Quick access device and method for three-phase alternating-current emergency power supply

Abstract

The invention discloses a quick access device and method for a three-phase alternating-current emergency power supply, and the device comprises a box body, a three-phase open-phase phase sequence protector, an interconnection switch, a temperature measurement monitoring device, a voltage monitoring device and a current monitoring device, the interior of the box body is of a rectangular cavity structure, and a wire hole is formed in a housing; the three-phase open-phase phase sequence protector, the interconnection switch, the temperature measurement monitoring device, the voltage monitoring device and the current monitoring device are arranged in the box body, and windows corresponding to the three-phase open-phase phase sequence protector, the interconnection switch, the temperature measurement monitoring device, the voltage monitoring device and the current monitoring device are arranged on the box body. A wiring terminal is arranged between one wire hole and the interconnection switch, and the wiring terminal adopts a self-locking quick plug and a conversion terminal strip; on the basis of an existing box body and an existing detection device, improvement is carried out, the installation and wiring mode is optimized, the box body does not need to be opened during wiring, rapid connection is directly carried out through the self-locking type rapid plug, a power source is monitored in real time, and the power source access quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power, and particularly to a three-phase AC emergency power supply rapid access device and method. Background Art

[0002] With the development of social economy and the improvement of people's living standards, the stability and reliability of power supply are of great significance for ensuring the normal progress of production and life. However, power interruption events caused by various reasons occur from time to time. Therefore, the rapid access of emergency power supply is particularly important. Traditional emergency power supply access methods have problems such as slow speed and poor stability. Especially in terms of installation and power supply stability, specifically, when crimping connections are made through bolts, the cover needs to be opened first, and then complex operations such as pulling cables, screwing bolts, and crimping cable lugs are required. The access device needs to be fixedly installed, and the installation position is relatively fixed, which cannot meet the requirements of modern power systems. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a three-phase AC emergency power supply rapid access device and method. By improving on the existing box body and detection device, and optimizing the installation and wiring methods, the problems of slow access speed and poor stability in the prior art are solved.

[0004] To solve the above technical problems, a technical solution provided by the present invention is: a three-phase AC emergency power supply rapid access device, including a box body, a three-phase open-phase phase sequence protector, a tie switch, a temperature measurement monitoring device, a voltage monitoring device, and a current monitoring device. The characteristics are as follows: The box body includes a shell and a cover body. The cover body covers the shell and forms a rectangular chamber structure through bolt connection. Line holes are provided at both the top and bottom of the shell. The three-phase open-phase phase sequence protector, tie switch, temperature measurement monitoring device, voltage monitoring device, and current monitoring device are arranged on the inner wall of the shell through mounting brackets, and windows corresponding to the three-phase open-phase phase sequence protector, tie switch, temperature measurement monitoring device, voltage monitoring device, and current monitoring device are provided on the cover body. A wiring terminal is provided between one of the line holes and the tie switch. A wiring terminal operation port is provided on the cover body. The wiring terminal adopts a self-locking quick plug and a transfer terminal block. A grounding bolt is provided on the side of the shell.

[0005] Further, hanging pieces are provided on the back surface of the box body.

[0006] Further, a luminous backboard is provided on the inner wall of the box body at the wiring terminal.

[0007] Further, a flip cover for shielding the wiring terminal operation port is hinged on the cover body.

[0008] Further, an abnormal indicator light is provided on the cover body.

[0009] Further, a connection mark is provided on the housing.

[0010] To solve the above technical problems, another technical solution provided by the present invention is: A three-phase AC emergency power supply quick access method based on the above-mentioned device, and its steps are: Determine the connection method with the wiring terminal in advance according to the power of the emergency power supply, and connect the quick plug or connection terminal to the connection wire of the emergency power supply; The other end of the connection switch is connected in advance to the load power supply end through a wire passing through another wire hole; Determine the power of the emergency power supply to be accessed and select the emergency power supply, and connect the quick plug or connection terminal on the connection wire of the selected emergency power supply to the wiring terminal; The emergency power supply supplies power to the load through the connection switch. The three-phase open-phase phase sequence protector, voltage monitoring device and current monitoring device monitor the voltage, current and phase sequence of the emergency power supply in real time. The temperature measurement monitoring device monitors the internal environment temperature of the box in real time. When the monitored data is abnormal, an audible and visual alarm is given.

