification information at the level determined by the notification information level determination means 14. That is, based on the determination process described above, the notification information transmission means 13 performs the process of outputting the above-described warning information as notification information to administrator terminals 3a, 3b, ... and / or staff terminals 4a, 4b, 4c, ...

[0066] Furthermore, when the notification information transmission means 13 outputs the warning information in this manner, the notification information transmission means 13 determines the transformer detection temperature value T in the transformer 21 that is subject to the above-mentioned determination by the notification information level determination means 14. Ｔ An embodiment can be provided in which information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment (in the above case, the distribution board 22) that is the subject of the above-mentioned determination by the notification information level determination means 14 are attached to the warning information that is output.

[0067] As described above, the transformer detection temperature value T is delivered to the computer system 1 that constitutes the power receiving and transforming equipment, leakage current, and stray current digital safety control system (DESCON safety control system) of the present invention. Ｔ The °C information is the temperature value T detected by the transformer. Ｔ The temperature in °C is associated with information identifying the transformer from which it was acquired and stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time. Similarly, the instantaneous current value i (amperes) received is associated with information identifying the electrical equipment from which the instantaneous current value i (amperes) was acquired and stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time.

[0068] Using this information, the output of notification information by the notification information transmission means 13 includes the transformer detection temperature value T in the transformer 21 that is subject to determination by the notification information level determination means 14. Ｔ Information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment (in the above case, the distribution board 22) that was the subject of determination by the notification information level determination means 14 will be added.

[0069] <Second Determination Process> The comparison result by the transformer temperature determination means 11 is the transformer detected temperature value T described above. Ｔ When °C has not reached the warning-issuing temperature within the above-mentioned allowable temperature range, and the comparison result by the instantaneous current value determination means 12 has reached the warning-issuing current value within the above-mentioned allowable current value range, the level of the notification information described above is determined to be the warning information described above.

[0070] The notification information transmission means 13 outputs the notification information at the level determined by the notification information level determination means 14. That is, based on the determination process described above, the notification information transmission means 13 performs the process of outputting the above-described warning information as notification information to administrator terminals 3a, 3b, ... and / or staff terminals 4a, 4b, 4c, ...

[0071] In this case as well, as described above, the output of the notification information (warning information) by the notification information transmission means 13 includes the transformer detection temperature value T in the transformer 21 that is subject to determination by the notification information level determination means 14. Ｔ An embodiment may be provided in which information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment (in the above case, the distribution board 22) that is subject to determination by the notification information level determination means 14 are also provided.

[0072] <Third determination process> The comparison result by the transformer temperature determination means 11 is the transformer detected temperature value T described above. Ｔ When the temperature reaches the warning-issuing temperature within the aforementioned allowable temperature range, and the comparison result by the instantaneous current value determination means 12 also reaches the warning-issuing current value within the aforementioned allowable current value range, the level of the notification information described above is determined to be alarm notification information, which is a different type of notification information from the aforementioned warning information.

[0073] The notification information transmission means 13 outputs the notification information at the level determined by the notification information level determination means 14. That is, based on the determination process described above, the notification information transmission means 13 performs the process of outputting the above-described alarm notification information as notification information to the administrator terminals 3a, 3b, ... and / or the person in charge terminals 4a, 4b, 4c, ...

[0074] In this case as well, as described above, the output of the notification information (alarm notification information) from the notification information transmission means 13 includes the transformer detection temperature value T in the transformer 21 that is subject to determination by the notification information level determination means 14. ＴAn embodiment may be provided in which information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment (in the above case, the distribution board 22) that is subject to determination by the notification information level determination means 14 are also provided.

[0075] <Fourth determination process> The comparison result by the transformer temperature determination means 11 is the transformer detected temperature value T described above. Ｔ When °C reaches an alarm activation temperature which is a temperature value higher than the warning activation temperature within the above-mentioned allowable temperature range, or when the comparison result by the instantaneous current value determination means 12 reaches an alarm activation current value which is a current value higher than the warning activation current value within the above-mentioned allowable current value range, the level of the notification information described above is determined to be the alarm notification information described above.

[0076] The notification information transmission means 13 outputs the notification information at the level determined by the notification information level determination means 14. That is, based on the determination process described above, the notification information transmission means 13 performs the process of outputting the above-described alarm notification information as notification information to the administrator terminals 3a, 3b, ... and / or the person in charge terminals 4a, 4b, 4c, ...

[0077] In this case as well, as described above, the output of the notification information (alarm notification information) from the notification information transmission means 13 includes the transformer detection temperature value T in the transformer 21 that is subject to determination by the notification information level determination means 14. Ｔ An embodiment may be provided in which information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment (in the above case, the distribution board 22) that is subject to determination by the notification information level determination means 14 are also provided.

[0078] The above-mentioned permissible temperature range is arbitrarily set in advance for each heat resistance class (for example, Class A insulation, Class E insulation, Class B insulation, Class F insulation, Class H insulation) classified according to the heat resistance characteristics of the insulating material used in the transformer 21 being monitored, taking into consideration the maximum permissible temperature set for each class as is well known, in order to achieve the objective of the present invention.

[0079] For example, if the maximum allowable temperature of the monitored transformer 21 is 130°C and the maximum allowable current is 1718 A (amperes), the allowable temperature range can be arbitrarily set in advance to 120°C to 135°C, within a range that can achieve the objective of the present invention. Similarly, the warning temperature can be arbitrarily set in advance to 130°C and the alarm temperature to 135°C.

[0080] The above-mentioned allowable current range, which is set in advance for the circuit of the electrical equipment from which the instantaneous current value is acquired by the instantaneous current value acquisition means, can be, for example, a current range that is predetermined to correspond to the cable size of the circuit of the electrical equipment from which the instantaneous current value is acquired by the instantaneous current value acquisition means.

[0081] For example, the allowable current range, which is set in advance in accordance with the cable size of the circuit of the electrical equipment for which the instantaneous current value is acquired by the instantaneous current value acquisition means, can be set to 1.25 times or less the rated current set for the circuit of the said cable size, the warning current value, which is set arbitrarily in advance, can be set to 1.20 times or less the rated current set for the circuit of the cable size of the electrical equipment for which the instantaneous current value is acquired by the instantaneous current value acquisition means, the alarm current value, which is set arbitrarily in advance, can be set to 1.25 times or less the rated current set for the circuit of the cable size of the electrical equipment for which the instantaneous current value is acquired by the instantaneous current value acquisition means, and so on.

[0082] In this way, the digital safety control system for power receiving and transforming equipment, leakage current, and stray current of the present invention constantly monitors the temperature of the step-down transformer 21 in the power receiving and transforming equipment, and the instantaneous current values ​​of the circuits in electrical equipment such as switchboards and distribution boards that are located in the circuits after the voltage has been stepped down by the transformer 21 in the power receiving and transforming equipment.

[0083] Furthermore, if only one of the systems meets the predetermined warning information output conditions, warning information is output to the administrator and the person in charge. If either system meets the predetermined alarm information output conditions, which require a higher level of management and control than the aforementioned warning information output conditions, alarm information, which is a different type of warning information than the aforementioned warning information, is output to the administrator and the person in charge. If both systems meet the predetermined warning information output conditions described above, the aforementioned alarm information is output to the administrator and the person in charge.

[0084] In this way, the temperature of the step-down transformer 21 in the substation and the instantaneous current values ​​of the circuits in electrical equipment such as switchboards and distribution boards located in the circuits after the voltage has been stepped down by the transformer 21 in the substation are constantly monitored. When either or both simultaneously reach the above-mentioned warning information output conditions or alarm information output conditions, different types of warning information and alarm information are output to the administrator and person in charge, thereby preventing electrical accidents that could lead to fires, preventing accidents that could damage various power and electrical equipment and devices, which are multiple loads, and further preventing electrical accidents caused by short circuits, sparks, tracking, etc. in low-voltage switchboards, distribution boards, control panels, and main lines, wiring, terminal electrical equipment, terminal load equipment, etc. in the substation.

[0085] The power supply automatic shutoff capability determination means 15, as described above, determines whether each of the multiple loads 7 to which current is supplied via the electrical equipment (in the above case, the distribution board 22) from which the instantaneous current value i (amperes) was acquired by the instantaneous current value acquisition means (in the above case, the distribution board instantaneous current value acquisition means 25) is a load to which the power supply can be automatically shut off, when the notification information level determination means 14 determines that the level of the notification information is the alarm notification information.

[0086] The information used in this determination process, such as whether each of the multiple loads 7 is a load capable of automatic power supply shutoff, is stored in the memory unit (not shown) of the computer system 1.

[0087] Furthermore, the first power supply interruption means 16 performs a process to automatically interrupt the power supply to the load 7 that has been determined by the power supply automatic interruption capability determination means 15 to be capable of automatic power interruption.

[0088] For example, the processing unit of the computer system 1 sends predetermined signal information to the power receiving and transforming equipment 2 via the network 5a described above in order to automatically shut off the power supply to the load 7 that has been determined by the power supply automatic shutoff determination means 15 to be capable of automatic shutoff. This instructs the equipment such as the circuit breakers 23 that make up the power receiving and transforming equipment 2 to perform the automatic shutoff of the power supply described above.

[0089] Furthermore, the second power supply interruption means 17 interrupts the power supply to the load device control device that controls the load 7, which the power supply automatic interruption capability determination means 15 has determined is not capable of automatic interruption, and then proceeds to automatically interrupt the power supply to the load 7.

[0090] For example, the processing unit of the computer system 1 cuts off the power supply to the load device control device that controls the load 7, which has been determined by the power supply automatic cutoff capability determination means 15 to be unable to automatically cut off the power supply. Subsequently, predetermined signal information is sent to the power receiving and transforming equipment 2 via the network 5a described above to automatically cut off the power supply to the load. This instructs the equipment such as the breaker 23 that constitutes the power receiving and transforming equipment 2 to cut off the power supply to the load device control device, and subsequently to automatically cut off the power supply to the load.

[0091] The above-described digital safety control system for power receiving and transforming equipment, leakage current, and stray current can be made into a system equipped with a tracking detection function by converting the analog instantaneous AC current value or analog instantaneous DC current value detected by the distribution board instantaneous current value detection means 25 into an analog voltage value, converting the analog voltage value into a digital voltage value, and converting the digital voltage value into a current value to detect abnormal currents.

[0092] The process of detecting abnormal currents by converting the analog instantaneous AC current value or analog instantaneous DC current value detected by the distribution board instantaneous current value detection means 25 into an analog voltage value, converting the analog voltage value into a digital voltage value, and converting the digital voltage value into a current value can be executed by the processing unit of the computer system 1 based on the analog instantaneous current value (analog instantaneous AC current value or analog instantaneous DC current value) acquired by the computer system 1. Alternatively, a microcomputer can be attached to the distribution board instantaneous current value detection means 25, and the above process can be executed by the microcomputer.

[0093] When the electrical equipment from which the instantaneous current value is acquired by the instantaneous current value acquisition means described above is a circuit breaker 23, or when, in addition to the electrical equipment from which the instantaneous current value is acquired by the instantaneous current value acquisition means, a circuit breaker 23 is also installed in the circuit after it has been stepped down by the transformer 21 in the substation 2, the system can be further equipped with a circuit breaker detection temperature value acquisition means 26 that monitors the temperature rise due to Joule heating at the terminal block of the circuit connection part of the circuit breaker 23, thereby enabling a digital safety control system for substations, leakage current, and stray current with a Joule heating function.

[0094] In a configuration that includes a circuit breaker (breaker) 23, a breaker detection temperature value acquisition means 26 is provided with respect to the circuit breaker (breaker) 23 to constantly monitor the temperature of the terminal block at the connection point of the circuit in the circuit breaker (breaker) 23, thereby constantly monitoring the temperature of the terminal block at the connection point of the circuit in the circuit breaker (breaker) 23.

[0095] The temperature value information detected by the circuit breaker, which is constantly monitored by a circuit breaker detection temperature value acquisition means 26 consisting of a temperature sensor, is output as digital information and delivered via a network 5a such as the Internet or a dedicated line to a computer system 1 that constitutes the power receiving and transforming equipment, leakage current, and stray current digital safety control system (DESCON safety control system) of the present invention.

[0096] Since the temperature information of the terminal block at the connection point of the circuit breaker 23 is due to Joule heating, the power receiving and transforming equipment, leakage current, and stray current digital safety control system, consisting of the computer system 1, is configured to have a Joule heating detection function by monitoring the acquired temperature value information of the connection point terminal block.

[0097] Furthermore, a circuit breaker instantaneous current value detection means 27 for monitoring the overcurrent of the circuit in the circuit breaker 23 can be provided with the circuit breaker 23, thereby enabling a configuration in which the overcurrent of the circuit in the circuit breaker 23 is constantly monitored.

[0098] The overcurrent value information detected by the connection terminal block, which is constantly monitored by the breaker instantaneous current value detection means 27 and output as digital information, is delivered via a network 5a such as the Internet or a dedicated line to the computer system 1 that constitutes the power receiving and transforming equipment, leakage current, and stray current digital safety control system (DESCON safety control system) of the present invention.

[0099] This allows the present invention's digital safety control system for power receiving and transforming equipment, leakage current, and stray current to be configured to include an overcurrent monitoring function by monitoring the acquired overcurrent value information from the connection terminal block.

[0100] As the breaker instantaneous current value detection means 27, similar to the distribution board instantaneous current value detection means 25 described above, a current sensor using a current transformer called a CT (Current Transformer) or a DC instantaneous current measuring instrument using a Hall element can be employed.

[0101] Furthermore, the instantaneous time can be arbitrarily set between 1 / 50,000 seconds (= 20 μsec) and 1 / 100,000 seconds (= 10 μsec). Within this range, the microsecond can also be set in proportion to the performance of the computer (PC) that constitutes the DESCON safety control system.

[0102] Furthermore, a Zero-phase Current Transformer (ZCT) 28, which monitors the leakage current of the circuit in the circuit breaker 23, can be installed in relation to the circuit breaker 23, thereby enabling a configuration in which the leakage current and stray current of the circuit in the circuit breaker 23 are constantly monitored.

[0103] The leakage current and stray current values ​​are constantly monitored by the leakage current and stray current value detector 28, and the leakage current value information, which is output as digital information, is delivered via a network 5a such as the Internet or a dedicated line to the computer system 1 that constitutes the power receiving and transforming equipment leakage current and stray current digital safety control system (DESCON safety control system) of the present invention.

[0104] This allows the power receiving and transforming equipment, leakage current, and stray current digital safety control system to be configured to include a leakage current and stray current monitoring function by monitoring the acquired leakage current and stray current value information.

[0105] For example, leakage currents are recorded as warning leakage currents and alarm leakage currents, and stray currents are recorded as warning stray currents and alarm stray currents. These leakage currents, stray currents, etc., are stored separately, for example, in seconds, minutes, hours, days, weeks, 10 days, months, seasons (3 months, 6 months, year, etc.), and also separately for 1 year, 2 years, 3 years, ... 5 years, ... n years ago, etc. A means (for example, a database processing unit 18) for constructing a database (not shown) in the computer system 1 can be provided.

[0106] In other words, the above-mentioned transformer detection temperature value T obtained by the transformer detection temperature value acquisition means 24 Ｔ The computer system 1 is configured to include a database processing unit that stores one or more of the following information in a database: information regarding °C, information regarding the instantaneous DC current value detected by the distribution board instantaneous current value detection means 25, and information regarding the leakage current and stray current value obtained by the leakage current and stray current value detector ZCT.

[0107] The transformer detection temperature value T obtained by the transformer detection temperature value acquisition means 24 Ｔ The °C information is the temperature value T detected by the transformer. ＴThe °C value is associated with information identifying the transformer from which it was acquired and stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time. The instantaneous current value i (amperes) (instantaneous AC current value or instantaneous DC current value) information acquired by the distribution board instantaneous current value acquisition means 25 is associated with information identifying the electrical equipment from which the instantaneous current value i (amperes) was acquired and stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time. The leakage current / stray current value information grasped by the leakage current / stray current value detector ZCT is associated with information identifying the breaker 23 and stored in the memory unit (not shown) of the computer system 1 along with information regarding the acquisition time.

[0108] Therefore, by using the aforementioned database creation means (for example, the database processing unit 18), these can be created into a database, and when the computer system 1 receives an information provision request from administrator terminals 3a, 3b, ..., staff terminals 4a, 4b, 4c, ... via the network 5b, the computer system 1 can extract the information corresponding to the information provision request from the database and send it from the computer system 1 via the network 5b to the administrator terminals 3a, 3b, ..., staff terminals 4a, 4b, 4c, ... that made the information provision request.

[0109] In other words, the computer system 1 is configured to have a database information output means 19 that, when it receives an information provision request from an administrator terminal 3a, 3b, ... or an employee terminal 4a, 4b, 4c, ..., extracts information corresponding to the information provision request from the database and sends it to the administrator terminal 3a, 3b, ... or employee terminal 4a, 4b, 4c, ... that made the information provision request.

[0110] The processing units such as the transformer temperature comparison means 11, instantaneous current value determination means 12, notification information transmission means 13, and notification information level determination means 14 mentioned above do not necessarily need to be all deployed in a single device or apparatus.

[0111] For example, a power receiving and transforming equipment 2, which is the subject of monitoring and control, may be equipped with some of these components, and this equipment may be located separately from the power receiving and transforming equipment 2 and connected via a wired or wireless network to other equipment consisting of a computer equipped with the remaining components, enabling information exchange.

[0112] Alternatively, the power receiving and transforming equipment to be monitored and controlled may be equipped with some of the components described above, and these may be located separately from the power receiving and transforming equipment and be connected via a wired or wireless network to other devices and equipment consisting of computers equipped with some of the other components, and other devices and equipment consisting of computers equipped with the remaining components.

[0113] In the above configuration, a server computer located on the cloud may be included among one or more other devices or equipment that are deployed separately from the power receiving and transforming equipment 2, connected via a wired or wireless network, and possess some or the remaining components of the other configurations described above.

[0114] <Configuration and Features of a Digital Safety Control System for Substation Equipment, Leakage Current, and Stray Current> The DESCON Safety Control System, for example, detects the temperature of a high-voltage transformer in a substation or the current values ​​of lights and power in a low-voltage distribution panel in real time, and (1) if the temperature of a high-voltage transformer in a substation reaches or exceeds a predetermined maximum allowable temperature, it sends abnormal temperature information for the relevant high-voltage transformer for lights and power to the PC, tablet, or smartphone of the relevant party, including, for example, the customer's name, address, name of the light / power transformer, system, and an alert; and (2) also sends information to the low-voltage distribution panel for lights and power in the system of the relevant high-voltage transformer for lights and power. The system can send information such as the warning temperature, alarm temperature, and temperature rise rate relative to the maximum allowable temperature of the transformer, as well as (3) the detected current value and operating rate demand rate of the relevant lighting / power distribution panel, to the PCs, tablets, and smartphones of relevant personnel, for example, customer name, address, lighting / power transformer name, system, and alert. This allows relevant personnel to recognize the detected current and operating rate of the relevant low-voltage distribution panel in the system, along with the warning / alarm temperature information of the relevant transformer, and to confirm the transformer temperature of the relevant lighting / power substation equipment, as well as the current value, operating rate, and demand rate of the lighting / power low-voltage distribution panel, thereby providing a means to comprehensively verify safety.

[0115] Furthermore, the transformer can be configured to automatically shut off the system distribution panel of the transformer, or a distribution panel or circuit that can be automatically shut off without causing problems, at a predetermined temperature such as an alarm temperature or boiling point temperature.

[0116] The DESCON safety control system, for example, consists of a high-voltage transformer and a low-voltage distribution board. For instance, the detection current of a low-voltage distribution board for lighting and power is the maximum current value of the constant-voltage distribution board's capacity. The system can be configured to set a current value for energizing a thermal relay in the low-voltage distribution board, and the energizing capacity of the low-voltage distribution board to approximately 70-78% for lighting and 60-70% for power, and to issue an alarm alert when the current value reaches the aforementioned percentage.

[0117] The DESCON Safety Control System prevents overcurrents and other issues, and for safety reasons, if a predetermined caution current value, operating rate, or alarm current or operating rate is reached or exceeded, it sends information about the relevant low-voltage distribution panel for lighting and power to the PCs, tablets, and smartphones of the relevant parties, including, for example, the customer name, address, name of the low-voltage distribution panel for lighting and power, system, and alert. (1) The system can also be configured to include a means to comprehensively verify safety by checking the detected temperature of the relevant high voltage in the system, for example, the temperature rise rate relative to the allowable maximum temperature, the transformer temperature of the relevant lighting and power substation equipment, and (2) the current value, operating rate, and demand rate of the low-voltage distribution panel for lighting and power.

[0118] The DESCON Safety Control System can be configured to (1) detect the temperature of the high-voltage transformers for lighting and power, which are components of the power receiving and transforming equipment, in real time using a thermometer thermistor, and (2) detect and input the current value of the low-voltage distribution panel of the relevant system in real time using an ammeter CT.

[0119] The DESCON Safety Control System can be configured to: (1) for example, when the detection temperature of a high-voltage lighting / power transformer constituting the power receiving and transforming equipment detects a pre-set warning temperature, maximum allowable temperature, or alarm temperature, regardless of the detection current of the low-voltage distribution board of the relevant system, (2) send an alert to the PC, tablet, or smartphone of the person in charge, for example, the customer's name, address, name of the lighting / power transformer, system, and (3) when the alarm temperature exceeds a pre-determined maximum allowable temperature for automatic shutoff, or when the automatic shutoff temperature is likely to reach the boiling point, automatically shut off the system according to a pre-determined program, and send an alert to the PC or smartphone of the person in charge, for example, the customer's name, address, name of the lighting / power transformer, distribution board, switchboard, etc., indicating that the system has been automatically shut off.

