Transformer differential protection measurement and control device

Abstract

The utility model relates to the technical field of power system protection and measurement and control, in particular to a transformer differential protection measurement and control device. The device comprises a shell, a control module, a sampling module, a processing module, a power supply module, a heat dissipation module and an environment adaptation module. A plurality of partition plates are arranged in the shell and divide the internal space into a plurality of functional areas. The control module comprises a main control board and a plurality of control circuits, the sampling module comprises a current transformer and a voltage transformer, the processing module comprises a signal processing board and a data processing board, the power supply module comprises a power supply board and a battery, and the heat dissipation module comprises a heat dissipation fan and heat dissipation fins. The environment adaptation module comprises a temperature sensor, a humidity sensor, a heater and a condenser. According to the invention, stable operation of the device in an extreme environment condition can be ensured, the high efficiency and accuracy of signal transmission are improved, and the heat dissipation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of power system protection and measurement and control technology, specifically a transformer differential protection measurement and control device. BACKGROUND

[0002] With the continuous progress of transformer differential protection measurement and control technology in power systems, existing transformer differential protection measurement and control devices have been widely used. However, these products still have some problems in actual use. For example, existing transformer differential protection measurement and control devices usually have limitations in environmental adaptability and anti-interference ability, which leads to unstable performance in extreme environmental conditions.

[0003] To solve these problems, there have been some attempts, such as enhancing the sealing of the device and using more advanced electronic components to improve anti-interference ability. Although these methods improve related aspects to some extent, they still have limitations, such as higher cost and limited effectiveness in certain specific environments.

[0004] Specifically, after searching, a transformer differential protection measurement and control device with publication number CN220629747U was disclosed on March 19, 2024. This design uses a structure of shock-absorbing springs and protective plates, which can provide a certain degree of protection and reduce the vibration and shaking of the device. However, due to the placement of its heater and condenser, it may have reduced efficiency in extreme temperature conditions, which may not guarantee the normal operation of the measurement and control device in extreme environmental temperatures. Therefore, this design still needs to be improved in terms of environmental adaptability.

[0005] After searching, a transformer measurement and control protection device with differential protection function and transformer with publication number CN216390489U was disclosed on April 26, 2022. This product uses a structure of sampling modules, processing modules, and control modules, which can achieve basic differential protection functions. However, due to its limited adaptability to large-capacity transformers, especially in complex working conditions with high voltage and large current, it may exhibit slow response speed and insufficient precision of control signals. Therefore, it is difficult to meet the current demand for high-precision, fast-response new transformer differential protection measurement and control devices in power systems.

[0006] The above problems show that the transformer differential protection measurement and control devices on the market are difficult to effectively cope with the new requirements for high-precision control and fast response in complex working conditions. Therefore, the utility model provides a transformer differential protection measurement and control device to overcome these shortcomings and provide a more intelligent, efficient, and adaptable to changing environment new solution. UTILITY MODEL CONTENTS

[0007] The utility model relates to a kind of transformer differential protection measurement and control device, including shell, control module, sampling module, processing module, power module, heat dissipation module and environmental adaptation module.The shell is cuboid structure, its inside is equipped with multiple partitions, the shell interior space is divided into multiple functional areas, the control module, sampling module, processing module, power module and heat dissipation module are respectively installed in different functional areas.The front end of the shell is equipped with display screen and operation panel, rear end is equipped with terminal and heat dissipation hole.

[0008] The control module includes main control board and multiple control circuits, the main control board is fixed on the front side partition inside shell, and the control circuit is connected with main control board respectively, for receiving and processing various control signals.The sampling module includes current transformer and voltage transformer, and the current transformer and voltage transformer are respectively installed on the two side partitions inside shell, for collecting the current and voltage signal of transformer.The processing module includes signal processing board and data processing board, and the signal processing board and data processing board are respectively fixed on the rear side partition inside shell, for processing and analyzing the signal collected.The power module includes power board and battery, and the power board is fixed on the bottom partition inside shell, and the battery is installed below power board, for providing stable power supply for the whole device.The heat dissipation module includes heat dissipation fan and heat dissipation fin, and the heat dissipation fan is installed at the heat dissipation hole of rear end of shell, and the heat dissipation fin is fixed on the top partition inside shell, for improving the heat dissipation effect of device.