[0011] Further, the process of connecting the quick plug on the connection wire of the selected emergency power supply to the wiring terminal is: The operator holds the quick plug on the connection wire and inserts it into the self-locking quick plug through the wire hole, and limits the two through the self-locking structure.

[0012] Further, the process of connecting the connection terminal on the connection wire of the selected emergency power supply to the wiring terminal is: Flip up the cover to expose the wiring terminal operation port. The operator holds the connection terminal on the connection wire and places it on the transfer terminal row through the wire hole, and then connects the two through the connection bolt. Flip the cover down to block the wiring terminal operation port.

[0013] Further, the monitoring data of the voltage, current and phase sequence of the detected emergency power supply are displayed. When the voltage, current and phase sequence are abnormal, an audible and visual alarm is given, and the alarm signal and the position signal of the switch are transmitted to the background.

[0014] The beneficial effects of the present invention are: 1. This application is an improvement based on the existing box body and detection device, optimizing the installation and wiring methods. This application will not describe them here, but only describe the box body structure in detail. When wiring, there is no need to open the box body. It can be quickly connected directly through a self-locking quick plug, and the wiring terminal operation port is blocked by a flip cover, so that the exposed terminal posts cannot be seen from the outside, increasing the insulation level of the socket; voltage, current, temperature, phase sequence and other detection devices are introduced to realize real-time monitoring of the introduced power supply, ensuring the quality of power access. At the same time, multiple windows corresponding to the detection devices are provided on the cover body to form a visualization panel, so that the operation status of the device can be effectively understood without opening the device, and there is no need to open the cover body, which is convenient for selection and use in a narrow space.

[0015] 2. This application uses mature voltage, current, temperature, phase sequence and other detection devices in the prior art to detect the power supply and display the detection results through its own display, improving the safety of the emergency power supply during power supply. The abnormal indicator lights include temperature abnormal indicator lights and voltage abnormal indicator lights to achieve indication and alarm.

[0016] 3. This application designs corresponding backlight illumination at the connection of the device cable plug. Considering that it is mainly used for power outage repair, if the light is poor at night during a power outage, it will affect the wiring difficulty and reduce the wiring efficiency; the connection of the quick plug is designed with silver plating, making the plug more durable and having stronger conductivity. And the quick plug has a self-locking function. In practical applications, it can effectively avoid the situation that the connected plug loosens due to vibration, ensure the connection stability, improve the reliability of the cable connection plug, reduce the connection resistance of the connection point, increase the connection area, and improve the overcurrent performance and fire resistance of the connection plug.

[0017] 4. This application can timely detect whether there are fault risks such as overvoltage and overcurrent by real-time monitoring the voltage and current parameters of the emergency power supply, which can avoid further damage to the equipment, reduce the maintenance cost and the cost of replacing the equipment, and prevent equipment damage caused by overvoltage, overcurrent and other phenomena. It is monitored in real time through the monitoring function of the equipment itself. If there is an abnormality, there should be a sound and light alarm to remind the on-site personnel. In addition, the device can communicate with the holographic platform for data communication to achieve the purpose of remote measurement and remote signaling, realizing dual-channel monitoring.

[0018] 5. This application uses a three-phase open-phase phase sequence protector to detect the phase sequence. Traditional phase sequence detection methods often require manual operation and are easily affected by the environment and other factors. And the intelligent phase sequence detection technology can automatically identify the phase sequence of the connected power supply and complete the detection and judgment in a short time. This technology relies on advanced sensors and algorithms to accurately detect and judge the phase sequence of the power supply, ensuring the stable access of the power supply.

[0019] To make the above and other objects, features, and advantages of the present invention more apparent and understandable, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only seven of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is the front view of this application.

[0022] Figure 2 It is the top view of this application.

[0023] Figure 3 It is the bottom view of this application.