[0120] The DESCON Safety Control System can also be configured to: (1) when the detection current of a low-voltage lighting / power distribution panel, which is part of the power receiving and transforming equipment, detects a pre-set warning current or alarm current, regardless of the detected high-voltage temperature of the relevant system; (2) send an alert to the PC, tablet, or smartphone of the person in charge, including, for example, the customer's name, address, the name of the low-voltage lighting / power distribution panel, the system; and (3) when the system reaches a pre-determined automatic shutoff alarm temperature or an automatic shutoff temperature that is likely to reach the boiling point, for example, it automatically shuts off using a pre-determined program and sends an alert to the PC or smartphone of the person in charge, including, for example, the customer's name, address, the name of the lighting / power transformer, the name of the distribution panel, the switchboard, etc., indicating that the system has been automatically shut off.

[0121] As described above, the DESCON Safety Control System can also be configured to include a means for sending an alert to the relevant PC or smartphone of a person in charge, indicating that the system has been automatically shut off, for example, the customer's name, address, the name of the lighting / power transformer, the distribution board, or the switchboard, if (1) the temperature detected by the high-voltage transformer or the current detected by the low-voltage switchboard of the power receiving and transforming equipment has detected an abnormality such as the temperature or current, or (2) the abnormality information of the relevant high-voltage transformer or low-voltage switchboard of the power receiving and transforming equipment.

[0122] The DESCON Safety Control System can also be configured to include means for detecting the temperature of the high-voltage transformer and the current of the low-voltage distribution board in the power receiving and transforming equipment, for example, (1) the temperature of the high-voltage transformer or (2) the current, and (3) an alert that the system has been automatically shut off, for example, the temperature or current of the equipment in question for which abnormal information was previously detected, to the PCs and smartphones of the relevant parties, including the customer's name, address, name of the lighting / power transformer, distribution board, switchboard, etc.

[0123] The DESCON Safety Control System detects, in real time, the temperature of the high-voltage transformer in the power receiving and transforming equipment or the current values ​​of the lighting and power in the low-voltage distribution panel, for example, in the configuration wiring diagrams of the high-voltage transformer for the power receiving and transforming equipment and the low-voltage distribution panel for the power receiving and transforming equipment in the aforementioned buildings, outdoor facilities, etc.

[0124] For example, if the detected temperature of a high-voltage transformer in a power receiving and transforming facility reaches or exceeds a predetermined maximum allowable temperature, abnormal temperature information for the relevant high-voltage transformer for lighting and power will be sent to the PCs, tablets, and smartphones of the relevant parties, including, for example, the customer's name, address, name of the lighting / power transformer, system, and an alert. 2) Furthermore, the system will also include the temperature rise rate relative to the maximum allowable temperature of the transformer in the low-voltage distribution panel for lighting and power of the relevant high-voltage transformer system, and 3) the relevant lighting / power distribution panel... The system can send alerts via voice, image, or numerical email to multiple stakeholders' PCs, tablets, and smartphones, including customer name, location, lighting / power transformer name, and system type, along with warning / alarm temperature information for the relevant transformer. Stakeholders can then recognize the detected current and operating rate of the relevant low-voltage distribution panel in the system, check the transformer temperature of the relevant lighting / power substation equipment, and verify the current value, operating rate, and demand rate of the lighting / power low-voltage distribution panel, thereby providing a means to comprehensively verify safety.

[0125] Furthermore, the transformer can be configured to automatically shut off the system distribution panel of the transformer, or a distribution panel or circuit that can be automatically shut off without causing problems, at a predetermined temperature such as an alarm temperature or boiling point temperature.

[0126] Substation equipment consists of, for example, a high-voltage transformer and a low-voltage distribution board. For example, the detection current of a low-voltage distribution board for lighting and power is the maximum current value which is the capacity of the constant-voltage distribution board. The current value for energizing the thermal relay in the relevant low-voltage distribution board is set, and the energizing capacity of the low-voltage distribution board is conventionally set to, for example, about 70-78% for lighting and about 60-70% for power.

[0127] The DESCON Safety Control System prevents overcurrents and other issues, and for safety reasons, if a predetermined caution current value, operating rate, or alarm current current or operating rate is reached or exceeded, it sends alerts via voice, images, numbers, email, etc., to the PCs, tablets, and smartphones of multiple relevant parties, providing information such as the customer name, address, name of the low-voltage distribution panel for lighting and power, and system type. 1) The system can also be configured to comprehensively verify safety by checking the detected temperature of the relevant high voltage in the system, for example, the temperature rise rate relative to the maximum allowable temperature, the transformer temperature of the relevant lighting and power substation equipment, and 2) the current value, operating rate, and demand rate of the low-voltage distribution panel for lighting and power.

[0128] The DESCON Safety Control System can be configured to: 1) detect the temperature of the high-voltage transformers for lighting and power, which are components of the power receiving and transforming equipment, in real time using a thermometer thermistor; and 2) detect and input the current value of the low-voltage distribution panel of the relevant system in real time using an ammeter CT.

[0129] The DESCON Safety Control System can be configured to: 1) For example, when the detection temperature of a high-voltage lighting / power transformer constituting the power receiving and transforming equipment detects a pre-set warning temperature, maximum allowable temperature, or alarm temperature, regardless of the detection current of the low-voltage distribution board of the relevant system, 2) send an alert to the PC, tablet, or smartphone of the person in charge via voice, image, numerical data, email, etc., including information such as the customer's name, address, name of the lighting / power transformer, and system; and 3) when the alarm temperature exceeds a pre-determined maximum allowable temperature for automatic shutoff, or when the automatic shutoff temperature is likely to reach the boiling point, the system will be automatically shut off by a pre-defined program, and an alert will be sent to the PC or smartphone of the person in charge via voice, image, numerical data, email, etc., indicating that the system has been automatically shut off, including information such as the customer's name, address, name of the lighting / power transformer, and the distribution board or switchboard.

[0130] The DESCON Safety Control System can also be configured to: 1) When the detection current of a low-voltage lighting / power distribution panel, which is part of the power receiving and transforming equipment, detects a pre-set warning current or alarm current, regardless of the detected high-voltage temperature of the relevant system, 2) send an alert to the PCs, tablets, and smartphones of multiple relevant parties, including, for example, the customer's name, address, the name of the low-voltage lighting / power distribution panel, the system, and 3) when the system reaches a pre-defined alarm temperature or an automatic shutoff temperature that may reach the boiling point, for example, it automatically shuts off the power according to a pre-defined program and sends an alert to the PCs and smartphones of relevant parties, for example, the customer's name, address, the name of the lighting / power transformer, the distribution panel, the switchboard, etc., indicating that the system has been automatically shut off, via voice, image, numerical data, email, etc.

[0131] As described above, the DESCON Safety Control System can be configured to include means for sending alerts via voice, images, numerical data, email, etc., to the PCs and smartphones of multiple relevant parties, indicating that the system has been automatically shut off, for example, the customer's name, address, lighting / power transformer name, distribution board, switchboard, etc., if 1) the temperature detected by the high-voltage transformer or the current detected by the low-voltage switchboard of the substation equipment detects abnormal information such as the temperature or current, and 2) the system has been automatically shut off.

[0132] As described above, the DESCON Safety Control System can be configured to detect, for example, the temperature of a high-voltage transformer in a power receiving and transforming equipment, or the current of a low-voltage distribution board, and to send an alert via voice, image, numerical data, email, etc., to the PC or smartphone of a person in charge, indicating that the system has been automatically shut off, for example, the temperature or current of the equipment in question for which abnormal information was previously detected.

[0133] The DESCON safety control system can be configured to detect and store, for example, the detected temperature of the high-voltage transformer in the power receiving and transforming equipment, the detected current values ​​for lighting and power in the low-voltage distribution board, and to store the detected temperature, warning temperature, alarm temperature, etc. of the high-voltage transformer for lighting and power in the power receiving and transforming equipment, and the detected current values, warning current, alarm current, etc. of the low-voltage distribution board for lighting and power, for example, in seconds, minutes, hours, days, weeks, 10 days, months, 3 months, 6 months, yearly for each season, and separately for 1 year ago, 2 years ago, 3 years ago, ... 5 years ago ... n years ago, and to create a database.

[0134] The DESCON safety control system can be configured to include means for detecting and storing, for example, the detected temperature of the high-voltage transformer of the power receiving and transforming equipment, and the detected current values ​​of the lighting and power of the low-voltage distribution board, and 1) the detected temperature, warning temperature, alarm temperature, etc. of the high-voltage transformer of the lighting and power of the power receiving and transforming equipment, and the detected current values, warning current, alarm current, etc. of the low-voltage distribution board for lighting and power, and 2) the means for comparing these values ​​for each year, month, day, hour, minute, and second, for example, seconds, minutes, hours, weeks, 10 days, months, seasons such as 3 months, 6 months, and years, with the values ​​for 1 year, 2 years, 3 years, ... 5 years, ... n years ago, etc., and calculating the numerical difference and deviation rate.

[0135] The DESCON Safety Control System detects and stores, for example, the temperature detected by the high-voltage transformer of the power receiving and transforming equipment, and the current values ​​detected by the lighting and power of the low-voltage distribution board, and stores: 1) the temperature detected by the high-voltage transformer of the lighting and power of the power receiving and transforming equipment, the warning temperature, the alarm temperature, etc., and the current values ​​detected by the low-voltage distribution board of the lighting and power, the warning current, the alarm current, etc., and 2) for example, seconds, minutes, hours, days, weeks, 10 days, months, seasons such as 3 months, 6 months, year, etc., and 1 year ago, 2 years ago, 3 years ago, ... 5 years ago ...The system can be configured to compare current data with data from n years ago, broken down by year, month, day, hour, minute, and second, calculate numerical differences and deviation rates, and then send the calculated data to multiple stakeholders' PCs, tablets, smartphones, etc., in predetermined units such as seconds, minutes, hours, days, weeks, 10-day reports, months, quarterly reports, 3-month reports, 6-month reports, and annual reports. It can also be sent in real time to stakeholders' PCs, tablets, smartphones, etc., whenever needed.

[0136] The DESCON Safety Control System can, for example, 1) when it detects the temperature, warning temperature, or alarm temperature of a high-voltage transformer for lighting and power in a power receiving and transforming facility, send alerts in real time to multiple relevant parties, such as PCs, tablets, and smartphones, including the rate of rise to the maximum permissible temperature, the current value of the low-voltage distribution panel for the relevant lighting and power, and the demand rate of the operating rate.

[0137] The DESCON Safety Control System can also be configured to include a means of detecting warning currents, alarm currents, etc., in the low-voltage distribution panels for lighting and power in the power receiving and transforming equipment, and then sending alerts to multiple relevant parties, such as PCs, tablets, and smartphones, regarding the current value, operating rate, and, for example, the rate of increase and operating demand rate relative to the safety alarm current of the summary relay.

[0138] The DESCON Safety Control System can be configured to significantly reduce the direct human resources required for the equipment and enable appropriate personnel allocation by: 1) detecting real-time temperature, warning temperature, alarm temperature, etc., of high-voltage transformers for lighting and power in substation equipment, and real-time detecting current, warning current, alarm current, etc., related to the current of low-voltage distribution panels for lighting and power; or 2) sending alerts to the PCs, tablets, and smartphones of multiple relevant personnel in the event of periodic reports or abnormalities.

[0139] The DESCON Safety Control System, in accordance with the wiring diagram of the power receiving and transforming equipment such as the high-voltage transformers for lighting and power in the power receiving and transforming equipment, the low-voltage distribution boards for lighting and power in the power receiving and transforming equipment, the circuits for lighting and power in the system, and the electrical equipment, machinery, terminal load equipment, etc., is installed in the electrical equipment, machinery, terminal load equipment, fixtures, etc., and 1) for example, ZCTs for main lines, branch lines, wiring, etc., and leakage current detectors detect leakage current in the equipment and main lines, branch lines, wiring, etc., and 2) for example, the relevant low-voltage distribution boards, distribution boards, relevant circuits, etc., for lighting and power in the power receiving and transforming equipment, the circuits for lighting and power in the system, and the electrical equipment, machinery, terminal load equipment, fixtures, etc., and 3) arbitrarily determined in advance For example, the system can be configured to detect leakage currents in each of the aforementioned main lines, wiring, etc., and each panel, electrical equipment, load equipment, and fixtures, using a leakage current sensitivity current or leakage current coefficient of 0.9 or 1.0 as the alarm leakage current, and to send alerts to the PCs, tablets, and smartphones of multiple stakeholders, including, for example, the customer's name, address, the name of the relevant panel for lighting and power, the main line, wiring, circuit, system, electrical equipment, mechanical equipment, and terminal load equipment names, via voice, image, numerical values, email, etc., and to send alerts to the PCs, tablets, and smartphones of multiple stakeholders, including, when an alarm leakage current value is detected, to send alerts to the PCs, tablets, and smartphones of the relevant breakers, such as the aforementioned low-voltage distribution board, each main line, each panel, control panel, wiring, circuit, etc., and electrical equipment, load equipment, and fixtures, in real time, indicating that the breakers have been activated and automatically shut off.

[0140] The DESCON Safety Control System, as shown in the wiring diagram of the power receiving and transforming equipment for buildings, outdoor facilities, etc., such as the high-voltage transformers for lighting and power in the power receiving and transforming equipment, the low-voltage distribution boards for lighting and power in the power receiving and transforming equipment, the power distribution boards for the power receiving and transforming equipment, and the electrical equipment, machinery, terminal load equipment for the power receiving and transforming equipment, is shown in the separate wiring diagram of the high-voltage transformer system for lighting and power in the power receiving and transforming equipment, for example, 1) three sides of the low-voltage distribution boards NO1 to NO3 for lighting and NO1 to N for power low-voltage distribution boards 1) There are four sides of O4, and ZCTs and ground fault detectors are installed in the lighting and power low-voltage distribution boards. 2) For example, the NO1 lighting low-voltage distribution board has distribution boards N01 to NO8, and ZCTs and ground fault detectors are installed in the lighting distribution boards. 3) The NO1 lighting distribution board has circuits NO1 to NO12, and ground fault detectors are installed in each board or control board. 4) For example, ground fault detectors are installed in each of the aforementioned boards, control boards, electrical equipment, mechanical equipment, terminal load equipment, etc. 5) For example, the distribution boards, main lines, distribution boards, branch lines, etc. 7) When leakage current occurs in main lines, wiring, control panels, electrical equipment, mechanical equipment, terminal load equipment, terminal electrical appliances, etc., 6) When leakage current occurs in each of the above panels, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., and a pre-set program detects a warning leakage current value, an alert is sent to the PCs, tablets, and smartphones of multiple relevant parties via voice, image, numerical email, etc., including, for example, customer name, address, lighting / power distribution panel, distribution board, circuit name, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc. 8) When the leakage current value detects a warning leakage current value, the corresponding distribution panel, distribution board, circuit name, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc. is automatically shut off.

[0141] As shown in the wiring diagram for the above-mentioned buildings, outdoor facilities, etc., for example, the high-voltage transformers for lighting and power in the power receiving and transforming equipment, the low-voltage distribution boards for lighting and power, the lighting and power distribution boards in the system, the lighting and power circuits in the system, and the electrical equipment, machinery, terminal load equipment, etc., the wiring diagram for the high-voltage transformer system of the power receiving and transforming equipment is as follows: 1) For example, there are three sides of the low-voltage lighting distribution boards NO1 to NO3 and four sides of the low-voltage power distribution boards NO1 to NO4, and the low-voltage lighting distribution boards are equipped with ZCTs and leakage detectors, 2) For example, the NO1 low-voltage lighting distribution board has distribution boards N01 to NO8, and the lighting distribution boards are equipped with ZCTs and leakage detectors, 3) NO1 The lighting distribution board has circuits NO1 to NO12, and leakage current detectors are installed in each board or control panel. 4) For example, leakage current detectors are installed in each of the aforementioned boards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc. 5) For example, leakage current flows into a considerable number of the aforementioned distribution boards, main lines, distribution boards, branch main lines, wiring, control panels, electrical equipment, mechanical equipment, terminal load equipment, terminal electrical appliances, etc., and is not detected. 7) For example, this becomes stray current in a considerable number of the aforementioned distribution boards, main lines, distribution boards, branch main lines, wiring, control panels, electrical equipment, mechanical equipment, terminal load equipment, terminal electrical appliances, etc., in facilities, buildings, etc., and a considerable number of people are required to investigate and identify it.

[0142] The DESCON Safety Control System detects stray currents in each of the following components, according to the wiring diagram of the low-voltage distribution panels for lighting and power in the aforementioned buildings and outdoor facilities: 1) the distribution panels for lighting and power in the system, the circuits for lighting and power in the system, and the electrical equipment, machinery, terminal load equipment, etc. 2) the stray currents in each of the panels, circuits, main lines, branch lines, circuits, control panels, electrical equipment, machinery, terminal load equipment, etc. 3) a pre-set program sends information such as customer name, location, lighting and terminal load equipment, etc., to the PCs, tablets, and smartphones of multiple stakeholders via voice, images, and numerical data. The system can be configured to send alerts via email, etc., and 7) when a leakage current value is detected in a power distribution board, switchboard, circuit name, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc., it can automatically shut off the corresponding switchboard, switchboard, circuit name, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc. via voice, image, numerical email, etc. to the PCs, tablets, and smartphones of multiple relevant parties, for example, customer name, address, lighting / power distribution board, switchboard, circuit name, control panel, electrical equipment, mechanical equipment, etc., if an alarm stray current value is detected, the system can be configured to automatically shut off the corresponding switchboard, switchboard, circuit name, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc., and 8) send alerts via voice, image, numerical email, etc. to the PCs, tablets, and smartphones of multiple relevant parties.

[0143] The DESCON Safety Control System, as described above, is configured as follows: 1) For example, the lighting and power high-voltage transformer system of the power receiving and transforming equipment has three sides (NO1 to NO3) and four sides (NO1 to NO4), with ZCTs and leakage current detectors installed in the lighting and power low-voltage distribution panels; 2) For example, the NO1 lighting low-voltage distribution panel has distribution panels N01 to NO8, with ZCTs and leakage current detectors in the lighting distribution panels; 3) The NO1 lighting distribution panel has circuits NO1 to NO12, and each panel or control panel; 4) For example, the aforementioned panels, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc.; 5) For example, 6) The system can be configured to detect and database leakage currents and stray currents in the aforementioned distribution boards, main lines, distribution panels, branch lines, wiring, control panels, electrical equipment, mechanical equipment, terminal load equipment, terminal electrical appliances, etc., and when leakage currents and stray currents are detected in each of the aforementioned panels, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., the system can be configured to store them separately in a database in a predetermined format, such as seconds, minutes, hours, days, weeks, 10 days, months, seasons (3 months, 6 months, year, etc.), and for periods of 1 year, 2 years, 3 years, ... 5 years, ... n years ago, etc.

[0144] Furthermore, for example, leakage currents can be recorded as warning leakage currents and alarm leakage currents, and stray currents as warning stray currents and alarm stray currents. The system can be configured to store and database leakage currents, stray currents, etc., separately for, for example, seconds, minutes, hours, days, weeks, 10 days, months, seasons (3 months, 6 months, year, etc.), and for 1 year, 2 years, 3 years, ... 5 years, ... n years ago.

[0145] The DESCON Safety Control System detects and databases leakage currents and stray currents in various panels, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., of the aforementioned equipment, such as low-voltage distribution panels for lighting and power, etc. 1) For example, the distribution panels, main lines, distribution boards, branch lines, wiring, control panels, electrical equipment, mechanical equipment, terminal load equipment, terminal electrical appliances, etc. 2) When leakage currents and stray currents are detected in the aforementioned panels, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., it sets a preset, for example , 3) the system can be configured to store and database the data for seconds, minutes, hours, days, weeks, 10 days, months, 3 months, 6 months, and years for each season, as well as for 1 year, 2 years, 3 years, ... 5 years, ... n years ago, and to compare the warning leakage current, alarm leakage current, etc., with the corresponding year, month, day, hour, minute, and second data for each season, 3) for example, seconds, minutes, hours, minutes, and seconds, and to calculate the numerical difference and deviation rate.

[0146] The DESCON Safety Control System features the ability to periodically report data to multiple stakeholders, such as PCs, tablets, and smartphones, in predetermined units, such as second reports, minute reports, hourly reports, daily reports, weekly reports, 10-day reports, monthly reports, 3-month reports, 6-month reports, and annual reports, as well as to stakeholders, such as one year, two years, three years, ... five years, ... n years ago, comparing the data for each corresponding year, month, day, hour, minute, and second, such as second, minute, hour, week, 10-day, month, seasonal 3-month reports, 6-month reports, and annual reports, and to transmit the calculated data to stakeholders' PCs, tablets, and smartphones in real time when necessary. It can be configured to include means for transmission.

[0147] As described above, the DESCON Safety Control System can be configured to provide a means to significantly reduce the direct human resources required for the relevant facilities and buildings, etc., by 1) providing information on, for example, the distribution boards, main lines, switchboards, branch lines, wiring, warning leakage currents, alarm leakage currents, etc., and 2) providing periodic reports or sending alerts to the PCs, tablets, and smartphones of multiple relevant personnel in the event of an abnormality, for example, in seconds, minutes, hours, days, weeks, 10 days, months, seasonal intervals of 3 months, 6 months, years, etc., as well as 1 year, 2 years, 3 years, ... 5 years, ... n years ago, etc., thereby enabling appropriate human resource allocation.