[0009] The environmental adaptation module includes temperature sensor, humidity sensor, heater and condenser, and the temperature sensor and humidity sensor are respectively installed on the front side partition inside shell, for monitoring the temperature and humidity inside device in real time.The heater and condenser are respectively installed on the two side partitions inside shell, for adjusting the temperature and humidity inside device, ensure that device normally operates under extreme environmental conditions.The temperature sensor and humidity sensor are connected with main control board respectively, and the heater and condenser are connected with power module respectively, by the control of main control board, according to the feedback signal of temperature sensor and humidity sensor, automatically adjust the operating state of heater and condenser, to keep the temperature and humidity inside device in suitable range.

[0010] Further preferred: the front end of the shell is provided with a waterproof sealing ring, which is tightly embedded at the edge of the front end of the shell, for improving the waterproof performance of the device. The rear end of the shell is provided with a dust screen, which is fixed at the heat dissipation hole of the rear end of the shell, for preventing dust from entering the inside of the device. The two sides of the shell are provided with shock-absorbing pads, which are fixed at the bottom of the two sides of the shell, for reducing the vibration and shaking of the device during transportation and use. The inside of the shell is provided with an electromagnetic shielding layer, which is fixed on each partition inside the shell, for improving the anti-interference ability of the device.

[0011] Further preferred: the current transformer and voltage transformer are respectively connected with the main control board through flexible cables, which have good flexibility and tensile properties, and can effectively reduce the interference in the signal transmission process. The signal processing board and data processing board are connected through high-speed data lines, which have the characteristics of low delay and high transmission rate, and can ensure the efficiency and accuracy of signal processing. The power board and battery are connected through a voltage stabilizing circuit, which can stabilize the voltage output by the battery within the required range, ensuring the stable operation of the device.

[0012] Further preferred: the heat-conducting silicone grease is provided between the heat dissipation fan and the heat sink, which is coated on the surface of the heat sink, for improving the heat conduction performance of the heat sink. The speed of the heat dissipation fan can be automatically adjusted according to the temperature inside the device, through the control of the main control board, according to the feedback signal of the temperature sensor, to automatically adjust the speed of the heat dissipation fan, to keep the temperature inside the device within the appropriate range. The shape of the heat dissipation hole is long strip, and the edge of the heat dissipation hole is provided with a dust screen, for preventing dust from entering the inside of the device.

[0013] Further preferred: the temperature sensor and humidity sensor are respectively provided with a protective cover, which is fixed outside the temperature sensor and humidity sensor, for protecting the temperature sensor and humidity sensor from the influence of the external environment. The heater and condenser are respectively provided with a protective shell, which is fixed outside the heater and condenser, for protecting the heater and condenser from the influence of the external environment. The heat insulation plate is provided between the heater and the condenser, which is fixed between the heater and the condenser, for reducing the heat conduction between the heater and the condenser.

[0014] Further preferred: the front end of the shell is provided with an indicator light, the indicator light is fixed on the operation panel of the front end of the shell, and is used for displaying the running state of the device. The indicator light is connected with the main control panel, and the indicator light is automatically turned on or turned off according to the running state of the device through the control of the main control panel. The rear end of the shell is provided with a wiring terminal, the wiring terminal is fixed at the wiring hole of the rear end of the shell, and is used for connecting external equipment. The wiring terminal is provided with a waterproof cover, and the waterproof cover is fixed outside the wiring terminal to prevent water from entering the wiring terminal.

[0015] The utility model discloses a structure composition and realization principle are: this transformer differential protection measurement and control device improves the waterproof and dustproof performance of device through the waterproof sealing ring and dust screen of shell, reduces the vibration and shaking of device in the transportation and use process through shock pad, improves the anti -interference ability of device through electromagnetic shield layer. Current transformer and voltage transformer are connected with main control panel through flexible cable, and signal processing board and data processing board are connected through high -speed data line, and power board and battery are connected through voltage stabilizing circuit, and the high efficiency and accuracy of signal transmission and the stable operation of device are ensured. Heat conduction silicone grease is arranged between the cooling fan and the cooling fin, the rotating speed of the cooling fan can be automatically adjusted according to the temperature in the device, the shape of the cooling hole is strip-shaped and the edge is provided with a dust screen, and the heat dissipation effect of the device is improved. The temperature sensor and the humidity sensor are provided with a protective cover, the heater and the condenser are provided with a protective shell, and the heater and the condenser are provided with a heat insulation plate, to ensure the normal operation of the device under extreme environmental conditions. The indicator light is used for displaying the running state of the device, and the wiring terminal is provided with a waterproof cover, to ensure the reliability and safety of the device.