[0024] Figure 4 It is the left view of this application.

[0025] Figure 5 It is the structural schematic diagram after removing the cover body Figure 1 .

[0026] Figure 6 It is the structural schematic diagram after removing the cover body Figure 2 .

[0027] Figure 7 It is the physical diagram of this application.

[0028] In the figure, 1 - box body, 2 - three - phase open - phase phase - sequence protector, 3 - connection switch, 4 - temperature measurement and monitoring device, 5 - voltage monitoring device, 6 - current monitoring device, 7 - wire hole, 8 - window, 9 - terminal operation port, 10 - quick plug, 11 - transfer terminal block, 12 - grounding bolt, 13 - hanging piece, 14 - abnormal indicator light, 15 - flip cover, 16 - connection mark. Detailed Embodiments

[0029] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0030] In this application, unless otherwise clearly specified or limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information. Embodiment 1

[0032] As Figures 1 - 6 shown, a three-phase AC emergency power supply quick access device includes a box body 1, a three-phase open-phase phase sequence protector 2, a tie switch 3, a temperature measurement monitoring device 4, a voltage monitoring device 5, and a current monitoring device 6. The box body 1 includes a shell and a cover body. The cover body covers the shell and forms a rectangular chamber structure through bolt connection. Wire holes 7 are provided at both the top and bottom of the shell. The three-phase open-phase phase sequence protector 2, the tie switch 3, the temperature measurement monitoring device 4, the voltage monitoring device 5, and the current monitoring device 6 are arranged on the inner wall of the shell through a mounting rack, and windows 8 corresponding to the three-phase open-phase phase sequence protector 2, the tie switch 3, the temperature measurement monitoring device 4, the voltage monitoring device 5, and the current monitoring device 6 are provided on the cover body. A wiring terminal is arranged between a wire hole 7 and the tie switch 3. A wiring terminal operation port 9 is provided on the cover body. The wiring terminal adopts a self-locking quick plug 10 and a transfer terminal block 11. A grounding bolt 12 is provided on the side of the shell; on the basis of the existing box body 1 and detection devices, the installation and wiring methods are optimized. When wiring, there is no need to open the box body 1, and direct quick connection can be achieved through the self-locking quick plug 10; detection devices such as voltage, current, temperature, and phase sequence are introduced to realize real-time monitoring of the introduced power supply and ensure the quality of power supply access.

[0033] Furthermore, hanging pieces 13 are provided on the back surface of the box body 1 to form a wall-mounted installation, and it can be installed at any blank position in the AC feeder panel of the substation; and a plurality of windows 8 corresponding to the detection devices are provided on the cover body to form a visualization panel. Without opening the device, the operation status of the device can be effectively understood, and there is no need to open the cover body, which is convenient for selection and use in a narrow space.

[0034] Further, the terminal block adopts a self-locking quick plug 10 and a transfer terminal block 11; the connection part of the quick plug 10 is designed with silver plating, making the plug more durable and having stronger conductivity. Moreover, the quick plug 10 has a self-locking function, which effectively avoids the loosening of the connection plug caused by vibration in practical applications, ensures connection stability, improves the over-current performance and fire resistance of the connection plug. The transfer terminal block 11 can adapt to the access of high-power power supplies, and both the self-locking quick plug 10 and the standard terminal wire nose can be used for connection, expanding the adaptability of the device. Whether the self-locking method of the quick plug 10 is an anti-helical method or a clamping method can be flexibly selected according to actual needs.

[0035] Further, an abnormal indicator light 14 is provided on the cover body; mature detection devices for voltage, current, temperature, phase sequence, etc. in the prior art are used to monitor the power supply in real time, and important parameters such as the voltage and current of the temporary power supply are monitored to prevent equipment damage caused by phenomena such as overvoltage and overcurrent. Through the self-monitoring function of the device, real-time monitoring is carried out. If there is an abnormality, there should be an audible and visual alarm to remind the on-site personnel, and the detection results are displayed through its own display, improving the safety of the emergency power supply during power supply. The abnormal indicator light 14 includes a temperature abnormal indicator light 14 and a voltage abnormal indicator light 14 to achieve indication and alarm.