[0148] <Configuration and Features of the DESCON Safety Control System> The DESCON Safety Control System is configured as follows: (1) It detects and inputs current, voltage, temperature, images, etc. of the power distribution boards, switchboards, control panels, main lines, circuits, breakers, remote devices, etc. of the power receiving and transforming equipment, as well as load terminal equipment, electrical equipment, etc., and detects and determines whether the values ​​are normal or abnormal. (2) If an abnormal value is found, it sends an alert to the relevant person's PC, tablet, smartphone, etc., notifying them of the relevant information such as customer name, building name, facility name, location, type and capacity of power, electrical equipment of the system terminal, load equipment name, etc., using voice, numerical images, etc. Furthermore, the alert sound will be continuously transmitted until the relevant person confirms and resets it, preventing the system from failing to confirm.

[0149] Next, (1) if the aforementioned value increases and reaches an arbitrarily predetermined value, an alert is sent to the relevant parties as a warning signal with the aforementioned content; (2) if the detected value increases to an arbitrarily predetermined value, an alarm signal is sent, automatically shutting off the panel, main line, circuit, breaker, etc. of the relevant equipment, and an alert is sent to the relevant parties, and the alert is sent continuously until the relevant parties confirm and reset it; and (3) the restoration after automatic shutdown can be safely handled in real time.

[0150] The DESCON Safety Control System (1) The aforementioned automatic shutdown applies to various facilities and electrical equipment such as goods and manufacturing systems using computer programs such as AI and IoT, logistics centers, large freezers, refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting, elevators, etc., data centers for important data, research and test results, etc., infrastructure substations, etc., and transportation systems such as trains and ships; (2) Terminal equipment such as program control and control terminal equipment for the relevant terminal equipment and electrical equipment will be shut down according to a predetermined program; (3) Distribution boards, switchboards, control panels, main lines, A digital safety control system for power receiving and transforming equipment, leakage current, and stray current, which consists of circuits, breakers, etc., system-specific remote devices, a cloud server, LAN, etc., can be configured to have a function to shut down the system via an emergency response protection program using system-specific remote devices, a cloud server, LAN, etc., by transmitting a signal from the remote device of the relevant distribution board, switchboard, control panel, etc. to send a signal to the protection stop device, thereby safely protecting the control of a group or selected terminal equipment, and can be configured to have a means for controlling the stop function in a normal and safe manner, as well as a means for confirming the stop signal.

[0151] The DESCON Safety Control System (1) converts the high-voltage power from the power company into low-voltage power using a transformer equipped with a temperature sensor to detect the transformer temperature, for example. This low-voltage power for lighting and power is connected to transformers in each system of a building facility, for example. The system includes a switchboard equipped with a current measuring instrument CT and a leakage current measuring instrument ZCT to detect leakage current, for example. The system supplies power to each area, floor, etc., and electrical equipment and load equipment according to the system of the building facility. The DESCON Safety Control System (1) converts the high-voltage power from the power company into low-voltage power using a transformer equipped with a temperature sensor to detect the transformer temperature, for example. This low-voltage power for lighting and power is connected to transformers in each system. The system includes a power receiving and transforming equipment, leakage current, and stray current digital safety control system that supplies and transmits power to each area, floor, etc., and electrical equipment and load equipment according to the system. The system can be configured to input and store the maximum allowable temperature of the transformer's insulating material as the maximum allowable temperature of the transformer, for example, according to the heat-resistant insulation type: A type 105°C, E type 120°C, B type 130°C, F type 155°C, H type 180°C, etc.

[0152] The DESCON Safety Control System can detect temperatures of 105°C (maximum allowable temperature for insulation type A) and a predetermined safety factor of 0.98, and then send an alert via voice, image, or email to the PCs, tablets, or smartphones of relevant personnel, including the customer name, building / facility name, location, the name of the relevant light fixture or power transformer, and a warning temperature of 102.9°C and a warning temperature rate of 98.0%.

[0153] Furthermore, for example, in the case of insulation type A with a maximum allowable temperature of 105°C, if the temperature exceeds a predetermined maximum allowable temperature of 105°C, for example, if the detected temperature is 132°C and the temperature rise rate = (detected temperature 132°C / maximum allowable temperature 105°C) = 125.7%, an alert can be sent via email or other means, including the name of the relevant customer, building facility, lighting / power number, transformer, etc.

[0154] Furthermore, the DESCON Safety Control System, while the boiling point of insulating oil for insulation type A is said to be around 290°C to 340°C, for example, if the temperature of an insulating type A transformer is such that the boiling point of the insulating oil is 290°C and a safety factor is predetermined, for example, 0.6, then if the insulation temperature = (290°C x 0.5) = 145°C is detected, the system will automatically shut off the circuits of each distribution board in the system of the transformer's distribution board, for example, the circuits of the distribution boards that can be shut off without causing any problems, in the order of the circuit breaker circuits of the distribution board, according to a predetermined program, until the temperature drops to the maximum allowable temperature of 105°C. Based on the boiling point alarm temperature, the system can send an alert to the relevant customer's name, building facility, transformer distribution board, system distribution board, electrical equipment, load equipment, etc., via PC, tablet, voice, image, email, etc., detailing the automatic shutdown of the relevant equipment.

[0155] <Heat resistance class and temperature of insulating material of TR transformers in power receiving and transforming equipment> Notwithstanding the foregoing, the DESCON Safety Control System determines whether the (1) maximum allowable temperature of the insulating type of lighting and power transformers is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H, based on the maximum allowable temperature of the corresponding type A to H, and whether the (2) detected temperature of the temperature sensor installed in the TR exceeds the corresponding maximum allowable temperature, or whether the detected temperature is below the maximum allowable temperature, or based on the (3) maximum allowable temperature values ​​of each of the above types A to H. For example, (4) a safety temperature coefficient of 0.97 is arbitrarily set in advance as the safety caution temperature. For example, (5) for a Class A TR = (Class A maximum allowable temperature 105℃ x 0.97) = caution temperature 102℃, (6) when a caution temperature is detected, an alert can be sent to the PC, tablet, smartphone, etc. of the relevant person, with information such as the customer name, building / facility name, location, the name of the light fixture, power transformer, etc., along with "caution temperature 102.0℃", "caution temperature rate 97.0%", etc.

[0156] Furthermore, the system terminal will send alerts in the form of voice, numbers, images, etc., indicating the names of electrical equipment load equipment, etc., and the alert sound will be continuously transmitted until the relevant person confirms and resets it to prevent any oversight by the relevant person. (7) Also, if the detected temperature exceeds the "maximum allowable temperature of 105°C", for example, 132°C, (8) the alarm shut-off temperature will be set arbitrarily in advance, for example, with an alarm shut-off temperature coefficient of 1.10, so the alarm shut-off temperature = (maximum allowable temperature of 105°C x alarm shut-off temperature coefficient of 1.10) = 112.2, and (9) the automatic shut-off temperature = (detected temperature of 132°C - alarm (10) Automatic shutoff rate = 1 - (alarm shutoff temperature 112.2°C / detection temperature 132°C) = 15% until the temperature drops to a shutoff temperature of 19.8°C. The order of (11) shutoff is predetermined and arbitrarily set for the circuits of the relevant distribution boards, switchboards, etc., and terminal load equipment, electrical equipment, etc., that can be shut off without causing any problems. By automatically shutting off the electrical equipment, etc., the (12) current value that energizes the corresponding TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, (13) the TR temperature decreases. The power receiving and transforming equipment, leakage current, and stray current digital safety control system, upon detecting the aforementioned detection temperature of 132°C, can be configured to send an alert to the relevant parties' PCs, tablets, smartphones, etc., stating, for example, the customer name, building / facility name, location, the name of the relevant light fixture or power transformer, along with the alarm temperature of 132°C and the alarm temperature rise rate of 121.0%.

[0157] Notwithstanding the foregoing, the DESCON Safety Control System determines whether the (1) maximum permissible temperature for the insulation type of the lighting / power transformer is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H, and whether the (2) detected temperature of the temperature sensor installed on the TR exceeds the corresponding maximum permissible temperature or is below the maximum permissible temperature, or whether the (3) maximum permissible temperature for each of the above types A to H Based on this, for example, (4) a safety temperature coefficient of 0.97 is arbitrarily set in advance as the safety caution temperature. For example, (5) for a Class A TR = (Maximum allowable temperature for Class A 105°C x 1.0) = caution temperature 105°C, (6) when a caution temperature is detected, an alert can be sent to the PC, tablet, smartphone, etc. of the relevant person, for example, the name of the customer, the name of the building / facility, the location, the name of the light fixture, power transformer, etc., along with the caution temperature of 105.0°C, the caution temperature rate of 100.0%, etc.

[0158] Furthermore, the system terminal will send alerts in the form of voice, numbers, images, etc., indicating the names of electrical equipment load equipment, etc., and the alert sound will be continuously transmitted until the relevant person confirms and resets it to prevent any failure to confirm by the relevant person. (7) Also, if the detected temperature is above the permissible maximum temperature of 105°C, for example, 132°C, (8) the permissible maximum temperature of 105°C or higher, which has been arbitrarily set in advance, will be used as the alarm shutoff temperature, (9) the automatic shutoff temperature = (detected temperature 132°C - alarm shutoff temperature 105°C) = 27.0°C, and (10) the automatic shutoff rate = 1 - (alarm shutoff temperature 105.0°C / detected temperature The system can be configured to automatically shut off (132°C) = 20% and determine the order of (11) shutting off the circuits of the relevant distribution boards, switchboards, etc., and terminal load equipment, electrical equipment, etc., and by automatically shutting off the relevant distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc., which can be shut off without causing any problems, the (12) current value that energizes the TR is reduced, and as the thermal load of electrical resistance decreases, the TR temperature decreases in proportion to the current value, (13) the TR temperature decreases, and the system can be configured to have a function that lowers the allowable maximum temperature to 105°C or below.

[0159] When the DESCON Safety Control System detects the aforementioned temperature of 132°C, it can determine that the alarm temperature rise rate is (detected temperature 132°C / allowable maximum temperature 105°C) = 121%, and it can send an alert to the PCs, tablets, smartphones, etc. of the relevant parties, displaying, for example, the name of the customer, the name of the building / facility, the location, the name of the relevant light fixture or power transformer, along with the alarm temperature of 132°C and the alarm temperature rise rate of 121.0%.

[0160] As described above, the DESCON safety control system can be configured to automatically shut off (14) distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc., of the TR system with a detected temperature of 132°C, and (16) automatically shut off 20% according to a predetermined program until the temperature drops to (15) the maximum allowable temperature of 105.0°C, and if the temperature does not drop further to the maximum allowable temperature of 105.0°C, it will continue to automatically shut off the relevant distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc., until the temperature drops to 105°C. Conversely, even if the system is shut off according to the program, if the alarm shut-off temperature of 105.0°C is reached, the automatic shut-off will be stopped.

[0161] The DESCON safety control system can be configured to automatically shut off the current at a predetermined alarm shutoff temperature of 105°C or higher, for example, if (17) the current value at a detection temperature of 132°C is (18) 938A, then (19) at an automatic shutoff temperature of 27.0°C with an automatic shutoff rate of 15%, the system can determine the order in which the main distribution board, additional distribution board, circuit terminal load equipment, electrical equipment, etc. will be shut off, and those that can be shut off without causing problems, such as the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., will be shut off, for example, with a detection current value of 938A and an automatic shutoff rate of 20.5%, so (21) the detected shutoff current A = (detection current 938A x automatic shutoff rate 20.5%) = 192.9A.

[0162] The DESCON Safety Control System can be configured to display information such as the customer's name, building / facility name, location, the name of the relevant light fixture or power transformer, as well as an alarm temperature of 132°C and an alarm temperature rise rate of (detected temperature 132°C / allowable maximum temperature 105°C) = 126.0%, and send alerts to the PCs, tablets, smartphones, etc. of those involved.

[0163] The DESCON Safety Control System (1) The automatic shutoff is for various facilities and electrical equipment such as goods and manufacturing using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting and elevators, etc., data centers for important data and research test results, infrastructure substations, etc., and transportation trains, ships, etc. (2) When terminal equipment such as The DESCON safety control system, which consists of remote devices for each system, such as distribution boards, main lines, circuits, and breakers, and a cloud server and LAN, can be configured to have a function to shut down the system by an emergency response protection program via remote devices for each system, such as a distribution board, switchboard, or control panel, which transmits a signal to a protection stop device, thereby safely protecting the control and other terminal equipment, either collectively or selected, and can be configured to have a means for controlling the stop function in a normal and safe manner, as well as a means for confirming the stop signal.

[0164] The DESCON Safety Control System, for example, uses an insulating oil of type A insulation, which has a boiling point of approximately 290°C to 340°C. If the temperature of a type A insulation transformer is detected to be 145°C (290°C x 0.5), and a safety factor of 0.6 is predetermined, the system will automatically shut off the circuits of each distribution board in the transformer's distribution panel system, for example, the circuits of electrical equipment and load equipment that can be safely shut off, in a predetermined sequence of circuit breakers in the relevant distribution board until the temperature drops to the maximum allowable temperature of 105°C. The system will then send an alert to the relevant parties' PCs, tablets, voice, images, email, etc., as a boiling point alarm temperature.

[0165] The DESCON Safety Control System, for example, has the following specifications for the NO1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the NO1 lighting current of 780 A predetermined and arbitrarily set as the alarm load current, and (8) for example, an alarm load current of 780 A and a load factor of 82% predetermined and arbitrarily set. Assuming a safety factor of 0.95, (9) the warning current = 780A x 0.95) = 741.0A, and (10) the current load factor = (741.0 / 952.0) = 77.8%. If a detection current of 741.0A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 741A and a current load factor of 77.8%.

[0166] The DESCON safety control system, for example, has the following characteristics for the No. 1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the current of the No. 1 lighting transformer, arbitrarily determined in advance, is designed and installed as the alarm load current of 780 A, and (8) if the alarm load current exceeds the arbitrarily set alarm load current of 780 A and load factor 82%, for example, the detection current is 801 A, and the load factor = (detection current 800 A / maximum current 952 A) = 84.0%. (9) The system features a control mechanism that automatically shuts off the 20A of circuit NO. 6 of distribution board NO. 1, for example, a circuit that has been pre-defined in the relevant NO. 1 lighting distribution board, when the detected current of 800A exceeds a pre-set arbitrary 780A, (800A detected current - 780A set current) = 20A, thereby reducing the detected current to 780A. (10) It can be configured to send an alert via PC, tablet, voice, image, email, etc., to relevant parties, for example, the building / facility name, location, name of the relevant distribution board, etc., stating that the alarm current was 801A, the current load factor was 84.0%, and the alarm was shut off.

[0167] The DESCON Safety Control System, for example, has a No. 1 power transformer with (1) a capacity of 500 kVA, (2) a maximum current of 1718 A, (3) a thermal relay of 4.5 A, (4) an alarm load current of 1350 A, (5) a load equipment capacity of 393 kW, and (6) a load factor of 79%, and (7) a predetermined No. 1 power current of 1350 A is designed and installed as the alarm load current, and (8) for example, a predetermined and arbitrary setting of an alarm load current of 1350 A and a load factor of 79% is used for safety Multiplying by a total coefficient of 0.95, (9) the safe current = (1350A x 0.95) = 1282.5A, and (10) the safe load factor = (1282.5 / 1718.0) = 74.7%. If a detection current of 1282.5A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 1282.5A and a current load factor of 74.7%.

[0168] The DESCON Safety Control System, for example, has the following characteristics for the No. 1 power transformer: (1) capacity 500 kVA, (2) maximum current 1718 A, (3) thermal relay 4.5 A, (4) alarm load current 1350 A, (5) load equipment capacity 393 KW, (6) load factor 79%, (7) a predetermined arbitrary current of 1350 A for the No. 1 power transformer is designed and installed as the alarm load current, and (8) for example, when the alarm load current of 1350 A and load factor 79% are exceeded, for example, when the detection current is 1430 A and the load factor = (detection current 1450 A / maximum current 1718 A) = 84.4%. (9) When the detected current exceeds a predetermined set value of 1350A, the system automatically shuts off the 100A of circuit NO.6 of distribution board NO.1, for example, a circuit that has been predetermined to shut off, reducing the detected current to 1350A. (10) The system can be configured to send an alert to the relevant person's PC, tablet, voice, image, email, etc., for example, stating that the alarm current is 1450A, the current load factor is 84.4%, and the alarm has been shut off, along with the building / facility name, location, name of the relevant distribution board / distribution board, etc.

[0169] The DESCON Safety Control System is a system that can handle various electrical equipment, air conditioning and ventilation equipment, lighting, elevators, and other load equipment in large buildings and facilities, such as warehouses, logistics centers, factories, large freezers, refrigerators, commercial facilities, terminal buildings, hotels, offices, apartment buildings, research institutes, data centers, event halls, power plants, substations, water treatment plants, and other outdoor facilities, as well as transportation equipment such as trains and ships, and large buildings and facilities.

[0170] <Regarding the configuration and function of the substation equipment (hereinafter referred to as cubicle) under the DESCON Safety Control System, specifically A. Lighting and power transformers, B. Low-voltage lighting and power distribution boards, and C. Distribution boards and terminal load equipment> For example, the configuration of the permanent distribution board + additional distribution board for the lighting transformers in the building's substation equipment, such as the voltage of three lighting transformers (hereinafter referred to as TRs) and four power transformers (hereinafter referred to as TRs), the type of TR insulation (Type A), capacity, thermal relays, circuit current, and equipment capacity, is as follows.

[0171] The substation equipment is configured such that (1) the transformer capacity for lighting and power in the substation equipment is determined by the size of the building or facility, such as area and number of floors, as well as the use of the building or facility and the load capacity of the lighting and power equipment, such as terminal equipment and electrical equipment for each system. (2) The demand for the maximum load capacity consumed by the load capacity is determined by a safety coefficient for lighting, and generally, the load factor is approximately 70-75% for lighting and 60-65% for power, which are the design load capacities. Therefore, the transformer is equipped with a protective function, installed on the secondary side of the transformer. For example, for a lighting transformer, Tr1.6.6k / 210-105V single-phase 200kVA, the thermal relay current value on the secondary side of the ammeter CT is 3.9A, and the alarm is triggered at a load factor of 73%, which is indicated as 0.73.

[0172] For example, for single-phase lighting, (1) the capacity of Tr1 is 6.6k / 210-105V single-phase 200kVA transformer, (2) the maximum allowable current is (200kVA / 210V × 1.0) × 1000 = 952.4A, the ammeter CT1000A has a current value of 3.9A, (4) the overcurrent protection alarm load current of TR is 780A, (5) proportionally the safety protection equipment capacity of TR is 164KW, and (6) the load factor is 82%.

[0173] The safety features of conventional transformers include, for example, the above-mentioned TR's c. capacity of 200 kVA, d. maximum current value of 952 A, e. secondary side output designed for 5 A, f. alarm current value of 3.9 A, also controlled by a thermal relay, g. alarm load current of 780 A, and h. alarm buzzer activated at the power receiving and transforming equipment site at a load factor of 82% and 780 A.

[0174] The DESCON safety control system, for example, has the following specifications for the NO1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the NO1 lighting current of 780 A predetermined and arbitrarily set is designed and installed as the alarm load current, (8) for example, an alarm load current of 780 A and a load factor of 82% can be set arbitrarily in advance. Furthermore, with a safety factor of 0.95, (9) the warning current = (780A x 0.95) = 741.0A, and (10) the current load factor = (741.0 / 952.0) = 77.8%. If a detection current of 741.0A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 741A and a current load factor of 77.8%.

[0175] The DESCON safety control system, for example, has the following specifications for the NO1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the NO1 lighting current of 780 A predetermined and arbitrarily set is designed and installed as the alarm load current, (8) for example, an alarm load current of 780 A and a load factor of 82% can be set arbitrarily in advance. Furthermore, with a safety factor of 0.95, (9) the warning current = (780A x 0.95) = 741.0A, and (10) the current load factor = (741.0 / 952.0) = 77.8%. If a detection current of 741.0A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 741A and a current load factor of 77.8%.

[0176] The DESCON Safety Control System, for example, has a No. 1 power transformer with (1) a capacity of 500 kVA, (2) a maximum current of 1718 A, (3) a thermal relay of 4.5 A, (4) an alarm load current of 1350 A, (5) a load equipment capacity of 393 kW, and (6) a load factor of 79%, and (7) a predetermined No. 1 power current of 1350 A is designed and installed as the alarm load current, and (8) for example, a predetermined and arbitrary setting of an alarm load current of 1350 A and a load factor of 79% is used for safety Multiplying by a total coefficient of 0.95, (9) the safe current = (1350A x 0.95) = 1282.5A, and (10) the safe load factor = (1282.5 / 1718.0) = 74.7%. If a detection current of 1282.5A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 1282.5A and a current load factor of 74.7%.

[0177] The DESCON Safety Control System, for example, has the following characteristics for the No. 1 power transformer: (1) capacity 500 kVA, (2) maximum current 1718 A, (3) thermal relay 4.5 A, (4) alarm load current 1350 A, (5) load equipment capacity 393 KW, (6) load factor 79%, (7) a predetermined arbitrary current of 1350 A for the No. 1 power transformer is designed and installed as the alarm load current, and (8) for example, when the alarm load current of 1350 A and load factor 79% are exceeded, for example, when the detection current is 1430 A and the load factor = (detection current 1450 A / maximum current 1718 A) = 84.4%. (9) When the detected current exceeds a predetermined set value of 1350A, the system automatically shuts off the 100A of circuit NO.6 of distribution board NO.1, for example, a circuit that has been predetermined to shut off, reducing the detected current to 1350A. (10) The system can be configured to send an alert to the relevant person's PC, tablet, voice, image, email, etc., for example, stating that the alarm current is 1450A, the current load factor is 84.4%, and the alarm has been shut off, along with the building / facility name, location, name of the relevant distribution board / distribution board, etc.

[0178] Notwithstanding the foregoing, the DESCON Safety Control System determines whether the (1) maximum permissible temperature for the insulation type of the lighting and power transformer is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H, and whether the (2) detected temperature of the temperature sensor installed on the TR exceeds the corresponding maximum permissible temperature or whether the detected temperature is below the maximum permissible temperature, or whether the (3) maximum permissible temperature value for each of the above types A to H is used as a reference. For example, (4) a safety temperature coefficient of 0.97 is arbitrarily set in advance as the safety caution temperature. For example, (5) for a Class A TR = (Maximum allowable temperature for Class A 105°C x 0.97) = caution temperature 102°C. (6) When a caution temperature is detected, an alert can be sent to the PCs, tablets, smartphones, etc. of the relevant parties, containing information such as the customer name, building / facility name, location, name of the light fixture, power transformer, etc., along with "caution temperature 102.0°C", "caution temperature rate 97.0%", etc.

[0179] Furthermore, the system terminal will send alerts in the form of voice, numbers, images, etc., indicating the names of electrical equipment load equipment, etc., and the alert sound will be continuously transmitted until the relevant person confirms and resets it to prevent any oversight by the relevant person. (7) Also, if the detected temperature exceeds the "maximum allowable temperature of 105°C", for example, 132°C, (8) the alarm shut-off temperature = (maximum allowable temperature of 105°C x alarm shut-off temperature coefficient of 1.10) = 112.2, with the alarm shut-off temperature set arbitrarily in advance, for example, 1.10, and (9) the automatic shut-off temperature = (detected temperature of 132°C - alarm shut-off temperature of 11 2.2°C) = 19.8°C, (10) Automatic shutoff rate = 1 - (Alarm shutoff temperature 112.2°C / Detection temperature 132°C) = 15% until the temperature drops, the order of (11) shutoff of the relevant distribution board, switchboard circuits, etc., and terminal load equipment, electrical equipment, etc., which can be shut off without causing any problems, is predetermined, and by automatically shutting off the electrical equipment, etc., the (12) current value that energizes the relevant TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, (13) the TR temperature can be made to decrease.

[0180] The DESCON Safety Control System, for example, uses a transformer with insulation oil of type A insulation, which has a boiling point of approximately 290°C to 340°C. If the temperature of the transformer is, for example, 290°C, and the boiling point of the insulating oil is 290°C, and a safety factor of 0.6 is predetermined, then if the insulation temperature is detected to be (290°C x 0.5) = 145°C, the system will automatically shut off the circuits of each distribution board in the system of the transformer, for example, the circuits of electrical equipment and load equipment that can be shut off without causing problems, in the order of the circuit breaker circuits of the distribution board, according to a predetermined program, until the temperature drops to the maximum allowable temperature of 105°C. Based on the boiling point alarm temperature, the system will send an alert to the relevant parties via PC, tablet, voice, image, email, etc., detailing the automatic shutdown of the relevant equipment, including the customer name, building facilities, transformer distribution board, system distribution board, electrical equipment, load equipment, etc.

[0181] The DESCON safety control system, for example, has the following specifications for the No. 1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the current of the No. 1 lighting, arbitrarily determined in advance, 780 A is designed and installed as the alarm load current, (8) for example, an alarm load current of 780 A and a load factor of 82% Assuming a user-defined safety factor of 0.95, (9) the warning current = (780A x 0.95) = 741.0A, and (10) the current load factor = (741.0 / 952.0) = 77.8%. If a detection current of 741.0A is detected, (10) an alert is sent to the relevant person's PC, tablet, voice, image, email, etc., including, for example, the building / facility name, location, the name of the relevant distribution board / switchboard, along with a warning current of 741A and a current load factor of 77.8%.

[0182] The DESCON safety control system, for example, has the following characteristics for the No. 1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the current of the No. 1 lighting transformer, arbitrarily determined in advance, is designed and installed as the alarm load current of 780 A, and (8) if the alarm load current exceeds the arbitrarily set alarm load current of 780 A and load factor 82%, for example, the detection current is 801 A, and the load factor = (detection current 800 A / maximum current 952 A) = 84.0%. (9) The system features a control mechanism that automatically shuts off the 20A of circuit NO. 6 of distribution board NO. 1, for example, a circuit that has been pre-defined in the relevant NO. 1 lighting distribution board, when the detected current of 800A exceeds a pre-set arbitrary 780A, (800A detected current - 780A set current) = 20A, thereby reducing the detected current to 780A. (10) It can be configured to send an alert via PC, tablet, voice, image, email, etc., to relevant parties, for example, the building / facility name, location, name of the relevant distribution board, etc., stating that the alarm current was 801A, the current load factor was 84.0%, and the alarm was shut off.

[0183] The DESCON Safety Control System, for example, has a No. 1 power transformer with (1) a capacity of 500 kVA, (2) a maximum current of 1718 A, (3) a thermal relay of 4.5 A, (4) an alarm load current of 1350 A, (5) a load equipment capacity of 393 kW, and (6) a load factor of 79%, and (7) a predetermined No. 1 power current of 1350 A is designed and installed as the alarm load current, and (8) for example, a predetermined and arbitrary setting of an alarm load current of 1350 A and a load factor of 79% is used for safety Multiplying by a total coefficient of 0.95, (9) the safe current = (1350A x 0.95) = 1282.5A, and (10) the safe load factor = (1282.5 / 1718.0) = 74.7%. If a detection current of 1282.5A is detected, (10) an alert can be sent to the relevant person's PC, tablet, voice, image, email, etc., with information such as the building / facility name, location, and name of the relevant distribution board / switchboard, along with a warning current of 1282.5A and a current load factor of 74.7%.

[0184] Notwithstanding the foregoing, the DESCON Safety Control System, for example, for lighting and power transformers, has (1) maximum permissible temperatures for insulation types: Class A 105°C, Class E 120°C, Class B 130°C, Class F 155°C, and Class H 180°C. Based on the maximum permissible temperatures for the corresponding Class A to H, the (2) detected temperature of a temperature sensor installed on the TR exceeds the corresponding maximum permissible temperature, and a predetermined arbitrary setting, for example, (5) Class A TR = (Maximum permissible temperature for Class A) (105°C x 0.97) = Warning temperature 102°C, "Warning temperature 102.0°C", (6) The alarm shut-off coefficient temperature, which is arbitrarily set in advance, is for example 105°C with a value of 1.0, or the alarm temperature shut-off coefficient, which is arbitrarily set in advance, is 1.10, (7) If the detected temperature is for example 132°C, then the alarm temperature shut-off temperature = (Class A maximum allowable temperature 105°C x arbitrarily set coefficient 1.10) = 112.2°C, (8) Automatic shut-off temperature = (Detected temperature 132°C - Alarm shut-off temperature 1 (12.2°C) = 19.8°C, the maximum allowable temperature is 105°C or (9) automatic shutoff rate = 1 - (alarm shutoff temperature 112.2°C / detection temperature 132°C) = 15% until the temperature drops. The order of (11) shutoff is predetermined and arbitrarily set for the relevant distribution boards, switchboards, circuits, terminal load equipment, electrical equipment, etc., which can be shut off without causing problems. By automatically shutting off the electrical equipment, etc., the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance. (13) TR temperature The temperature decreases, and (1) when the DESCON Safety Control System detects the above-mentioned detection temperature of 132°C, the alarm temperature rise rate = (detection temperature 132°C / allowable maximum temperature 105°C) = 121%, and an alert can be sent to the PCs, tablets, smartphones, etc. of the relevant parties, for example, the name of the customer, the name of the building / facility, the location, the name of the light fixture, the power transformer, etc., along with the alarm temperature of 132°C and the alarm temperature rise rate of 121.0%.

[0185] The DESCON safety control system, for example, has the following characteristics for the No. 1 lighting transformer: (1) capacity 200 kVA, (2) maximum current 952 A, (3) thermal relay 3.9 A, (4) alarm load current 780 A, (5) load equipment capacity 164 KW, (6) load factor 82%, (7) the current of the No. 1 lighting transformer, arbitrarily determined in advance, is designed and installed as the alarm load current of 780 A, and (8) if the alarm load current exceeds the arbitrarily set alarm load current of 780 A and load factor 82%, for example, the detection current is 801 A, and the load factor = (detection current 800 A / maximum current 952 A) = 84.0%. (9) The system features a control mechanism that automatically shuts off the 20A of circuit NO. 6 of distribution board NO. 1, for example, a circuit that has been pre-defined in the relevant NO. 1 lighting distribution board, when the detected current of 800A exceeds a pre-set arbitrary 780A, (800A detected current - 780A set current) = 20A, thereby reducing the detected current to 780A. (10) It can be configured to send an alert via PC, tablet, voice, image, email, etc., to relevant parties, for example, the building / facility name, location, name of the relevant distribution board, etc., stating that the alarm current was 801A, the current load factor was 84.0%, and the alarm was shut off.

[0186] The DESCON Safety Control System, for example, has the following characteristics for the No. 1 power transformer: (1) capacity 500 kVA, (2) maximum current 1718 A, (3) thermal relay 4.5 A, (4) alarm load current 1350 A, (5) load equipment capacity 393 KW, (6) load factor 79%, (7) a predetermined arbitrary current of 1350 A for the No. 1 power transformer is designed and installed as the alarm load current, and (8) for example, when the alarm load current of 1350 A and load factor 79% are exceeded, for example, when the detection current is 1430 A and the load factor = (detection current 1450 A / maximum current 1718 A) = 84.4%. (9) When the detected current exceeds a predetermined set value of 1350A, the system automatically shuts off the 100A of circuit NO.6 of distribution board NO.1, for example, a circuit that has been predetermined to shut off, reducing the detected current to 1350A. (10) The system can be configured to send an alert to the relevant person's PC, tablet, voice, image, email, etc., for example, stating that the alarm current is 1450A, the current load factor is 84.4%, and the alarm has been shut off, along with the building / facility name, location, name of the relevant distribution board / distribution board, etc.

[0187] The DESCON Safety Control System reduces the voltage of the power receiving and transforming equipment, for example, the 6600V high voltage of the power company, to, for example, 100V for lighting and 200V for power, by, for example, the NO1-NO5 lighting lances and NO1-NO5 power transformers. The system consists of, for example, the NO1-NO5 lighting distribution panels and NO1-NO5 power distribution panels, which are connected to the main lines. The lighting and power distribution panels are connected to the main lines, and the lighting and power distribution panels are connected to the system main lines. Various electrical equipment, mechanical equipment, control equipment, electrical equipment, load equipment, etc., are connected to the branch lines and consume power to operate.

[0188] The DESCON Safety Control System uses temperature sensors installed in the lighting trusses and power transformers to detect the temperature of the relevant transformer. For example, the maximum permissible temperature for the insulation type of the main electrical equipment in the power receiving and transforming facilities, such as lighting trusses and power transformers, is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H. The TR can be configured to send an alert via voice, image, or email to relevant parties' PCs, tablets, voice, images, email, etc., including the building / facility name, location, name of the relevant light fixture / power transformer, etc., along with a temperature rise rate of 97% to 102°C or 100% to 105°C.

[0189] The alarm temperature shutoff coefficient is set arbitrarily in advance, for example, 105°C with a value of 1.0, or the alarm temperature shutoff coefficient is set arbitrarily in advance, for example, 1.10. (7) If the detected temperature is for example 132°C, the alarm temperature shutoff temperature = (maximum allowable temperature for Class A 105°C x arbitrarily set coefficient 1.10) = 112.2°C. (1) The automatic shutoff temperature = (detected temperature 132°C - alarm shutoff temperature 112.2°C) = 19.8°C. (9) The automatic shutoff rate = 1 - (alarm shutoff temperature 112.2°C / detected temperature 132°C) = 15%, and the order of (11) shutoff is set arbitrarily in advance for the relevant distribution board, switchboard circuits, terminal load equipment, electrical equipment, etc., which can be shut off without causing problems, until the temperature drops to 112.2°C. By automatically shutting off the electrical equipment, etc., the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, and (13) the TR temperature decreases.

[0190] When the DESCON Safety Control System detects the aforementioned temperature of 132°C, it can set up an alert system to send an alert message to the relevant parties' PCs, tablets, smartphones, etc., indicating that the alarm temperature rise rate is (detected temperature 132°C / allowable maximum temperature 105°C) = 121%. The alert message will include, for example, the customer's name, building / facility name, location, the name of the relevant light fixture or power transformer, along with the alarm temperature of 132°C and the alarm temperature rise rate of 121.0%.

[0191] The DESCON Safety Control System can, in the case of the main electrical equipment of the power receiving and transforming equipment, specifically the high-voltage transformers for lighting and power and the low-voltage distribution board equipment for the lighting and power systems, if the temperature detected by a temperature sensor installed on the high-voltage transformer for lighting and power matches, for example, the temperature of the lighting and power transformer, the rate of temperature rise, and automatic shutdown, an alert can be sent to the relevant parties' PCs, tablets, voice, images, emails, etc., including, for example, the building / facility name, location, and the name of the relevant lighting and power transformer.

[0192] Notwithstanding the foregoing, the DESCON Safety Control System can, if the current detected by the current measuring instrument CT of the low-voltage distribution panel for lighting and power in the system of the high-voltage transformers for lighting and power in the power receiving and transforming equipment falls under the conditions described in 7, 7-1, etc., the system can send alerts to the relevant parties via PC, tablet, voice, image, email, etc., including the building / facility name, location, and the name of the relevant lighting / power transformer, etc., for example, regarding the current status of the low-voltage distribution panel for lighting and power, the rate of current rise, automatic shutoff, etc.

[0193] Notwithstanding the foregoing, the DESCON Safety Control System can, if the current detected by the current measuring instrument CT of the low-voltage distribution panel for lighting and power in the high-voltage transformer system of the power receiving and transforming equipment falls under the conditions described in 7, 7-1 above, for example, the system can send alerts via voice, image, etc., to the relevant parties' PCs, tablets, voice, images, email, etc., indicating the status of the low-voltage distribution panel for lighting and power, the current rise rate, automatic shutoff, etc., as well as the building / facility name, location, and the name of the relevant lighting and power transformer.

[0194] Notwithstanding the foregoing, the DESCON Safety Control System will: (1) If the temperature of a high-voltage transformer for lighting and power in a power receiving and transforming facility reaches a certain level due to, for example, high ambient temperature or high load on the low-voltage distribution board in the system of the transformer in question, the system will automatically shut off the transformer in question as described in 10 above, and send an alert via voice, image, etc. to the relevant person's PC, tablet, voice, image, email, etc., including, for example, the building / facility name, location, and the name of the lighting / power transformer in question; or (2) If the current of the lighting / power distribution board in question is shut off as described in 11 above due to high operation of the distribution board, electrical equipment, load equipment, electrical machinery, control equipment, etc. in the system of the low-voltage distribution board equipment, the system will automatically shut off the current in question, including, for example, the building / facility name, location, and the name of the lighting / power transformer in question.

[0195] Notwithstanding the foregoing, the DESCON Safety Control System will: (1) If the temperature of the high-voltage transformers for lighting and power in the power receiving and transforming equipment rises due to, for example, high ambient temperature or high load on the low-voltage distribution board in the system of the transformer in question, the system will automatically shut off the transformer in question as described in 10 above, and send an alert via voice, image, etc. to the relevant person's PC, tablet, voice, image, email, etc., including, for example, the building / facility name, location, and the name of the lighting / power transformer in question; or (2) If the current rises due to high operation of the distribution board, electrical equipment, load equipment, electrical machinery, electrical equipment, mechanical equipment, control equipment, etc. in the system of the low-voltage distribution board equipment, the system will automatically shut off the current of the lighting / power distribution board in question as described in 11 above, and send an alert via voice, image, etc. to the relevant person's PC, tablet, voice, image, email, etc., including, for example, the building / facility name, location, and the name of the lighting / power transformer in question.

[0196] Notwithstanding the foregoing, the DESCON Safety Control System (1) controls and alerts the relevant transformer in the system as described in 10 above when the temperature of the high-voltage transformer for lighting and power in the power receiving and transforming equipment rises before the current in the low-voltage distribution panel. (2) It also transmits the current and operating rate of the relevant distribution panel to the relevant personnel's PC, tablet, voice, image, email, etc., so that the relevant personnel can recognize the temperature status of the relevant transformer and the current and operating status of the low-voltage distribution panel in the system.

[0197] Furthermore, notwithstanding the foregoing, the DESCON Safety Control System (1) controls and alerts the relevant transformer in the system as described in 11 when the current and operating rate of the lighting and power distribution panels rise before the temperature of the high-voltage transformers for lighting and power in the power receiving and transforming equipment. Also, (2) transmits the current and operating rate of the relevant distribution panel to the relevant personnel via PC, tablet, voice / image, email, etc., so that the relevant personnel can recognize the temperature status of the relevant transformer and the current and operating status of the low-voltage distribution panels in the system.

[0198] Similar to the aforementioned building facilities, the economy and industry are expanding globally, informatization is evolving in real time, becoming borderless, and human exchange is progressing. Along with PCs, tablets, and smartphones, the scale of information is expanding, and the quantity and quality of logistics are increasing in Japan and globally. For example, II-1. The scale and quantity of logistics centers in building facilities are growing dramatically, and with the advent of informatization, cloud computing, data centers, material handling facilities, semiconductor factories, etc., as well as inbound tourism, event halls, hotels, terminal buildings, skyscrapers, etc., people's activities are becoming 24 hours a day, activities and labor are becoming more concentrated, robots are providing convenience, and outdoor facilities are appealing with various functions due to their diverse characteristics. In terms of lifestyle, the composition of the population is changing, with an aging population, a declining birthrate, and single-person households, and with the advent of skyscrapers and other high-rise apartment buildings, the number and quantity of items and products that utilize electricity, such as electrical equipment, machinery, electrical appliances, and home appliances, are increasing dramatically, and convenience is improving, as is the case with the aforementioned building facilities, with the advent of 24 hours a day, 365 days a year.

[0199] On the other hand, the number of various electrical accidents is proportionally high. For example, the amount of electricity consumed by buildings and other facilities has increased dramatically and expanded, and there is no time when the power is shut down 24 hours a day. In particular, the high-voltage transformers for lighting and power in the power receiving and transforming equipment and the low-voltage distribution boards for lighting and power in the system, the distribution boards for the main lines and the system, the main lines and electrical equipment, machinery and equipment, terminal load equipment, etc., are all affected.

[0200] Electrical equipment is used in a wide variety of applications, including buildings such as logistics centers, factories, offices, hotels, terminal buildings, apartment complexes, commercial facilities, and assembly halls, as well as in production equipment such as various electrical devices and picking systems, solar power generation, wind power generation, batteries, storage batteries, data centers, computers, power plants, substations, cars, ships, airplanes, trains, and outdoor facilities. Various types of electrical equipment and facilities are manufactured, and proportionally, the number of electrical devices, main lines, panels, control panels, circuits, and connecting devices is increasing. While various measures are taken to address leakage currents and stray currents generated by these electrical devices and facilities, factors such as aging deterioration, equipment burnout, and insulation failures in electrical equipment panels, main lines, circuits, wiring, connecting fittings, and terminal load equipment can lead to electric shocks, leakage currents, and stray currents, which can cause burnout and fire accidents in electrical facilities.

[0201] As mentioned above, safety inspections are conducted in accordance with relevant laws and regulations, such as monthly safety inspections of electrical equipment and annual comprehensive inspections which include insulation measurements, torque tests, and measurements of current values, voltages, etc., with power cuts performed. These inspections are reported in accordance with relevant laws and regulations. However, it is believed that the current situation regarding the occurrence of leakage currents, stray currents, etc., in systems such as buildings, outdoor facilities, various electrical equipment, main lines, panels, control panels, circuits, and connecting devices, as well as various equipment and machinery on each main line, terminal load equipment, process equipment, and various plants, and the actual occurrence of these phenomena in the relevant electrical equipment, terminal load equipment, main lines, and wiring, is still not fully and realistically understood.

[0202] The DESCON Safety Control System, for example, for high-voltage transformers for lighting and power in substations of buildings and outdoor facilities, and for low-voltage lighting and power distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., is as follows: 1. Current and voltage of earth leakage circuit breakers, 2. Type and sensitivity current, 3. Rated sensitivity current, etc. Earth leakage detectors such as ZCTs installed in the main circuit of each of the aforementioned panels, etc., and earth leakage detectors such as ZCTs installed in each circuit of each of the aforementioned panels and control panels, etc., detect leakage current at each panel and each circuit level, (1) For example, the rated sensitivity currents of the high-speed type are 5mA, 10mA, 15mA, 30mA, medium-sensitivity type is 50mA, 100mA, 200mA, 300mA, 500mA, 1000mA, etc., and low-sensitivity type is 3A. (2) Sensitivity levels are selected according to the main application. For example, high sensitivity is used in places with a high risk of electric shock, such as damp places, when protection from electric shock due to live-line contact is required, and when grounding cannot be reliably provided for movable or portable equipment. (3) Medium sensitivity is used in circuits where the equipment is reliably grounded, and in large capacity circuits where high sensitivity types would malfunction. (4) Low sensitivity types include 3A, 5A, 10A, 20A, etc., and are used when medium sensitivity types would malfunction.