[0036] Further, a connection mark 16 is provided on the housing for indicating the connection position to facilitate quick connection by personnel. Embodiment 2

[0037] This embodiment is obtained by further describing with technical features such as a luminous backplane added on the basis of Embodiment 1. The remaining technical features are the same as those in Embodiment 1, and the same parts will not be elaborated here. Among them, the difference between this embodiment and Embodiment 1 is that a luminous backplane is provided on the inner wall of the box body 1 at the terminal block.

[0038] In this embodiment, corresponding backlight illumination is designed at the connection of the device terminal block. Considering that it is mainly used for power outage emergency repair, in the case of power outage at night, if the light is poor, it will affect the wiring difficulty and reduce the wiring efficiency. Embodiment 3

[0039] As Figure 1 shown, this embodiment is obtained by further describing with technical features such as a flip cover 15 added on the basis of Embodiment 2. The remaining technical features are the same as those in Embodiment 2, and the same parts will not be elaborated here. Among them, the difference between this embodiment and Embodiment 2 is that a flip cover 15 for covering the wiring terminal operation port 9 is hinged on the cover body.

[0040] In this embodiment, the wiring terminal operation port 9 is covered by the flip cover 15, and the exposed terminal posts cannot be seen from the outside, playing a protective role and increasing the insulation level of the socket.

[0041] The usage process of the technical solution formed by integrating the above embodiments is as follows: Install the three-phase open-phase phase-sequence protector 2 (the SMGQ-3S type three-phase open-phase phase-sequence protector 2 can be used), the tie switch 3 (the NXMS-250H / 4300C type electronic circuit breaker of CHNT can be used), the temperature measurement and monitoring device 4 (a temperature sensor with a display function can be used, specifically the intelligent wireless temperature measurement and monitoring device 4 produced by Lexin Electric Power Technology Co., Ltd.), the voltage monitoring device 5 (a voltage monitoring device 5 with a display function can be used, specifically the HH-DT-3 type voltage monitor produced by Baoding Huahang Electric Co., Ltd.) and the current monitoring device 6 (a voltage monitoring device 5 with a display function can be used, specifically the OHR-C200 type digital current detector produced by Fujian Shunchang Hongrun Precision Instruments Co., Ltd.) in the rectangular chamber inside the box body 1. One end of the tie switch 3 is electrically connected to the wire passing through the side wire hole 7, and the other end of the tie switch 3 is connected to the terminal through a connecting wire. The temperature measurement and monitoring device 4, the voltage monitoring device 5 and the current monitoring device 6 are connected according to the usage instructions, which will not be described in this application. Only the structure of the box body 1 will be described in detail. Then cover the cover on the shell and tighten it with bolts. Hang the box body 1 at the blank position in the AC feeder panel of the substation through the hanging piece 13, connect the ground wire, and complete the installation of this application.

[0042] Determine the connection method with the terminal in advance according to the power of the emergency power supply, and connect the quick plug 10 or the connection terminal to the connection wire of the emergency power supply; the other end of the tie switch 3 is connected in advance to the load power supply end through the wire passing through another wire hole 7; determine the power of the emergency power supply to be connected and select the emergency power supply, and connect the quick plug 10 or the connection terminal on the connection wire of the selected emergency power supply to the terminal; realize the power supply of the emergency power supply to the load through the tie switch 3. The three-phase open-phase phase-sequence protector 2, the voltage monitoring device 5 and the current monitoring device 6 monitor the voltage, current and phase sequence of the emergency power supply in real time. The temperature measurement and monitoring device 4 monitors the ambient temperature inside the box body in real time, and gives an audible and visual alarm when the monitored data is abnormal.

[0043] Among them, the process of connecting the quick plug 10 on the connection wire of the selected emergency power supply to the terminal is as follows: The operator holds the quick plug 10 on the connection wire and inserts it into the self-locking quick plug 10 from the wire hole 7, and limits the two through the self-locking structure; the process of connecting the connection terminal on the connection wire of the selected emergency power supply to the terminal is as follows: Flip up the flip cover 15 to expose the terminal operation port 9. The operator holds the connection terminal on the connection wire and places it on the transfer terminal block 11 from the wire hole 7, and then connects the two through the connection bolt. Flip down the flip cover 15 to cover the terminal operation port 9.