[0203] As described above, the DESCON Safety Control System includes, for example, power distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc. (1) Classification by operating limit, such as the type and sensitivity current, for high-speed type rated sensitivity currents of 5mA, 10mA, 15mA, etc. The system has a function to detect and shut off at 30mA. For example, by setting the coefficient of the warning leakage current, which can be arbitrarily set in advance for 5mA to 30mA, to 0.8, for example, 5.0mA = (5.0mA x coefficient 0.8) = 4.0mA, 10.0mA = (10.0mA x coefficient 0.8) = 8.0mA, 15.0mA = (15.0mA x coefficient 0.8) = 12.0mA, and 30.0mA = (30mA x 0.8) = 24.0mA, the leakage current detectors such as ZCTs installed in each of the aforementioned panels and equipment will detect these values ​​and send an alert to the relevant parties via PC, tablet, voice, image, email, etc., including the building / facility name, location, name of the relevant distribution board / switchboard, name of electrical equipment, mechanical equipment, load equipment, etc., along with the warning leakage current, for example, 4.0mA to 24.0mA, and a leakage current coefficient of 80%.

[0204] The DESCON Safety Control System has a function to detect and alert for (1) the type and sensitivity current, such as the rated sensitivity current of high-sensitivity and high-speed types, which can be set arbitrarily in advance, for example, between 5mA, 10mA, 15mA, and 30mA, and is classified by operation limit and sensitivity. By setting the caution leakage current coefficient to 0.8, for example, 5.0 mA = (5.0 mA x coefficient 0.8) = 4.0 mA, 10.0 mA = (10.0 mA x coefficient 0.8) = 8.0 mA, 15.0 mA = (15.0 mA x coefficient 0.8) = 12.0 mA, and 30.0 mA = (30 mA x coefficient 0.8) = 24.0 mA can be detected by leakage current detectors such as ZCTs installed in each of the aforementioned panels and equipment, and an alert can be sent to the relevant parties' PCs, tablets, voice, images, emails, etc., including, for example, the building / facility name, location, name of the relevant distribution board / switchboard, name of electrical equipment, mechanical equipment, load equipment, etc., along with a caution leakage current of, for example, 4.0 mA to 24.0 mA and a leakage current coefficient of 0.8.

[0205] The cautionary leakage current coefficient, for example, reaches the leakage current value specified in the rated sensitivity current, and when the leakage circuit breaker trips and shuts off the relevant distribution board, switchboard, electrical equipment, machinery, load equipment, etc., it can result in a loss of time during which the power supply to the aforementioned equipment in the building, outdoor facilities, etc., stops working. Furthermore, it is unclear whether the leakage current is within the permissible range or an abnormal leakage current in each panel, control equipment, machinery, electrical equipment, terminal load equipment, etc. of the electrical equipment system, so it is generally considered that productivity and safety are not always guaranteed.

[0206] The caution leakage current coefficient depends on the characteristics of the building and outdoor facilities in question, their functional usage, and factors such as whether they are production facilities like data centers, factories, and large logistics facilities, or large commercial facilities, skyscrapers, terminal buildings, hotels, offices, and apartment buildings that accommodate a large number of people, or residential buildings and apartment buildings that prioritize safety and comfort. However, the prescribed caution leakage current coefficient may be arbitrarily determined in advance, for example, between 0.8 and 0.9.

[0207] As described above, the DESCON Safety Control System is used for, for example, lighting and power distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc. (1) For example, the high-speed type rated sensitivity current of 5mA, 10mA, 15mA, etc. The system has a function to detect and shut off at 30mA. For example, by setting the coefficient of the warning leakage current, which can be arbitrarily set in advance for 5mA to 30mA, to 0.8, the leakage circuit breaker installed in each of the aforementioned panels and equipment will detect 5.0mA = (5.0mA x coefficient 0.8) = 4.0mA, 10.0mA = (10.0mA x coefficient 0.8) = 8.0mA, 15.0mA = (15.0mA x coefficient 0.8) = 12.0mA, and 30.0mA = (30mA x 0.8) = 24.0mA, and send an alert to the relevant parties via PC, tablet, voice, image, email, etc., including the building / facility name, location, name of the relevant distribution board / switchboard, electrical equipment, mechanical equipment, load equipment name, etc., along with the warning leakage current, for example, 4.0mA to 24.0mA, and a leakage current coefficient of 80%.

[0208] The DESCON Safety Control System, as described above, has a function to detect and shut off currents at high-speed rated sensitivity currents of 5mA, 10mA, 15mA, and 30mA in, for example, power distribution boards, switchboards, control panels, electrical equipment, machinery, terminal load equipment, etc., by setting the coefficient of the caution leakage current, which can be set arbitrarily in advance for 5mA to 30mA, to 0.95 or the specified coefficient of 1.0, for example, 5.0mA = (5.0mA x coefficient 0.95) = 4.75mA or (5.0mA x coefficient 1.0) = 5.0mA, 10.0mA = (10.0mA x coefficient 0.95) = 9.5mA or (10.0mA x coefficient 1.0) = 10.0mA When a leakage circuit breaker installed in each of the aforementioned panels and equipment detects a leakage current of 15.0 mA = (15.0 mA x coefficient 0.95) = 14.25 mA, or (15.0 mA x coefficient 1.0) = 15.0 mA, 30.0 mA = (30 mA x 0.95) = 28.5 mA, or (30.0 mA x coefficient 1.0) = 30.0 mA, it can be configured to send an alert to the relevant parties via PC, tablet, voice, image, email, etc., including the building / facility name, location, name of the relevant distribution board / switchboard, name of electrical equipment, mechanical equipment, load equipment, etc., along with the alarm-tripped leakage current, for example, 4.75 mA or 5.0 mA to 28.5 mA or 30 mA, with a leakage current coefficient of 80%.

[0209] The DESCON Safety Control System, as described above, has a function to detect and shut off currents at rated sensitivity currents of 50mA, 100mA, 200mA, 300mA, 500mA, and 1000mA for main applications such as existing and new installations of lighting and power distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, and terminal load equipment, etc., based on the type and sensitivity current, classification by operating limit and classification by sensitivity, such as the rated sensitivity currents of medium sensitivity and high-speed types, etc., which can be set arbitrarily in advance, for example from 50mA to 1000mA. It also has a function to detect and alert for leakage current, for example by setting a coefficient of 0.85, which can be set arbitrarily in advance, for example from 50mA to 1000mA. Note: Set the leakage current coefficient to 0.85. For example, 50 mA = (50 mA x coefficient 0.85) = 42.5 mA, 100.0 mA = (100.0 mA x coefficient 0.85) = 85.0 mA, 200.0 mA = (200.0 mA x coefficient 0.85) = 1700.0 mA, 300.0 mA = (300 mA x 0.85) = 255.0 mA. Leakage circuit breakers installed in each of the aforementioned panels and equipment can detect currents such as 300.0 mA = (300 mA x 0.85) = 255 mA, 500 mA = (500 mA x coefficient 0.85) = 425 mA, and 1000 mA = (1000 x 0.85) = 850 mA. These breakers can then send alerts via voice, images, email, etc., to the PCs, tablets, smartphones, etc. of the relevant parties, including the building / facility name, location, name of the relevant distribution / switchboard, name of the electrical equipment, machinery, load equipment, etc., along with a warning leakage current of, for example, 42.5 mA to 850.0 mA and a leakage current coefficient of 0.8.

[0210] The DESCON Safety Control System, as described above, for example, in the distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., (1) for example, the above-mentioned medium-sensitivity, high-speed type rated sensitivity currents of 50mA, 100mA, 200mA, 300mA, 500mA, 1000mA, for example, the coefficient of the caution leakage current which is arbitrarily set in advance for 50mA to 1000mA is set to 0.95 or the specified coefficient of 1.0, for example, 50.0mA = (50.0mA coefficient 0.95) = 47.55mA or (50.0mA coefficient 1.0) = 50.0mA, 100.0mA = (100.0mA coefficient 0.95) = 95.05mA or (100.0mA coefficient 1.0) = 100.0 mA, 200.0 mA = (200.0 mA x coefficient 0.95) = 190.0 mA, or (200.0 mA x coefficient 1.0) = 200.0 mA, 300.0 mA = (300 mA x 0.95) = 285.0 mA, or (300.0 mA x coefficient 1.0) = 300.0 mA, 500 mA = (500 mA x coefficient 0.95) = 475 mA, 1000 mA = (1000 x 0.95) = 950 mA, or (1000.0 mA x coefficient 1.0) = 100 When a leakage current of 0.0 mA or similar is detected by a ZCT or other leakage current detector installed in each of the aforementioned panels and equipment, an alert can be sent via voice, image, email, etc., to the PC, tablet, or smartphone of the person in charge, including, for example, the building / facility name, location, name of the relevant distribution board / switchboard, name of the electrical equipment, mechanical equipment, load equipment, etc., along with the alarm-shutting leakage current, for example, 47.55 mA or 50.0 mA to 950.0 mA or 1000.0 mA, with a leakage current coefficient of 80%.

[0211] As described above, the DESCON Safety Control System, for example, in the case of (1) the main lines of a system connected to the high-voltage transformers for lighting and power, the main lines connected to the low-voltage distribution boards for lighting and power, the circuits of the distribution boards for lighting and power, the main lines and control panels for each system, electrical equipment, mechanical equipment, terminal load equipment, etc., which are designed and constructed according to their main uses, such as classification by operation limit and classification by sensitivity, based on the type and sensitivity of the existing and new installations, the main lines of a system connected to the low-voltage distribution boards for lighting and power, the circuits of the distribution boards for lighting and power, the main lines and control panels for each system, electrical equipment, mechanical equipment, terminal load equipment, etc., when leakage current or stray current occurs from the equipment, main lines, circuits, connecting devices, etc., due to deterioration over time, etc. As described above, for example, a ZCT leakage current detector pre-installed on the control panel of a main power line for lighting and power, a distribution board, a switchboard, an electrical equipment, a mechanical equipment, terminal load equipment, etc., detects leakage current, and sends an alert via voice, image, email, etc., to the relevant person's PC, tablet, smartphone, etc., detailing the automatic shutdown of the relevant equipment, including the name of the main power line for lighting and power, a distribution board, a switchboard, an electrical equipment, a mechanical equipment, a terminal load equipment, etc., along with the customer name, building facility, transformer distribution board, system distribution board, electrical equipment, load equipment, etc. This alert can be automatically printed on the relevant person's PC, tablet, smartphone, etc., and can be compiled into a format that can be used for hourly, daily, weekly, monthly, and yearly reports.

[0212] The current and voltage of a ground fault circuit interrupter are, for example, as follows: JIS C8201-2-2 Ground fault circuit interrupter electrical system, voltage and current type and sensitivity current are as follows.

[0213] Internal Wiring Regulations 1375-2 specifies the selection of the sensitivity current for earth leakage circuit breakers. This is in accordance with JIS C8201-2-2 Earth Leakage Circuit Breakers.

[0214] The rated sensitivity current is, for example, as follows, according to JIS C8201-2-2 Earth leakage circuit breaker.

[0215] The DESCON Safety Control System includes, for example, a ZCT that detects leakage current installed in each panel such as a lighting distribution board, switchboard, control panel, electrical equipment, mechanical equipment, terminal load equipment, etc., (1) regardless of the rated sensitivity current of the high-sensitivity, high-speed type, etc., such as 5mA, 10mA, 15mA, 30mA, etc., which is classified by type and sensitivity current by operating limit and sensitivity, (1) for example, the corresponding distribution board NO1 to NO8 of the low-voltage distribution board NO1 to NO3 of the lighting high-voltage transformer system, which is connected to low-voltage distribution board NO1 by the main line, Among the circuits NO.1 to NO.12, the heat-insulated sliding door of circuit NO.1 30A is equipped with a high-sensitivity type leakage circuit breaker with a rated sensitivity current of 30mA. The ZCT leakage current detector installed in each of the aforementioned panels can detect, for example, 15mA emanating from the heat-insulated sliding door of the system of the relevant circuit and send an alert via voice, image, email, etc., to the PCs, tablets, and smartphones of the relevant parties, indicating that the current is emanating from the heat-insulated sliding door of circuit NO.1 in the low-voltage lighting distribution panel NO.1 and distribution panel NO.1.

[0216] The DESCON Safety Control System includes, for example, power distribution boards, switchboards, control panels, electrical equipment, mechanical equipment, terminal load equipment, etc., and the ZCTs that detect leakage current installed in each panel, (1) regardless of the rated sensitivity current of the medium-sensitivity type, high-speed type, etc., such as 50mA, 100mA, 200mA, 300mA, 500mA, 1000mA, etc., which are classified by operation limit and sensitivity, and (1) for example, the low-voltage distribution boards NO1 to NO3 of the power high-voltage transformer system, for example, the distribution boards NO1 to NO9 connected to low-voltage distribution board NO1 by the main line, for example, the corresponding NO1 to NO1 distribution board NO1 to NO9 Within the O10 circuit, the X-axis motor of the material handling system 1 of circuit NO1 75A is equipped with a leakage circuit breaker of medium sensitivity type with a sensitivity current of 50mA. A leakage current / stray current detector installed in each of the aforementioned panels detects, for example, 30mA of current originating from the X-axis motor of the material handling system 1 of the system in question, and can send an alert via voice, image, email, etc., to the PCs, tablets, and smartphones of the relevant parties, indicating that the current is originating from the X-axis motor of the material handling system 1 of circuit NO1 in the low-voltage power distribution panel NO1 and distribution panel NO1.

[0217] As described above, the DESCON Safety Control System can be configured such that, for example, a ZCT (Zero Current Transformer) installed in each panel such as a lighting distribution board, switchboard, control panel, electrical equipment, mechanical equipment, and terminal load equipment detects leakage current and stray current, and when a leakage current or stray current occurs in the relevant distribution board, switchboard, circuit, electrical equipment, or terminal load equipment, the ZCT detects the leakage current in the relevant distribution board, switchboard, control panel, electrical equipment, mechanical equipment, or terminal load equipment, and sends an alert via voice, image, email, etc. to the PC, tablet, or smartphone of the person in charge, enabling the identification of the leakage current and the improvement of the leakage current.

[0218] As described above, the DESCON Safety Control System can be configured such that a ZCT (Zero Current Transformer) installed in each panel such as a power distribution board, switchboard, control panel, electrical equipment, mechanical equipment, and terminal load equipment detects leakage current and stray current, and (1) detects the leakage current in the relevant distribution board, switchboard, circuit, electrical equipment, or terminal load equipment within a specified mA range, such as 50mA to 1000mA for a medium-sensitivity, high-speed type, for example, rated sensitivity current, based on the type and sensitivity current classification by operating limit and sensitivity classification, and sends an alert via voice, image, email, etc. to the PC, tablet, or smartphone of the person in charge, enabling identification of the leakage current and improvement of the leakage current.

[0219] As described above, the DESCON Safety Control System can, for example, (1) when the detected temperature of a high-voltage transformer (Type A to H) for lighting and power in a power receiving and transforming facility reaches the aforementioned temperature rise rate such as the caution temperature or alarm temperature, send an alert via voice, image, email, etc. to the PC, tablet, smartphone, etc. of the person in charge, or when the aforementioned predetermined alarm cutoff temperature, boiling point cutoff temperature, etc. is reached or exceeds, it will automatically shut off according to a predetermined cutoff order, and send an alert via voice, image, email, etc. to the PC, tablet, smartphone, etc. of the person in charge that the distribution board, electrical equipment, machinery, terminal load equipment, etc. of the relevant distribution board system have been automatically shut off in a predetermined order.

[0220] Furthermore, the system can detect the current in the low-voltage lighting and power distribution panels of the high-voltage transformer system. For example, if the current reaches a designed alarm load current or a pre-set warning current value, the system can send an alert via voice, image, or email to the relevant PC, tablet, or smartphone, indicating the load factor of the distribution panel. If the current exceeds the warning current value and reaches or exceeds a pre-set alarm current value, the system can send an alert via voice, image, or email to the relevant PC, tablet, or smartphone, indicating that the system has automatically shut off the current, as pre-set.

[0221] As described above, the DESCON Safety Control System has the following functions: (1) If the detected temperature of a high-voltage transformer (Type A to H) for lighting and power, which is part of the power receiving and transforming equipment, reaches or exceeds the temperature rise rate of the aforementioned warning temperature, alarm temperature, etc., an alert is sent via voice, image, email, etc. to the PC, tablet, smartphone, etc. of the person in charge; if the aforementioned alarm cutoff temperature, boiling point cutoff temperature, etc., which are set in advance, the system automatically shuts off according to a predetermined cutoff order, and sends an alert via voice, image, email, etc. to the PC, tablet, smartphone, etc. of the person in charge that the distribution board, electrical equipment, machinery, terminal load equipment, etc. of the relevant distribution board system have been automatically shut off in a predetermined order; and (2) High-voltage transformers for lighting and power in the power receiving and transforming equipment and the transformers The function of automatically shutting off the distribution board if the current value of the low-voltage distribution board for lighting and power, which is connected to the main line of the device, reaches a predetermined warning current value, a predetermined warning current value, or a predetermined warning current value of the distribution board, or exceeds the alarm current value, and sending an alert about the load value to the relevant person's PC, tablet, or smartphone via voice, image, email, etc., (3) the priority of automatic shutdown when the warning temperature, alarm temperature of the high-voltage transformer of the substation equipment or a predetermined warning current value or alarm current value of the low-voltage distribution board, and sending an alert about the load value via voice, image, email, etc., to the relevant person's PC, tablet, or smartphone, (4) the configuration and function of a digital system that quickly detects the warning temperature, alarm temperature of the high-voltage transformer or the warning current value or alarm current value of the distribution board, and safely protects the transformer and distribution board of the substation equipment.

[0222] <An example of a wiring diagram for the high-voltage transformers for lighting and power in the power receiving and transforming equipment, the low-voltage distribution boards for lighting and power, the lighting and power distribution boards in the system, the lighting and power circuits in the system, and the electrical equipment, machinery, terminal load equipment, etc. for the lighting and power systems> and <An example of the configuration of the DESCON safety control system related to the lighting distribution boards and power distribution boards> The program for an alarm current type lighting transformer, in which the detected current detected by the CT rises above the warning alarm current of 780A, and the automatic shutoff current = (1350A x 1.10) = 1485A or more is set arbitrarily in advance with an alarm shutoff coefficient of 1.10 for the warning alarm current of 780A, is as follows.

[0223] Alternatively, in the caution current safety type, (1) the capacity of the lighting TR1 is 200 kVA, (2) the maximum current is 952 A, and the overload prevention (3) alarm load current is 780 A, and proportionally (4) the TR load equipment capacity is 164 KW, which is entered into the database. For example, if the current detected by the CT ammeter installed on the lighting TR is an overcurrent for safety protection, (5) the alarm current is exceeded by the CT detection, (6) although the alarm load current is 780 A, (7) a caution current coefficient of 0.97 is set arbitrarily in advance, so (8) the caution alarm current = (alarm load current 780 A x caution current coefficient 0.97) = 756 A, the safety level is high, the load rate of the TR decreases, and an alert is sent to the PC, tablet, smartphone, etc. of the relevant person by voice, numerical value, image, etc., notifying them of the relevant information, such as the customer name, building name, facility name, location, type of lighting, power, capacity, electrical equipment of the system terminal, load equipment name, etc. Furthermore, the alert notification sound can be configured to continuously transmit until the relevant party confirms and resets it, thus preventing any oversight by those involved.

[0224] Furthermore, the DESCON safety control system automatically shuts off the system when the detected current rises, with a maximum current of 952A, predetermined arbitrarily set, for example, with a maximum current coefficient of 0.9, a surplus rate of 10%, and an alarm shutoff current of 857A or more. If the detected current is (12) 938A, then (13) an automatic shutoff current of (938A) - (857A) = 81A is automatically shut off, and (14) this is converted to the equipment automatic shutoff capacity kVA = ((current 81A x voltage 210V x power factor 1.0) / 1000A = 17kVA). The automatic shutoff equipment capacity is 17kVA, and (15) an automatic shutoff rate of 8.6% is automatically shut off, determining the order of shutoff for terminal load equipment and electrical devices of the main distribution board and additional distribution board, and automatically shutting off terminal load equipment and electrical devices that can be shut off without causing problems, as well as the relevant board and circuit.

[0225] The DESCON Safety Control System can be configured to send alerts such as customer name, building name, low-voltage distribution board, switchboard, control panel, circuit, terminal electrical equipment, terminal load equipment, etc., to the PCs, tablets, smartphones, etc. of relevant parties upon automatic shutdown, and to send voice, image, temperature values, etc., to the relevant parties' PCs, tablets, smartphones, etc., and to continue sending until the relevant parties confirm that the alert has been sent, providing a means for relevant parties to check safety in real time after the automatic shutdown and to take subsequent actions.

[0226] The DESCON Safety Control System (1) The automatic shutoff is for various facilities and electrical equipment such as goods and manufacturing using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting and elevators, etc., data centers for important data and research test results, infrastructure substations, etc., and transportation trains, ships, etc. (2) When terminal equipment such as The DESCON Safety Control System, which consists of remote devices for each system, such as distribution boards, main lines, circuits, and breakers, and a cloud server and LAN, has a function to shut down the system by an emergency response protection program via remote devices for each system, such as a distribution board, switchboard, or control panel, which transmits a signal to a protection stop device, thereby safely protecting the control and other terminal equipment, either collectively or selected, and can be configured to include means for controlling the stop function in a normal and safe manner, as well as means for confirming the stop signal.

[0227] The following program automatically shuts off a current of 857A or more when the detected current detected by the CT of a warning current safety type light transformer exceeds the warning alarm current of 756A and a maximum current coefficient of 0.9 for a pre-set maximum current of 952A.

[0228] This document describes the configuration and function of the substation equipment (hereinafter referred to as "cubicle") in the DESCON Safety System, specifically focusing on A. lighting and power transformers, B. low-voltage lighting and power distribution panels, and C. distribution panels and terminal load equipment.

[0229] For example, the voltage of three lighting transformers (hereinafter referred to as TR) and four power transformers (hereinafter referred to as TR) in the building's power receiving and transforming equipment, the capacity of the TRs (class A type), thermal relays, circuit current, equipment capacity, etc., the configuration of the main distribution board + additional distribution board, and the k. program attention coefficient and attention current of the system, the automatic shutoff and automatic shutoff distribution boards for k1 to K6, and the circuits are as follows.

[0230] The capacities of the aforementioned power transformers NO1 to NO4, d. maximum load current, f. thermal relay alarm setting value, g. load current value, and the i. maximum load factor and k. safe allowable current of the system are as follows:

[0231] (1) The overcurrent protection thermal relay for the transformer Tr1.3φ500kVA of power panel NO. 1 of the low-voltage distribution panel has, for example, a 1500 / 5A CT for the relevant circuit installed on the secondary side, and the external alarm output is set to, for example, 4.5A.

[0232] (1) Alarm load current value = (4.5A × 1500) / 5A = 1350A, (2) h. Load equipment capacity h1 = (√3 × h × b × e) / 1000 = (1.732 × 1350A × 210V × 0.8) ÷ 1,000 = 393kW, (3) Load factor = (393kW / 500kVA) = 79%.

[0233] The safety features of conventional transformers include, for example, c. a transformer capacity of 500 kVA, d. a maximum current value of 1718 A, e. a secondary output of 5 A, f. an alarm current value of 4.5 A, g. an alarm load current of 1350 A, and j. a function to activate an alarm buzzer at the power receiving and transforming equipment site at a load factor of 79% and 1323 A.

[0234] The DESCON Safety Control System, for example, in the case of a permanent distribution board with (1) an alarm current of 1350A, (2) a load equipment capacity of 393kW, and (3) a load utilization rate of 79%, detects a pre-set alarm current of 1350A or a caution coefficient of 0.98, for example (5) (alarm current 1350A x caution coefficient 0.98) = 1323A as a caution current to enhance the safety function of the transformer, and sends an alert to the relevant person's PC, tablet, smartphone, etc., with information such as the customer name, building name, facility name, location, transformer name, etc., and continues to send alerts such as voice, numerical values, and images for each system until the relevant person confirms the alert and resets it.

[0235] For example, in power receiving and transforming equipment for buildings, outdoor facilities, etc., with a power transformer capacity of 500 kVA and a maximum current of 1718 A, the safety protection function of the low-voltage power distribution panel of the power receiving and transforming equipment might be, for example, a thermal relay of 3.9 A and an alarm load current of 1350 A for a security setting of 5.0 A. With a load capacity of 393 kW and a load factor of 79%, (1) the TR capacity of NO. 1 in 4-1 below is 500 kVA, and the capacity of the low-voltage power distribution board is 500 kVA. For example, the capacity of the system distribution board is 320.5 kVA for the 6 sides of the main distribution boards NO. 1 to NO. 6 + 179.7 kVA for the 3 sides of NO. 7 to NO. 9 = 500 kVA, with a load factor of 73% and a surplus rate of 27%. (2) In addition to the main distribution boards mentioned above, the system distribution boards of the relevant distribution board utilize the functions and uses of the building facilities or outdoor facilities such as power receiving and transforming equipment and cubicles to improve efficiency. In addition to the main distribution boards of the low-voltage lighting distribution board system, system terminal electrical equipment such as additional distribution boards and shelf load equipment are operating at full capacity, and the amount of power exceeds the alarm current of 1350 A, for example, the maximum current may be 1718 A, and the TR capacity may be 500 kVA or more.

[0236] The configuration of the permanent and additional low-voltage power distribution panels and system is as follows: (1) Permanent material handling control panels (NO. 1 to NO. 10, 58.1 kVA) x 5 + conveyor control panel (30.0 kVA) = 320.5 kVA, load factor 64%, and (2) Additional material handling control panels (NO. 6 to NO. 8, 59.9 kVA) x 3 = 179.7 kVA, load factor 36%, so (3) the above control panels 320.5 kVA + 179.7 kVA = 500.2 kVA, (4) maximum current is 1718 A, (5) alarm current is 1350 A, (6) load capacity is 363 kW, and (7) load factor is 79%.

[0237] The overcurrent protection thermal relay for transformer Tr1.3φ500kVA of low-voltage power distribution panel No. 1 is installed on the secondary side of the 1500 / 5A CT of the relevant circuit, and for example, a 4.5A thermal relay is used to (1) trigger an alarm current of 1350A and a maximum load factor of 79%, regardless of (1)-1. For example, depending on the operational status of the business, to improve efficiency, the above-mentioned low-voltage distribution board for lighting and power may be configured with a main distribution board capacity of 320.5 kVA + an additional distribution board capacity of 179.7 kVA for backup use, resulting in an electrical capacity of 500.0 kVA and a load factor of 100%. However, the demand rate for both lighting and power is not always 100%, and is usually around 70-80% for lighting and 65-75% for power. Even with the above-mentioned additional distribution board capacity increased to a load factor of 100%, the possibility of power consumption being 100% is low. However, depending on the operational status of the terminal equipment, the above-mentioned (1) alarm current of 1350 A, (2) load equipment capacity of 393 kW, and (3) load factor of 79% may be exceeded, reaching a maximum load factor of 100% with a maximum current of 1718 A and (5) TR ​​capacity of 500 kVA, resulting in a TR capacity of 500 kVA.

[0238] The DESCON Safety Control System's alarm current alarm type includes (1) a power TR1 capacity of 500 kVA, (2) a maximum current of 1718 A, and (3) an alarm load current of 1350 A for overload prevention. Proportionately, (4) the TR load equipment capacity of 393 kW is entered into the database. For example, a CT ammeter installed on a lighting TR detects whether the detected current is less than or greater than (5) the alarm load current of 1350 A due to safety protection overcurrent, etc. If it is exceeded, for example, the alarm load current is treated as a warning current, and an alert is sent to the relevant person's PC, tablet, smartphone, etc., containing information such as the customer name, building name, facility name, location, type and capacity of lighting and power, electrical equipment at the system terminal, and load equipment name, via voice, numerical data, images, etc. Furthermore, the alert notification sound will be continuously transmitted until the relevant party confirms and resets it to prevent any failure to confirm by the relevant party, and the detection current will rise to, for example, (6) the warning current will rise to, (7) the alarm shut-off coefficient will be, for example, 1.10, (8) the alarm shut-off current will be = (warning alarm current 1350A x alarm shut-off coefficient 1.10) = 1485A, (9) the maximum current load coefficient for the maximum current of 1718A will be = (alarm shut-off current 1485A / maximum current 1718A) = 0.86, (10) the surplus rate will be 14%, (11 ) If the alarm shutoff current is 1485A or more, for example (12) if the detection current is 1585A, then (13) the automatic shutoff current = (detection current 1585A) - (alarm shutoff current 1485A) = 95A will be automatically shut off. For the relevant equipment capacity, (14) the automatic shutoff capacity is 27.6kVA, and (15) an automatic shutoff rate of 6.0% will be automatically shut off. The order of shutoff for terminal load equipment, electrical equipment, etc. of the main distribution board and expansion distribution board will be determined, and terminal load equipment, electrical equipment, etc. that can be shut off without causing problems, along with the relevant board and circuit, etc., will be automatically shut off.

[0239] The DESCON Safety Control System can be configured to send alerts to the PCs, tablets, smartphones, etc. of relevant parties regarding the automatic shutdown, including customer names, building names, low-voltage distribution boards, switchboards, control panels, circuits, terminal electrical equipment, terminal load equipment, etc., via voice, images, temperature readings, etc., and to continue sending alerts until the relevant party confirms receipt of the alert. This provides a means for relevant parties to confirm safety in real time after the automatic shutdown and take appropriate action.

[0240] The DESCON Safety Control System includes: (1) the automatic shutoff of the aforementioned equipment and electrical devices for goods and production using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting, elevators, etc., data centers for important data, research and test results, etc., infrastructure substations, etc., transportation trains, ships, etc.; (2) the program control and shutoff of terminal equipment and electrical devices, etc., when the terminal equipment is automatically shut off according to a predetermined program; (3) the distribution panel The DESCON Safety Control System, which consists of distribution boards, control panels, main lines, circuits, breakers, etc., with system-specific remote devices, a cloud server, LAN, etc., has a function to shut down the system by program, which is controlled by an emergency response protection program via system-specific remote devices, a cloud server, LAN, etc., and transmits a signal from the remote device of the relevant distribution board, distribution board, control panel, etc. to the protection stop device, thereby safely protecting the control and other terminal equipment, etc., in a group or selected manner, and is characterized by a means for controlling the stop function to stop normally and safely, and a means for confirming the stop signal.

[0241] In a power transformer with an alarm current alarm type, if the detected current detected by the CT rises above the warning alarm current of 1350A, the automatic shutoff current = (1350A x 1.10) = 1485A or more is automatically shut off using a pre-set alarm shutoff coefficient of 1.10 for the warning alarm current of 1350A.

[0242] Alternatively, for a warning current safety type, (1) the power TR1 capacity is 500 kVA, (2) the maximum current is 1718 A, and for overload prevention, (3) the alarm load current is 1350 A, and proportionally, (4) the TR load equipment capacity is 393 KW, which are entered into the database. For example, if the detected current is detected by a CT ammeter installed on the lighting TR, (5) the alarm current is exceeded by CT detection due to an overcurrent for safety protection, etc., and (6) the alarm load current of 1350 A is arbitrarily set in advance. For example, based on the set (7) attention current coefficient of 0.96, the (8) attention alarm current = (alarm load current 1350A x attention current coefficient 0.96) = 1296A indicates a high level of safety, a decrease in the load factor of the TR in question, and an alert is sent to the relevant person's PC, tablet, smartphone, etc., notifying them of the relevant information, such as the customer name, building name, facility name, location, type and capacity of lighting and power, electrical equipment of the system terminal, load equipment name, etc., via voice, numerical data, image, etc. Furthermore, the alert notification sound can be set to continue sending until the relevant person confirms and resets it, providing a means to prevent the relevant person from overlooking the notification.

[0243] Furthermore, the DESCON safety control system automatically shuts off the system when the detected current rises, based on a predetermined maximum current of 1718A, for example, (9) a maximum current coefficient of 0.7, (10) a surplus rate of 30%, and (11) an alarm shutoff current = (maximum current 1718A x maximum current coefficient 0.86) = 1477A or higher. (12) If the detected current is 1610A, (13) the automatic shutoff current = (detected current 1610A) - (alarm shutoff current 1477A) = 133A is automatically shut off. The 133A that is automatically shut off is (14) converted to the equipment automatic shutoff capacity kVA = (current 133A x voltage 210V x power factor 0.8) / 1000A = 22kVA, and the automatic shutoff equipment capacity is 22kVA. (15) An automatic shutoff rate of 8.2% is automatically shut off, and the order of (15) the shutdown of terminal load equipment, electrical equipment, etc. of the main distribution board and expansion distribution board is determined, and terminal load equipment, electrical equipment, etc. that can be shut off without causing problems, as well as the relevant board and circuit, etc. are automatically shut off.

[0244] The DESCON Safety Control System can be configured to send alerts to the PCs, tablets, smartphones, etc. of relevant parties regarding the automatic shutdown, including customer names, building names, low-voltage distribution boards, switchboards, control panels, circuits, terminal electrical equipment, terminal load equipment, etc., via voice, images, temperature readings, etc., and to continue sending alerts until the relevant party confirms receipt of the alert. This provides a means for relevant parties to confirm safety in real time after the automatic shutdown and take appropriate action.

[0245] The DESCON Safety Control System (1) The automatic shutoff is for various facilities and electrical equipment such as goods and manufacturing using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting and elevators, etc., data centers for important data and research test results, infrastructure substations, etc., and transportation trains, ships, etc. (2) When terminal equipment such as The DESCON safety control system, which consists of remote devices for each system, such as distribution boards, main lines, circuits, and breakers, and a cloud server and LAN, can be configured to have a function to shut down the system by an emergency response protection program via remote devices for each system, such as a distribution board, switchboard, or control panel, which transmits a signal to a protection stop device, thereby safely protecting the control and other terminal equipment, either collectively or selected, and can be configured to have a means for controlling the stop function in a normal and safe manner, as well as a means for confirming the stop signal.

[0246] In a warning current safety type light transformer, if the detected current detected by the CT rises above the warning alarm current of 1296A, the automatic shutoff current = (maximum current 1718A x 0.86) = 1477 or higher is automatically shut off, based on a pre-set maximum current of 1718A with a maximum current coefficient of 0.86.

[0247] The heat resistance characteristics of transformers (hereinafter referred to as "transformers") in power receiving and transforming equipment are as follows:

[0248] Transformers are classified into the heat resistance classes shown in Table 2, according to the heat resistance characteristics of the insulating material used.

[0249] Insulating materials include (1) insulating oil, (2) SF6 gas, (3) kraft paper, (4) pressboard, (5) mica, (6) glass fiber, (7) epoxy resin, (8) silicone resin, and (9) alkyd resin, and the maximum permissible temperature for (1) insulating oil to (9) alkyd resin is specified. Furthermore, using the above-mentioned insulating materials, oil-filled transformers are assigned heat resistance class A, while molded transformers are assigned classes B, F, and H.

[0250] When a transformer is used under standard operating conditions, it is designed so that the winding temperature rise limit (the limit of the difference between the winding temperature and the ambient temperature) is not exceeded, and the temperature of each part of the insulation does not exceed the maximum allowable temperature for its heat resistance class. However, when the ambient temperature exceeds 40°C, or due to excessive overload operation, the maximum allowable temperature may be exceeded.

[0251] The lifespan of a transformer is most significantly affected by its maximum temperature; therefore, prolonged continuous operation exceeding the maximum permissible temperature will shorten the transformer's expected lifespan of 30 years. Standard operating conditions are as follows:

[0252] The transformer environment and configuration are as follows:

[0253] (1) To be used in locations below an altitude of 1,000m. (2) Ambient temperature: Indoor use -5°C to +40°C, Outdoor use -20°C to +40°C. The average daily temperature should not exceed 35°C, and the average annual temperature should not exceed 20°C. (3) Voltage waveform of the circuit: The voltage waveform of the circuit to which the transformer is connected should be approximately sinusoidal. (4) Voltage balance of the three-phase circuit: The three-phase circuit to which the three-phase transformer is connected should be approximately balanced. (5) Reference winding temperature: Since the resistance value changes with the winding temperature, this temperature is defined as the reference temperature for calculating characteristic values ​​such as load loss and short-circuit impedance.

[0254] The heat resistance class and temperature of the insulating material for TR transformers in power receiving and transforming equipment is specified in the Japan Electrical Manufacturers' Association standard number: JEM 1310:2001. The temperature rise limit and reference winding temperature (heat resistance class H) for dry-type transformers is 140K.

[0255] The reference winding temperature is defined as the temperature at which the resistance value changes with winding temperature, and is used as a reference temperature for calculating characteristics such as load loss and short-circuit impedance.

[0256] 6kV oil-filled transformer for power distribution (JIS C 4303 1999), oil-filled reactor (JIS 4902 2003), 6kV molded transformer for power distribution (JIS C 4306) TR (1) The boiling point of the insulating oil is said to be around 290°C to 340°C.

[0257] The program for automatically shutting off the distribution board, circuits, terminal electrical equipment, and load equipment of a system based on the detected temperature, using, for example, the voltage of three lighting transformers (hereinafter referred to as TRs) and four power transformers (hereinafter referred to as TRs) in the building's power receiving and transforming equipment, TR capacity, thermal relays, circuit current, equipment capacity, etc., is as shown in the diagram.

[0258] In the aforementioned (1) lighting TR200kVA, for example, in the low-voltage lighting distribution panel system, the main distribution panel NO1 has 25.0kVA x NO4 has 4 sides + NO5 has 20kVA + NO6 has 25.0kVA, and the additional NO7 has 27.5kVA + NO8 has 27.5kVA, so (1) main distribution panel capacity 145kw + additional distribution panel 55kw = distribution panel capacity 200kVA. In the kVA configuration, (2) the maximum current is 952A, the (3) alarm current of the safety protection thermal relay is 780A, (3) proportionally the TR load equipment capacity is 164kW and the load factor is 82%, (4) the capacity of the main + additional distribution board is 200kVA, which is 100% of the TR capacity of 200kVA, but the (5) load equipment capacity of the thermal relay is (6) 82% of 164kVA.

[0259] When the power capacity of the low-voltage lighting distribution board exceeds 100% or the capacity of the system terminal load equipment is increased by adding terminal load equipment, the distribution board of the equipment in question will be increased to 100% or more of the capacity of the TR of the system, which has a capacity of 200 kVA and a maximum current of 952 A. When the terminal load equipment is operated by the installation and addition of the original distribution board, (4) for example, the TR capacity may exceed 200 kVA and the maximum allowable temperature of insulation type A of 105°C may be exceeded.

[0260] For light transformers of the safety allowable temperature type, the (1) maximum allowable temperature for insulation type is 105°C for Type A, 120°C for Type E, 130°C for Type B, 155°C for Type F, and 180°C for Type H. Based on the maximum allowable temperature for the corresponding Type A to H, the (2) temperature detected by the temperature sensor installed in the transformer is determined to be either above or below the maximum allowable temperature, or (3) based on the maximum allowable temperature values ​​for each of the above-mentioned Types A to H, for example, (4) a safety temperature coefficient of 0.97 is arbitrarily set in advance as the safety caution temperature. For example, (5) for a Type A transformer, if it detects a safety caution temperature of 102°C = (Maximum allowable temperature for Type A 105°C x 0.97), the relevant information such as the customer's name, building name, facility name, address, and the light and moving of the transformer will be sent to the PC, tablet, smartphone, etc. of the person concerned. The system transmits alerts in the form of voice, numerical values, images, etc., indicating the type and capacity of the power, the name of the electrical equipment load equipment at the system terminal, etc. The alert sound is transmitted continuously until the person in charge confirms and resets it to prevent the person in charge from overlooking it. Furthermore, if the detected temperature rises above the safety warning temperature of 102°C, for example, if the detected temperature rises above the safety warning temperature of 102°C, (6) the alarm shut-off temperature coefficient is set arbitrarily in advance, for example, 1.10, then (7) the alarm shut-off temperature = safety warning temperature 102°C x alarm temperature coefficient 1.10 = 112.2.

[0261] For example, (8) at a detection temperature of 132°C, (9) the automatic shut-off temperature = (detection temperature 132°C - alarm shut-off temperature 112.2°C) = 19.8°C, and (10) the automatic shut-off rate = 1 - (alarm shut-off temperature 112.2°C / detection temperature 132°C) = 15%, is automatically shut off, and the order of (11) the shutdown of terminal load equipment, electrical equipment, etc. of the main distribution board and additional distribution board is determined, and by automatically shutting off those that can be shut off without causing problems, such as the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., the (12) current value that energizes the TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, and (13) the TR temperature decreases.

[0262] Furthermore, the DESCON Safety Control System can be configured such that, as described above, even if (14) the distribution boards, control panels, circuits, etc., and terminal load equipment, electrical devices, etc. of the TR system with a detected temperature of 132°C are automatically shut off, (15) the alarm shut-off temperature of 112.2°C is not reached, and (16) the automatic shut-off program automatically shuts off the relevant distribution boards, control panels, circuits, etc., and terminal load equipment, electrical devices, etc. until the alarm shut-off temperature of 112.2°C is reached. Conversely, even if the system is shut off by the program, if the alarm shut-off temperature of 112.2°C is reached, the automatic shut-off is stopped.

[0263] (1) The DESCON safety control system can be configured to automatically shut off the current when the alarm shutoff temperature of 112.2°C is exceeded, for example, if the current value at the detection temperature of 132°C is 938A, then the system can be configured to automatically shut off the terminal load equipment, electrical equipment, etc., such as the main distribution board, extension distribution board, circuit, etc., in an order in which it will not cause any problems if shut off, for example, the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., with an automatic shutoff rate of 15% at an automatic shutoff temperature of 19.8°C, for example (2(1) detection shutoff current A = (detection current 938A x automatic shutoff rate 15%) = 140.7A).

[0264] (2) The DESCON safety control system can also be configured such that, (22) when the detection temperature is 132°C, for example, (23) if the detection current is 920A, (24) the alarm shut-off temperature is 112.2°C, (25) the automatic shut-off temperature is 19.8°C, (26) the automatic shut-off rate is 15%, and (27) the automatic shut-off current = (detection current 920A x automatic shut-off rate 15%) = 138A. The system can be configured to input the detection current at the shut-off detection temperature, automatically input the automatic shut-off current, and automatically shut off according to a predetermined program.

[0265] The DESCON Safety Control System (1) The automatic shutoff is for various facilities and electrical equipment such as goods and manufacturing using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting and elevators, etc., data centers for important data and research test results, infrastructure substations, etc., and transportation trains, ships, etc. (2) When terminal equipment such as The DESCON safety control system, which consists of remote devices for each system, such as distribution boards, main lines, circuits, and breakers, and a cloud server and LAN, can be configured to have a function to shut down the system by an emergency response protection program via remote devices for each system, such as a distribution board, switchboard, or control panel, which transmits a signal to a protection stop device, thereby safely protecting the control and other terminal equipment, either collectively or selected, and can be configured to have a means for controlling the stop function in a normal and safe manner, as well as a means for confirming the stop signal.