[0044] Among them, the monitoring data of the emergency power supply voltage, current, and phase sequence detected are displayed. When the voltage, current, and phase sequence are abnormal, audible and visual alarms are given, and the alarm signal and the position signal of the switch are transmitted to the background.

[0045] Note that the above is only the preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here, and various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A three-phase AC emergency power supply quick access device, comprising a box, a three-phase phase failure phase sequence protector, a tie switch, a temperature monitoring device, a voltage monitoring device and a current monitoring device, characterized in that: The box body includes a shell and a cover body, the cover body is covered on the shell and connected by bolts to form a rectangular chamber structure, the top and bottom of the shell are provided with wire holes, the three-phase phase failure phase sequence protector, the connecting switch, the temperature measuring monitoring device, the voltage monitoring device and the current monitoring device are arranged on the inner wall of the shell through a mounting frame, and the cover body is provided with windows corresponding to the three-phase phase failure phase sequence protector, the connecting switch, the temperature measuring monitoring device, the voltage monitoring device and the current monitoring device, a wiring terminal is arranged between one of the wire holes and the connecting switch, the cover body is provided with a wiring terminal operation port, the wiring terminal adopts a self-locking quick plug and a transfer terminal block, and a grounding bolt is arranged on the side of the shell.

2. A three-phase AC emergency power supply quick access device according to claim 1, characterized in that: A hanging piece is arranged on the back side of the box body.

3. A three-phase AC emergency power supply quick access device according to claim 2, characterized in that: A luminous back panel is arranged on the inner wall of the box body at the connection terminal.

4. A three-phase AC emergency power supply quick access device according to claim 1, characterized in that: A flip cover for shielding the operating opening of the wiring terminal is hingedly connected to the cover body.

5. The three-phase AC emergency power supply quick access device according to claim 1 is characterized in that: An abnormality indicator light is arranged on the cover body.

6. A three-phase AC emergency power supply quick access device according to claim 1, characterized in that: A connection mark is arranged on the shell.

7. A three-phase AC emergency power supply quick access method based on the device according to any one of claims 1 to 6, the steps of which are: Determine the connection method with the wiring terminal in advance according to the power of the emergency power supply, and connect the quick plug or connection terminal to the connection line of the emergency power supply; The other end of the contact switch is connected to the load power supply end in advance through a wire passing through another wire hole; Determine the power of the emergency power supply to be connected and select the emergency power supply, and connect the quick plug or connection terminal on the emergency power supply connection line to the wiring terminal; The emergency power supply is used to supply power to the load through the contact switch. The three-phase phase failure phase sequence protector, voltage monitoring device and current monitoring device monitor the voltage, current and phase sequence of the emergency power supply in real time. The temperature monitoring device monitors the ambient temperature inside the box in real time, and sound and light alarms are issued when the monitoring data is abnormal.

8. A three-phase AC emergency power supply rapid access method according to claim 7, characterized in that: The process of connecting the quick plug on the selected emergency power supply connection line to the wiring terminal is as follows: a person holds the quick plug on the connection line and inserts it into the self-locking quick plug from the wire hole, and limits the two by the self-locking structure.

9. A three-phase AC emergency power supply rapid access method according to claim 7, characterized in that: The process of connecting the connection terminal on the selected emergency power supply connection line to the wiring terminal is as follows: flip the cover upward to expose the wiring terminal operation port, the personnel hold the connection terminal on the connection line and place it on the transfer terminal block through the wire hole, and then connect the two through the connecting bolts, and flip the cover downward to cover the wiring terminal operation port.

10. A three-phase AC emergency power supply rapid access method according to claim 7, characterized in that: The monitoring data of the detected emergency power supply voltage, current and phase sequence are displayed. When the voltage, current and phase sequence are abnormal, sound and light alarms are given, and the alarm signal and switch position signal are transmitted to the background.

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