[0266] If the current detected by the CT of a safety-allowable temperature type light transformer rises above the safety warning temperature of 102°C, the light will shut off at an alarm shutoff temperature of (1102.2 x 1.10) = 112.2°C, based on a pre-set alarm shutoff coefficient of 1.10 for the safety warning temperature of 102°C.

[0267] For electric light transformers of the alarm temperature tolerance type, the (1) maximum allowable temperature for insulation type is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H. Based on the maximum allowable temperature for the corresponding type A to H, the (2) temperature detected by the temperature sensor installed in the transformer is determined to be either above or below the maximum allowable temperature, or (3) based on the respective maximum allowable temperature values ​​for type A to H, the (4) alarm temperature coefficient is arbitrarily set in advance. When the alarm temperature of a Type A TR with a fixed coefficient of 1.0 is detected (for example, (5) Type A TR = (Type A maximum allowable temperature 105°C x 1.0) = alarm allowable temperature 105°C), an alert is sent to the PC, tablet, smartphone, etc. of the person in charge, containing the relevant information such as the customer's name, building name, facility name, address, type and capacity of the TR's lighting and power, and the name of the load equipment of the electrical equipment at the system terminal, in the form of voice, numerical data, or images. Furthermore, the alert sound is continuously transmitted until the person in charge confirms and resets it, preventing the person in charge from missing the confirmation. If the detected temperature rises above the alarm allowable temperature of 105°C, the alarm shut-off temperature = (alarm temperature or allowable maximum temperature 105°C x alarm shut-off coefficient 1.10) = 115.5°C, and the alarm shut-off temperature is, for example, (9) if the detected temperature is 132°C, then (9) the automatic shut-off temperature = (detected temperature 132°C - alarm shut-off temperature 115.5°C = 16.5°C, (10 ) The automatic shutoff rate = 1 - (alarm shutoff temperature 115.5℃ / detection temperature 132℃) = 13% is automatically shut off, and the order of (11) shutoff of terminal load equipment, electrical equipment, etc. of the main distribution board and additional distribution board is determined, and by automatically shutting off the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., which can be shut off without causing problems, the (12) current value that energizes the TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, (13) the TR temperature decreases.

[0268] Furthermore, the DESCON safety control system can be configured such that, even if (14) the distribution boards, control panels, circuits, etc., and terminal load equipment, electrical devices, etc. of the TR system with a detected temperature of 132°C are automatically shut off, (15) the alarm shut-off temperature of 112.2°C is not reached, and (16) the automatic shut-off program automatically shuts off the relevant distribution boards, control panels, circuits, etc., and terminal load equipment, electrical devices, etc. until the alarm shut-off temperature of 115.5°C is reached. Conversely, even if the system is shut off by the program, if the alarm shut-off temperature of 115.5°C is reached, the automatic shut-off is stopped.

[0269] The DESCON safety control system can be configured to automatically shut off the current when the alarm shutoff temperature of 115.5°C is exceeded. For example, if the current value at the detection temperature of 132°C is 938A, then the system can be configured to automatically shut off the terminal load equipment and electrical equipment in the relevant main distribution board, extension distribution board, circuit, etc., in an order in which it will not cause any problems if shut off, for example, the relevant distribution board, control panel, circuit, etc., and terminal load equipment and electrical equipment, etc., with an automatic shutoff rate of 13% at an automatic shutoff temperature of 16.5°C.

[0270] The DESCON safety control system can be configured such that, for example, if the detection temperature is 132°C and the detection current is 920A, then the alarm shut-off temperature is 115.5°C, the automatic shut-off temperature is 16.5°C, the automatic shut-off rate is 13%, and the automatic shut-off current is 110A (920A detection current x 13% automatic shut-off rate). It can be configured to input the detection current at the shut-off detection temperature, automatically input the automatic shut-off current, and automatically shut off according to a predetermined program.

[0271] The DESCON Safety Control System (1) The automatic shutoff is for various facilities and electrical equipment such as goods and manufacturing using computer programs such as AI and IoT, logistics centers, large freezers and refrigerators, commercial facilities where many people gather, terminal buildings, hotels, etc., lighting and elevators, etc., data centers for important data and research test results, infrastructure substations, etc., and transportation trains, ships, etc. (2) When terminal equipment such as The DESCON safety control system, which consists of remote devices for each system, such as distribution boards, main lines, circuits, and breakers, and a cloud server and LAN, can be configured to have a function to shut down the system by an emergency response protection program via remote devices for each system, such as a distribution board, switchboard, or control panel, which transmits a signal to a protection stop device, thereby safely protecting the control and other terminal equipment, either collectively or selected, and can be configured to have a means for controlling the stop function in a normal and safe manner, as well as a means for confirming the stop signal.

[0272] The program for a safety-allowable temperature type light transformer (TR) is as shown in the diagram. When the detected current detected by the CT rises above the safety warning temperature of 102°C, the program automatically shuts off the light at a temperature of (1102.2 x 1.10) = 112.2°C or higher, using a pre-set alarm shutoff coefficient of 1.10 for the safety warning temperature of 102°C.

[0273] The program for automatically shutting off the distribution board, circuits, terminal electrical equipment, and load equipment of a system based on the voltage, TR capacity, thermal relay, circuit current, equipment capacity, etc. of four power transformers (hereinafter referred to as TR) in the building's power receiving and transforming equipment, as well as the detected temperature, is as shown in the diagram.

[0274] The DESCON safety control system consists of the following six pieces of equipment: (1) The aforementioned power TR 500 kVA, and the low-voltage power distribution panel system, for example, the main distribution panel NO. 1 has 58.1 kVA x NO. 6 has 5 sides + NO. 6 has 30.0 kVA, and the additional NO. 7 has 59.9 kVA + NO. 8 has 59.9 kVA + NO. 9 has 59.9 kVA, resulting in a main distribution panel capacity of 320.5 kW + additional distribution panel 179.7 kW = distribution panel capacity of 500.2 kVA, (1) TR capacity 500 kVA, maximum current 1718 A, (2) the alarm current of the safety protection thermal relay is 1350 A, and (3) the load factor is 79%. (4) The combined capacity of the permanent and additional distribution boards is 500 kVA, which is 100% of the TR capacity of 500 kVA, but (5) the load capacity of the thermal relay is 79% of 393 kVA.

[0275] As described above, (1) the transformer Tr1.3φ500kVA of low-voltage power distribution panel NO. 1, (2) has a maximum current of 1718A, and the low-voltage power distribution panel for system NO. 1 has a total capacity of 500kVA for the main distribution panels NO. 1 to NO. 6 (3) on the first floor, with a capacity of 320.5kVA for the main distribution panels and a capacity of 64% for the additional distribution panels, and a capacity of 179.7kVA for the additional distribution panels (36%), resulting in a maximum load factor of 100%. However, (1) the total capacity of the main distribution panels (320.5kVA) and the additional distribution panels (179.7kVA) for the aforementioned low-voltage power distribution panel system is 500kVA, and (2) the current value is 1718A. (3) As described above, the demand utilization rate of the lighting equipment is 65% to 75% of the capacity = (500 kVA x 65% to 75%) = approximately 325 kVA to 375 kVA, and the operating demand current A = (maximum current 1718 AX x 65% to 75%) = approximately 1116 A to 1288 A, (4) if calculated in reverse, there is a margin of about 35% to 25%.

[0276] Furthermore, if the power capacity of the low-voltage power distribution board exceeds 100% or the capacity of the system terminal load equipment is increased by adding terminal load equipment, the distribution board of the equipment in question will exceed 100% of the capacity of the TR, which is 500 kVA and the maximum current is 1718 A. If the distribution board of the system exceeds 100% or the capacity of the TR, or if the terminal load equipment is operated by adding terminal load equipment, (4) for example, the TR capacity may exceed 200 kVA and the maximum allowable temperature of insulation type A of 105°C may be exceeded.

[0277] The maximum permissible temperature for each insulation type of light transformer (TR) is 105°C for Class A, 120°C for Class E, 130°C for Class B, 155°C for Class F, and 180°C for Class H. The temperature sensor installed in the TR is based on the maximum permissible temperature for the corresponding Class A to H. (2) Determine whether the detected temperature exceeds the corresponding maximum allowable temperature or whether the detected temperature is below the maximum allowable temperature, or, based on the above-mentioned maximum allowable temperature values ​​for types A to H, for example, (4) set arbitrarily in advance as the safety caution temperature with a safety temperature coefficient of 0.97, for example, (5) when a type A TR detects that = (maximum allowable temperature for type A 105°C x 0.97) = safety caution temperature of 102°C, an alert is sent to the PC, tablet, smartphone, etc. of the person concerned with the relevant information, such as the customer's name, building name, facility name, location, type and capacity of the TR's lighting and power, and the name of the electrical equipment load equipment of the system terminal, etc., in the form of voice, numerical values, images, etc., and the alert sound is sent continuously until the person concerned confirms and resets it, in order to prevent the person concerned from missing confirmation, and if the detected temperature rises above the safety caution temperature of 102°C, For example, if the temperature rises above the safety warning temperature of 102°C and the alarm cutoff temperature coefficient is set arbitrarily in advance, for example, 1.10, then the alarm cutoff temperature = safety warning temperature 102°C x alarm temperature coefficient 1.10 = 112.2.

[0278] For example, (8) at a detection temperature of 132°C, (9) the automatic shut-off temperature = (detection temperature 132°C - alarm shut-off temperature 112.2°C) = 19.8°C, and (10) the automatic shut-off rate = 1 - (alarm shut-off temperature 112.2°C / detection temperature 132°C) = 15%, is automatically shut off, and the order of (11) the shutdown of terminal load equipment, electrical equipment, etc. of the main distribution board and additional distribution board is determined, and by automatically shutting off those that can be shut off without causing problems, such as the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., the (12) current value that energizes the TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, and (13) the TR temperature decreases.

[0279] As described above, the DESCON Safety Control System is characterized by a means to automatically shut off the distribution boards, control panels, circuits, terminal load equipment, electrical devices, etc., of the TR system when the detection temperature is 132°C (14), unless the preset alarm shutoff temperature of 112.2°C is reached (15), and to automatically shut off the distribution boards, control panels, circuits, terminal load equipment, electrical devices, etc., in accordance with the automatic shutoff program (16), until the alarm shutoff temperature of 112.2°C is reached. Conversely, even if the system is shut off by the program, if the alarm shutoff temperature of 112.2°C is reached, the automatic shutoff will be stopped. (16) The alarm shutoff program can be configured to automatically shut off the current when the alarm shutoff temperature of 112.2°C is exceeded, for example, (17) when the detection temperature is 132°C, (18) if the detected current value is 1620A, (19) at an automatic shutoff temperature of 19.8°C with an automatic shutoff rate of 18%, by determining the order in which to shut off the main distribution board, additional distribution board, circuit, terminal load equipment, electrical equipment, etc., in which there is no problem with shutting off, for example, the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., for example, if (19) the detected current value is 1620A, (20) with an automatic shutoff rate of 18%, (21) the detected shutoff current A = (detected current 1620A x automatic shutoff rate 18%) = 291.6A.

[0280] Furthermore, the DESCON safety control system can be configured to have a means to input the detected current at the detection temperature, automatically input the automatic shutdown current, and automatically shut off according to a predetermined program.

[0281] The DESCON Safety Control System automatically shuts off power to various facilities and electrical equipment, such as those used in the production and distribution of goods, large freezers, refrigerators, etc., by computer programs such as AI and IoT, as well as to the lighting, elevators, etc., of commercial facilities, terminal buildings, hotels, etc., where many people gather, as well as to data centers for important data, research and test results, etc., as well as to infrastructure substations, etc., and to the terminal equipment and electrical equipment, etc., of the relevant terminal equipment and electrical equipment, etc. (1) Program control, shut-off, etc., of terminal equipment, etc., are predetermined (2) When automatic shut-off occurs by a program, (3) Distribution boards, switchboards, control panels, main lines, etc. The DESCON safety control system, which consists of system-specific remote devices for circuits, breakers, etc., and a cloud server, LAN, etc., has the following functions: (3) an emergency response protection program, (4) a remote device such as the relevant distribution board, switchboard, control panel, etc., transmits a signal to the protection stop device, thereby safely protecting the control, etc., as a whole or selected terminal equipment, etc., (4) a program, (5) a shutdown function, (6) a safe and accurate (7) stop function control means, and (8) a stop signal confirmation function.

[0282] The program for a safety-allowable temperature type light transformer (TR) is as shown in the diagram. When the detected current detected by the CT rises above the safety warning temperature of 102°C, the program automatically shuts off the light at a temperature of (102.2 x 1.10) = 112.2°C or higher, using a pre-set alarm shutoff coefficient of 1.10 for the safety warning temperature of 102°C.

[0283] For electric light transformers of the alarm-permissible temperature type, the (1) maximum permissible temperature for insulation type is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H. Based on the maximum permissible temperature for the corresponding type A to H, the (2) detection temperature of the temperature sensor installed in the transformer is determined to be either above the corresponding maximum permissible temperature or below the maximum permissible temperature. Alternatively, based on the (3) maximum permissible temperature values ​​for each of the above types A to H, for example, the (4) alarm temperature coefficient is arbitrarily set in advance as a safety warning temperature. For example, (5) when the alarm temperature of a type A transformer is detected = (maximum permissible temperature for type A 105°C x 1.0) = maximum permissible temperature for type A, the system will determine whether the temperature detected is above the maximum permissible temperature for type A to H, or whether the temperature detected is below the maximum permissible temperature for type A to H. The system sends alerts to the PCs, tablets, smartphones, etc. of the person in charge, containing relevant information such as the customer's name, building name, facility name, location, type and capacity of the TR's lighting and power, and the name of the electrical equipment load equipment at the system terminal, in the form of voice, numerical values, images, etc. The alert sound is continuously transmitted until the person in charge confirms and resets it to prevent them from overlooking it. Furthermore, if the detected temperature rises above the alarm allowable temperature of 105°C, for example, the alarm cutoff temperature is set to (6) 1.15, and (7) the alarm cutoff temperature = (alarm temperature or allowable maximum temperature 105°C x alarm cutoff coefficient 1.15) = 121°C.

[0284] For example, (8) with a detection temperature of 140°C, (9) the automatic shut-off temperature = (detection temperature 140°C - alarm shut-off temperature 121°C) = 19.0°C, and (10) the automatic shut-off rate = 1 - (alarm shut-off temperature 121°C / detection temperature 140°C) = 14%, is automatically shut off, and the order of (11) the shutdown of terminal load equipment, electrical equipment, etc. of the main distribution board, extension distribution board, etc. is determined, and by automatically shutting off those that can be shut off without causing problems, such as the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., the (12) current value that energizes the TR is reduced, and the TR temperature decreases in proportion to the current value, (13) the TR temperature decreases.

[0285] As described above, the DESCON safety control system can be configured such that, even if (14) the distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc. of the TR system with a detection temperature of 140°C are automatically shut off, (15) the alarm shut-off temperature of 121°C is not reached, and (16) the automatic shut-off program automatically shuts off the relevant distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc. until the alarm shut-off temperature of 121°C is reached. Conversely, even if the system is shut off by the program, if the alarm shut-off temperature of 121°C is reached, the automatic shut-off is stopped.

[0286] (16) The alarm shutoff program may be configured to automatically shut off the current when the alarm shutoff temperature of 121°C is exceeded, for example, (17) when the detection temperature is 140°C, (18) if the detected current value is 1620A, (19) at an automatic shutoff temperature of 19.0°C with an automatic shutoff rate of 14%, by determining the order in which to shut off the main distribution board, additional distribution board, circuit, terminal load equipment, electrical equipment, etc., in which there is no problem with shutting off, for example, the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., for example, if (19) the detected current value is 1620A, (20) with an automatic shutoff rate of 14%, (21) the detected shutoff current A = (detected current 1620A x automatic shutoff rate 14%) = 226.8A.

[0287] The DESCON safety control system can be configured such that, for example, if the detection temperature is 140°C and the detection current is 1620A, then the alarm shut-off temperature is 115.5°C, the automatic shut-off temperature is 19.0°C, the automatic shut-off rate is 14%, and the automatic shut-off current is 226.8A (detection current 1620A x automatic shut-off rate 14%). The system can be configured to input the detection current at the shut-off detection temperature, automatically input the automatic shut-off current, and automatically shut off according to a predetermined program.

[0288] The DESCON Safety Control System automatically shuts off power to various facilities and electrical equipment, such as those used in the production and distribution of goods, large freezers, refrigerators, etc., by computer programs such as AI and IoT, as well as to the lighting, elevators, etc., of commercial facilities, terminal buildings, hotels, etc., where many people gather, as well as to data centers for important data, research and test results, etc., as well as to infrastructure substations, etc., and to the terminal equipment and electrical equipment, etc., of the relevant terminal equipment and electrical equipment, etc. (1) Program control, shut-off, etc., of terminal equipment, etc., are predetermined (2) When automatic shut-off occurs by a program, (3) Distribution boards, switchboards, control panels, main lines, etc. The DESCON safety control system, which consists of system-specific remote devices for circuits, breakers, etc., and a cloud server, LAN, etc., has the following functions: (3) an emergency response protection program, (4) a remote device such as the relevant distribution board, switchboard, control panel, etc., transmits a signal to the protection stop device, thereby safely protecting the control, etc., as a whole or selected terminal equipment, etc., (4) a program, (5) a shutdown function, (6) a safe and accurate (7) stop function control means, and (8) a stop signal confirmation function.

[0289] The program for an alarm-allowable temperature type light transformer is as shown in the diagram. When the detected current detected by the current transformer (CT) rises above the maximum allowable temperature, the alarm shutoff temperature = (105 x 1.15) = 121°C is automatically shut off, based on a pre-set alarm allowable temperature of 105°C and an alarm shutoff coefficient of 1.15.

[0290] For electric light transformers of the alarm temperature tolerance type, the (1) maximum allowable temperature for insulation type is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H. Based on the maximum allowable temperature for the corresponding type A to H, the (2) temperature detected by the temperature sensor installed in the transformer is determined to be either above or below the maximum allowable temperature, or (3) based on the respective maximum allowable temperature values ​​for type A to H, the (4) alarm temperature coefficient is arbitrarily set in advance. When the alarm temperature of a Type A TR with a fixed coefficient of 1.0 is detected (for example, (5) Type A TR = (Type A maximum allowable temperature 105°C x 1.0) = alarm allowable temperature 105°C), an alert is sent to the PC, tablet, smartphone, etc. of the person in charge, containing the relevant information such as the customer's name, building name, facility name, address, type and capacity of the TR's lighting and power, and the name of the load equipment of the electrical equipment at the system terminal, in the form of voice, numerical data, or images. Furthermore, the alert sound is continuously transmitted until the person in charge confirms and resets it, preventing the person in charge from missing the confirmation. If the detected temperature rises above the alarm allowable temperature of 105°C, the alarm shut-off temperature = (alarm temperature or allowable maximum temperature 105°C x alarm shut-off coefficient 1.10) = 115.5°C, and the alarm shut-off temperature is, for example, (9) if the detected temperature is 132°C, then (9) the automatic shut-off temperature = (detected temperature 132°C - alarm shut-off temperature 115.5°C = 16.5°C, (10 ) The automatic shutoff rate = 1 - (alarm shutoff temperature 115.5℃ / detection temperature 132℃) = 13% is automatically shut off, and the order of (11) shutoff of terminal load equipment, electrical equipment, etc. of the main distribution board and additional distribution board is determined, and by automatically shutting off the distribution board, control panel, circuit, etc., and terminal load equipment, electrical equipment, etc., which can be shut off without causing problems, the (12) current value that energizes the TR is reduced, and the TR temperature decreases in proportion to the current value due to the reduction in the thermal load of electrical resistance, (13) the TR temperature decreases.

[0291] As described above, the DESCON safety control system can be configured such that, even if (14) the distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc. of the TR system are automatically shut off when the detection temperature is 132°C, (15) the alarm shut-off temperature of 115.5°C is not reached, (16) the automatic shut-off program will automatically shut off the distribution boards, control panels, circuits, etc., and terminal load equipment, electrical equipment, etc. until the alarm shut-off temperature of 115.5°C is reached, and conversely, even if the automatic shut-off is being performed by the program, if the alarm shut-off temperature of 115.5°C is reached, the automatic shut-off will be stopped.

[0292] The DESCON safety control system can be configured to automatically shut off the current when the alarm shutoff temperature of 115.5°C is exceeded. For example, if the current value at the detection temperature of 132°C is 938A, then the system can be configured to automatically shut off the terminal load equipment and electrical equipment in the relevant main distribution board, extension distribution board, circuit, etc., in an order in which it will not cause any problems if shut off, for example, the relevant distribution board, control panel, circuit, etc., and terminal load equipment and electrical equipment, etc., with an automatic shutoff rate of 13% at an automatic shutoff temperature of 16.5°C.

[0293] The DESCON safety control system can be configured such that, for example, if the detection temperature is 132°C and the detection current is 920A, then the alarm shut-off temperature is 115.5°C, the automatic shut-off temperature is 16.5°C, the automatic shut-off rate is 13%, and the automatic shut-off current is 110A (920A detection current x 13% automatic shut-off rate).

[0294] The DESCON Safety Control System automatically shuts off power to various facilities and electrical equipment, such as those used in the production and distribution of goods, large freezers, refrigerators, etc., by computer programs such as AI and IoT, as well as to the lighting, elevators, etc., of commercial facilities, terminal buildings, hotels, etc., where many people gather, as well as to data centers for important data, research and test results, etc., as well as to infrastructure substations, etc., and to the terminal equipment and electrical equipment, etc., of the relevant terminal equipment and electrical equipment, etc. (1) Program control, shut-off, etc., of terminal equipment, etc., are predetermined (2) When automatic shut-off occurs by a program, (3) Distribution boards, switchboards, control panels, main lines, etc. The DESCON safety control system, which consists of system-specific remote devices for circuits, breakers, etc., and a cloud server, LAN, etc., has the following functions: (3) an emergency response protection program, (4) a remote device such as the relevant distribution board, switchboard, control panel, etc., transmits a signal to the protection stop device, thereby safely protecting the control of a group or selected terminal equipment, etc., (4) a program, (5) a shutdown function, (6) a safe and accurate (7) stop function control means, and (8) a stop signal confirmation function.

[0295] The program for a power transistor of the alarm-tolerant temperature type automatically shuts off the power supply at temperatures of 115.5°C or higher, based on a preset alarm shutoff coefficient of 1.10 for an alarm-tolerant temperature of 105°C, where the detected current detected by the CT rises above the alarm-tolerant temperature of 105°C. The program is as shown in the figure.

[0296] Notwithstanding the foregoing, the DESCON Safety Control System has a boiling point temperature of approximately 290°C to 340°C for the insulating oil of the TR, and the maximum permissible temperature for each type of TR insulation is 105°C for type A, 120°C for type E, 130°C for type B, 155°C for type F, and 180°C for type H. The system detects when the boiling point temperature of the TR and the various maximum permissible temperatures are exceeded, and before the upper limit temperature of the TR insulating oil is reached, for example, (1) the boiling point temperature of 290°C to 340°C, etc., (2) a temperature sensor is installed on the light and power TRs. Furthermore, an alarm temperature can be arbitrarily set in advance for the boiling point temperature of 290°C to 340°C, etc., and the upper limit temperature, etc.

[0297] For example, among the four power transformers (hereinafter referred to as TRs) in the building's power receiving and transforming equipment, the configuration of power TR No. 1, including its capacity, thermal relay, circuit current, and equipment capacity, as well as the detection temperature and interruption coefficient of the permanent distribution board, are as shown in the figure.

[0298] Regardless of the foregoing, the DESCON Safety Control System adds the load capacity of the system's low-voltage distribution boards, switchboards, circuits, etc., as well as the additional capacity based on the usage of the system's electrical equipment, mechanical equipment, terminal load equipment, etc., to the surrounding environment of the power receiving and transforming equipment, the lighting and power transformers, or the capacity of the transformers (kVA). For example, as shown in 6-13, if the No. 1 power transformer is at 100% load or exceeds 500 kVA and has a maximum current of 1718 A, or if the ambient temperature of the surrounding environment of the transformer is abnormally high, for example, the boiling point temperature of the insulating oil of the transformer is normally around 290°C to 340°C. The system sets, for example, a (2) arbitrary boiling point warning temperature of 290°C and a (3) absolute alarm temperature of 300°C. The TR can be configured to send an alert via voice, numerical values, or images to the relevant person's PC, tablet, smartphone, etc., containing the relevant information such as the customer name, building name, facility name, location of the TR, type and capacity of the TR's lights and power, electrical equipment at the system terminal, load equipment name, etc., and continue sending alerts until the relevant person confirms the alert, thereby preventing electrical burnout accidents and fire accidents.

[0299] The DESCON safety control system, for example, has a boiling point temperature of insulating oil that is typically around 290°C to 340°C, and (1) when it exceeds the boiling point caution temperature of, for example, 180°C, (2) when the boiling point temperature of insulating oil is 290°C to 340°C, which is set to an arbitrary pre-set temperature. (3) For example, if the boiling point temperature is 290°C, (4) the automatic shut-off coefficient for boiling point = (290°C x 0.70 to 0.90, etc.), (5) the shut-off temperature for boiling point = 203°C to 261°C, etc., and (6) for example, if the boiling point temperature is 340°C, (7) the automatic shut-off coefficient for boiling point = (340°C x 0.70 to 0.90, etc.) = (8) when the automatic shut-off temperature for boiling point = 238°C to 306°C, etc. is detected, the system can be configured to select the circuit of the relevant low-voltage distribution board, such as the system distribution board, terminal load electrical equipment, terminal load equipment, etc., in which the power supply will be automatically shut off in advance without causing any problems, and to determine the priority order of the distribution board, control board, circuit, etc. and terminal load electrical equipment, terminal load equipment, etc. for automatic shut-off, and to have means to automatically shut off the distribution board, control board circuit, etc. and terminal load electrical equipment, terminal load equipment, etc. until the detected temperature reaches a temperature arbitrarily determined in advance.

[0300] The program for automatically shutting off the boiling point temperatures of the distribution boards, circuits, terminal electrical equipment, and load equipment in a building's power receiving and transforming equipment, for example, four power transformers (hereinafter referred to as TRs), is as shown in the diagram.

[0301] Notwithstanding the foregoing, the DESCON Safety Control System adds the load capacity of the system's low-voltage distribution boards, switchboards, circuits, etc., as well as the additional capacity based on the usage status of the system's electrical equipment, mechanical equipment, terminal load equipment, etc., to the surrounding environment of the power receiving and transforming equipment, lighting and power transformers, or the capacity of the transformers in kVA, for example, 7-3. As described above, when the No. 1 power TR is under 100% load or exceeding 500 kVA and maximum current of 1718 A, and due to abnormally high temperatures such as the ambient temperature of the surrounding environment of the TR, for example, the boiling point temperature is set to be around 290°C to 340°C, the stem sets the boiling point of the insulating oil to 290°C to 340°C, for example, arbitrarily set in advance as the boiling point alarm temperature, and the TR has (1) an insulating oil boiling point temperature of 290°C or (2) an arbitrarily set boiling point coefficient of 0.7, etc., which may be 0.98, etc. = (set 290°C x arbitrary coefficient 0.7, etc.) = (3) an insulating oil in a boiling point caution temperature range of 203.0°C to 261°C, for example, the boiling point caution temperature of 203.0°C is set arbitrarily as the boiling point caution temperature. For example, (5) When a boiling point warning temperature of 203°C to 261°C is detected, an alert is sent to the PCs, tablets, smartphones, etc. of relevant parties as a boiling point warning temperature, containing relevant information such as customer name, building name, facility name, location, type and capacity of the TR's lighting and power, system end electrical equipment, load equipment name, etc., via voice, numerical values, images, etc. The alert can be sent repeatedly until the relevant party confirms receipt of the alert, thereby preventing electrical burnout and fire accidents.

[0302] The DESCON Safety Control System, for example, has a boiling point temperature range of (1) typically around 290°C to 340°C for insulating oil, and (1) for example, an arbitrary pre-set boiling point cutoff coefficient of 0.75 to 0.9 for insulating oil with a boiling point temperature of 290°C to 340°C, (2) an arbitrary boiling point cutoff coefficient of 0.75 to 0.9, (3) a boiling point temperature of 290°C, (4) a boiling point cutoff coefficient of 0.75, (5) a boiling point cutoff temperature of 217°C, and (6) an automatic cutoff coefficient of 0.9 for boiling point temperature of 290°C, (8) a boiling point cutoff temperature of 261°C, and (9) an automatic cutoff coefficient of 0.9 for boiling point temperature of 340°C. In 75, (11) when the boiling point cutoff temperature of 306°C is detected, (12) the circuit of the relevant panel, such as the system distribution panel control panel, terminal load electrical equipment, etc. of the relevant low-voltage distribution panel, is selected in advance so that no problems will occur if the power supply is automatically cut off at a certain temperature, (13) the priority order of the distribution panel, control panel, circuit, terminal load electrical equipment, etc. to be automatically cut off is determined, and (14) until the detected temperature reaches a temperature arbitrarily determined in advance, (15) the distribution panel, control panel, circuit, etc. and terminal load electrical equipment, terminal load equipment, etc. can be configured to be equipped with means to automatically cut off the distribution panel, control panel, circuit, etc. and terminal load electrical equipment, terminal load equipment, etc.

[0303] The DESCON safety control system is an automatic shut-off program with a preset automatic shut-off coefficient of 0.75 at the boiling point temperature of the power transistor, for example, 290°C.

[0304] The DESCON safety control system has the following characteristics for the aforementioned lighting TR: (1) TR capacity is 500 kVA, (2) maximum current is 1718 A, (3) alarm current is 1350 A, (4) load equipment capacity is 393 kW, (5) load factor is 79%, (6) main distribution board capacity is 145 kVA and additional distribution board capacity is 55 kVA, for a total of 200 kVA, (7) for example, TR NO1 of the relevant TR has an arbitrary boiling point temperature of 290°C, (8) arbitrary boiling point caution coefficient is 0.7, (9 (10) Boiling point warning temperature 203°C, (11) Boiling point cutoff coefficient 0.75, (12) Boiling point cutoff temperature 218°C, (13) Automatic cutoff temperature coefficient = (Detected temperature 275°C / Automatic cutoff temperature 218°C) = 1.26, (14) Automatic cutoff coefficient is (1.26 - 1.0) = 0.26, (15) Automatic cutoff capacity = (Convert constant to TR200kVA x Cutoff coefficient 0.26) = 132.2kVA, (16) Automatic cutoff capacity 134.8kVA, (17) Current cutoff coefficient 0.98, (18) Temperature after cutoff = (Detected temperature 275°C x Current cutoff coefficient 0.97) = 213°C.

[0305] The DESCON safety control system can be configured to include a determination means that if the detected temperature of the TR in question, 275.0°C, drops to an arbitrarily set temperature of 203°C, for example, by shutting off circuit (3), the automatic shutoff in circuit (2) of the additional distribution board will stop, and circuit (4) will operate normally.

[0306] The DESCON Safety Control System databases the relationship between current values ​​and operating time for the safety protection of terminal load equipment and electrical equipment. (1) When automatic shutdown occurs as described above, (1) an alert is sent to the PC, tablet, smartphone, etc. of the person in charge, containing relevant information such as customer name, building name, facility name, location, type and capacity of the TR's lighting and power, and system end. The alert is sent in real time with voice, image, and numerical values. The system also enables the remote devices of the relevant equipment, such as the distribution board, switchboard, control panel, main line, and circuit breakers, to transmit a stop signal to the protective stop device via a system-specific remote device, cloud server, LAN, etc., using an emergency response protection program.

[0307] The DESCON Safety Control System databases the relationship between current values ​​and operating time to ensure the safety and protection of terminal load equipment and electrical equipment. (1) When an automatic shutoff occurs as described above, (2) an alert is sent in real time via voice, numerical values, and images to the PCs, tablets, smartphones, etc. of the relevant personnel, containing relevant information such as customer name, building name, facility name, location, type and capacity of the TR's lighting and power, and the names of the electrical equipment and load equipment at the system terminals. The system also features a control means that enables the safe and reliable shutdown function and confirmation of the shutdown signal by having the remote device of the relevant equipment (distribution board, switchboard, control panel, main line, circuit, etc.) transmit a stop signal to the protection stop device via a system-specific remote device, cloud server, LAN, etc.

[0308] For example, the system automatically shuts off the power distribution boards, circuits, terminal electrical equipment, and load equipment based on the boiling point temperatures of three lighting transformers (hereinafter referred to as TRs) in the building's power receiving and transforming equipment, as well as the voltage of the TRs, TR capacity, thermal relays, circuit current, equipment capacity, etc., and the detected temperature.

[0309] For example, among the three lighting transformers (hereinafter referred to as TR) in the building's power receiving and transforming equipment, the configuration of power TR No. 1, including its capacity, thermal relay, circuit current, and equipment capacity, as well as the detection temperature and tripping coefficient of the permanent distribution board, are as follows.

[0310] The DESCON Safety Control System, notwithstanding the foregoing, adds the load capacity of the system's low-voltage distribution boards, switchboards, circuits, etc., as well as the increased capacity due to the usage of system electrical equipment, mechanical equipment, terminal load equipment, etc., to the surrounding environment of the power receiving and transforming equipment, the power supply equipment, and the capacity of the power supply equipment (kVA), for example, as shown in 8, 100% load or exceeding of 200 kVA and a maximum current of 952 A for power supply equipment No. 1, and abnormally high temperatures such as the ambient temperature of the surrounding environment of the power supply equipment, for example, if the boiling point temperature is 290 The stem, which is said to be around 340°C, has an insulating oil boiling point, and for example, the boiling point alarm temperature of the insulating oil is set to 290°C to 340°C, and the TR is set to (1) the boiling point temperature of the insulating oil of the TR, which is 290°C, or (2) an arbitrary boiling point coefficient set in advance, such as 0.7...0.98 = (set 290°C x arbitrary coefficient 0.7...0.98) = (3) an insulating oil in a boiling point caution temperature range of 203.0°C to 261°C, and for example, the boiling point caution temperature of 203.0°C is set to an arbitrary boiling point caution temperature. For example, (5) When a boiling point warning temperature of 203°C to 261°C is detected, an alert is sent to the PCs, tablets, smartphones, etc. of relevant parties as a boiling point warning temperature, containing relevant information such as customer name, building name, facility name, location, type and capacity of the TR's lighting and power, system end electrical equipment, load equipment name, etc., via voice, numerical values, images, etc. The alert can be sent repeatedly until the relevant party confirms receipt of the alert, thereby preventing electrical burnout and fire accidents.

[0311] The DESCON safety control system can be configured to include a determination means that if the detected temperature of the TR in question, 275.0°C, drops to, for example, the maximum allowable temperature of 105°C or an arbitrarily set temperature of 203°C by shutting off circuit (3), the automatic shutoff in circuit (2) of the additional distribution board will stop, and circuit (4) will operate normally.

[0312] The DESCON Safety Control System databases the relationship between current values ​​and operating time for the safety protection of terminal load equipment and electrical equipment. (1) When an automatic shutoff occurs as described above, (2) an alert is sent to the PC, tablet, or smartphone of the person in charge, containing relevant information such as the customer name, building name, facility name, location, type and capacity of the TR's lighting and power, and system end. The alert is sent in real time using voice, images, and numerical values. The system also provides a control means to safely and reliably shut down the circuit breakers, etc. of the relevant equipment's distribution boards, switchboards, control panels, main lines, circuits, etc., via a system-specific remote device, cloud server, LAN, etc., using an emergency response protection program. The remote device of the relevant distribution board, switchboard, control panel, etc. sends a stop signal to the protection stop device, and the system is equipped with a control means to confirm the stop signal.

[0313] The DESCON Safety Control System databases the relationship between current values ​​and operating time for the safety protection of terminal load equipment and electrical equipment. (1) When an automatic shutoff occurs as described above, (2) an alert is sent in real time via voice, numerical values, and images to the PCs, tablets, smartphones, etc. of the relevant personnel, containing relevant information such as customer name, building name, facility name, location, type and capacity of the TR's lighting and power, and the names of the electrical equipment and load equipment at the system terminals. The system also provides a control means to safely and reliably shut down the circuit breakers, etc. of the relevant equipment's distribution boards, switchboards, control panels, main lines, circuits, etc., via a system-specific remote device, cloud server, LAN, etc., using an emergency response protection program. The remote device of the relevant distribution board, switchboard, control panel, etc. sends a stop signal to the protection stop device, and the system is equipped with a control means to confirm the stop signal.

[0314] The DESCON Safety Control System is used in large buildings and facilities such as: (1) for example, when smoke detectors, heat detectors, flame detectors, etc., are detected by fire alarm systems on fire prevention panels in fire prevention facilities, such as the initial stages of a fire, such as heat, smoke, etc. The system can be configured to receive a signal and (2) automatically shut off the circuits of the low-voltage distribution boards, switchboards, control panels, etc. for the relevant low-voltage lighting and power equipment in the substation, and terminal electrical equipment, terminal load equipment, etc., and (3) also to detect the relevant building, floor, area, room, etc., sensed by the fire alarm and (4) to notify of electrical fire accidents such as short circuits, sparks, tracking, etc., from the circuits, main lines, wiring, etc. of the low-voltage distribution boards, switchboards, control panels, etc., and terminal electrical equipment, terminal load equipment, etc.

Claims

1. A system for monitoring and controlling substation equipment deployed in a circuit leading from the power supply side to multiple loads, wherein the system is deployed for a step-down distribution transformer deployed in the substation equipment, and the transformer detection temperature value T is the temperature of the transformer. Ｔ A transformer-detected temperature value acquisition means for acquiring °C; an instantaneous current value acquisition means for acquiring an instantaneous AC current value or instantaneous DC current value which is the instantaneous current value i (amperes) flowing in the circuit of electrical equipment installed in the circuit after the voltage has been stepped down by the transformer in the substation equipment; and the transformer-detected temperature value T Ｔ The permissible temperature range is predetermined for the heat resistance class, which is classified according to the heat resistance characteristics of the insulating material used in the transformer, whose temperature in °C has been determined, and the transformer detected temperature value T Ｔ The system comprises: a transformer temperature determination means for comparing with °C; an instantaneous current value determination means for comparing the detected instantaneous current value i (amperes) with a preset allowable current value range for the circuit of the electrical equipment from which the instantaneous current value i (amperes) has been acquired by the instantaneous current value acquisition means; a notification information transmission means for outputting notification information to an administrator terminal used by the administrator managing the substation and / or a staff terminal used by the staff member responsible for managing the substation; a notification information level determination means for determining the level of the notification information output by the notification information transmission means based on the comparison result by the transformer temperature determination means and the comparison result by the instantaneous current value determination means; a power supply automatic shutoff capability determination means; a first power supply shutoff means; and a second power supply shutoff means, wherein the notification information level determination means determines that the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C has reached the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means has not reached the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C has not reached the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means has reached the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be the warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When the temperature reaches the warning-issuing temperature within the allowable temperature range, and the comparison result by the instantaneous current value determination means reaches the warning-issuing current value within the allowable current value range, the level of the notification information is determined to be alarm notification information, which is a different type of notification information from the warning information, and the comparison result by the transformer temperature determination means is the transformer detected temperature value T Ｔ When °C reaches an alarm temperature which is a temperature value higher than the warning temperature in the allowable temperature range, or when the comparison result by the instantaneous current value determination means reaches an alarm current value which is a current value higher than the warning current value in the allowable current value range, the level of the notification information is determined to be alarm notification information. The notification information transmission means outputs the notification information at the level determined by the notification information level determination means. When the notification information level determination means determines that the level of the notification information is alarm notification information, the power supply automatic shutoff determination means determines whether each of the plurality of loads to which current is supplied via the electrical equipment for which the instantaneous current value i (amperes) was acquired by the instantaneous current value acquisition means, which was the subject of comparison by the instantaneous current value determination means, is a load to which the power supply can be automatically shut off. The first power supply shutoff means automatically shuts off the power supply to the loads that the power supply automatic shutoff determination means has determined to be capable of automatic shutoff. The second power supply interruption means interrupts the power supply to the load device control device that controls the load, which has been determined by the power supply automatic interruption capability determination means to be unable to automatically interrupt the power supply, and then automatically interrupts the power supply to the load, in a power receiving and transforming equipment, leakage current, and stray current digital safety control system.

2. The output of the notification information by the notification information transmission means includes the transformer detection temperature value T in the transformer that is subject to determination by the notification information level determination means. Ｔ The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to claim 1, further comprising information regarding °C and information regarding the instantaneous current value i (amperes) in the electrical equipment that is subject to determination by the notification information level determination means.

3. The digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to claim 1 or 2, wherein the instantaneous time is any microsecond time between 1 / 50,000 seconds (= 20 μsec) and 1 / 100,000 seconds (= 10 μsec).

4. The digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to claim 3, further comprising a tracking detection function that converts an analog instantaneous AC current value or an analog instantaneous DC current value detected by the instantaneous current value detection means into an analog voltage value, converts the analog voltage value into a digital voltage value, and converts the digital voltage value into a current value to detect abnormal current.

5. When the electrical equipment from which the instantaneous current value is acquired by the instantaneous current value acquisition means is a circuit breaker, or when a circuit breaker is installed in the circuit after it has been stepped down by the transformer in the substation, the substation further comprises a circuit breaker detection temperature value acquisition means for monitoring the temperature rise due to Joule heating at the terminal block of the connection part of the circuit in the circuit breaker, thereby having a Joule heating detection function, as described in claim 3.

6. The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to claim 5, further comprising a circuit breaker instantaneous current value detection means for monitoring the overcurrent of the circuit in the circuit breaker, thereby having an overcurrent monitoring function.

7. The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to claim 5, further comprising a leakage current and stray current value detector ZCT (Zero-phase Current Transformer) for monitoring the leakage current of the circuit in the circuit breaker, thereby having a leakage current and stray current monitoring function.

8. The power receiving and transforming equipment, leakage current, and stray current digital safety control system according to claim 6, further comprising a leakage current and stray current value detector ZCT (Zero-phase Current Transformer) for monitoring the leakage current of the circuit in the circuit breaker, thereby having a leakage current and stray current monitoring function.

9. The transformer detection temperature value T obtained by the transformer detection temperature value acquisition means Ｔ A power receiving and transforming facility, leakage current, stray current digital safety control system according to claim 7 or 8, further comprising a database processing unit for creating a database by databaseizing one or more types of information regarding the temperature in °C, information regarding the instantaneous DC current value detected by the instantaneous current value detection means, and information regarding the leakage current / stray current value grasped by the leakage current / stray current detector ZCT, and recording it as a database.

10. The digital safety control system for power receiving and transforming equipment, leakage current, and stray current according to claim 9, further comprising a database information output means for extracting information corresponding to the information provision request from the database when an information provision request is received from the administrator terminal or the person in charge terminal, and sending the information to the administrator terminal or person in charge terminal that made the information provision request.

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