[0016] The utility model discloses a structure composition and realization principle are: this transformer differential protection measurement and control device improves the waterproof and dustproof performance of device through the waterproof sealing ring and dust screen of shell, reduces the vibration and shaking of device in the transportation and use process through shock pad, improves the anti -interference ability of device through electromagnetic shield layer. Current transformer and voltage transformer are connected with main control panel through flexible cable, and signal processing board and data processing board are connected through high -speed data line, and power board and battery are connected through voltage stabilizing circuit, and the high efficiency and accuracy of signal transmission and the stable operation of device are ensured. Heat conduction silicone grease is arranged between the cooling fan and the cooling fin, the rotating speed of the cooling fan can be automatically adjusted according to the temperature in the device, the shape of the cooling hole is strip-shaped and the edge is provided with a dust screen, and the heat dissipation effect of the device is improved. The temperature sensor and the humidity sensor are provided with a protective cover, the heater and the condenser are provided with a protective shell, and the heater and the condenser are provided with a heat insulation plate, to ensure the normal operation of the device under extreme environmental conditions. The indicator light is used for displaying the running state of the device, and the wiring terminal is provided with a waterproof cover, to ensure the reliability and safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is whole structure schematic diagram of the utility model;

[0018] Figure 2 It is internal structure schematic diagram of the shell of the utility model;

[0019] Figure 3 It is the schematic view of control module and sampling module of the utility model;

[0020] Figure 4 It is the schematic view of processing module and power module of the utility model;

[0021] Figure 5 It is the schematic view of heat dissipation module and environment adaptation module of the utility model;

[0022] Figure 6 It is the schematic view of front end and rear end structure of the shell of the utility model.

[0023] The reference signs are as follows: 1, shell;2, control module;3, sampling module;4, processing module;5, power module;6, heat dissipation module;7, environment adaptation module;8, display screen;9, operation panel;10, wiring terminal;11, heat dissipation hole;12, main control board;13, control circuit;14, current transformer;15, voltage transformer;16, signal processing board;17, data processing board;18, power board;19, battery;20, heat dissipation fan;21, heat dissipation fin;22, temperature sensor;23, humidity sensor;24, heater;25, condenser;26, waterproof sealing ring;27, dust screen;28, shock pad;29, electromagnetic shielding layer;30, flexible cable;31, high-speed data line;32, voltage stabilizing circuit;33, heat-conducting silicone grease;34, protective cover;35, protective shell;36, heat insulation plate;37, indicator light;38, wiring terminal waterproof cover. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-6 The utility model provides a transformer differential protection measurement and control device, including shell 1, control module 2, sampling module 3, processing module 4, power module 5, heat dissipation module 6 and environment adaptation module 7. Shell 1 is cuboid structure, is equipped with multiple partitions in its inside, divides the inside space of shell 1 into multiple functional areas, and control module 2, sampling module 3, processing module 4, power module 5 and heat dissipation module 6 are installed in different functional areas respectively. The front end of shell 1 is equipped with display screen 8 and operation panel 9, and the rear end is equipped with wiring terminal 10 and heat dissipation hole 11.

[0026] Please refer to Figure 2The control module 2 includes a main control board 12 and multiple control circuits 13. The main control board 12 is fixed on the front side partition inside the shell 1, and the control circuits 13 are respectively connected with the main control board 12 for receiving and processing various control signals. The sampling module 3 includes a current transformer 14 and a voltage transformer 15, which are respectively installed on the two side partitions inside the shell 1 for collecting current and voltage signals of the transformer. The processing module 4 includes a signal processing board 16 and a data processing board 17, which are respectively fixed on the rear side partition inside the shell 1 for processing and analyzing the collected signals. The power module 5 includes a power board 18 and a battery 19, the power board 18 is fixed on the bottom partition inside the shell 1, and the battery 19 is installed below the power board 18 for providing stable power supply for the entire device. The heat dissipation module 6 includes a heat dissipation fan 20 and a heat dissipation fin 21, the heat dissipation fan 20 is installed at the heat dissipation hole 11 at the rear end of the shell 1, and the heat dissipation fin 21 is fixed on the top partition inside the shell 1 for improving the heat dissipation effect of the device.

[0027] Please refer to Figure 3 The main control board 12 and the control circuits 13 are installed on the front side partition, and the current transformer 14 and the voltage transformer 15 are installed on the two side partitions. The current transformer 14 and the voltage transformer 15 are respectively connected with the main control board 12 through flexible cables 30, which have good flexibility and tensile properties, and can effectively reduce the interference in the signal transmission process.

[0028] Please refer to Figure 4 The signal processing board 16 and the data processing board 17 are fixed on the rear side partition, and are connected through high-speed data lines 31, which have low delay and high transmission rate, and can ensure the efficiency and accuracy of signal processing. The power board 18 and the battery 19 are connected through a voltage stabilizing circuit 32, which can stabilize the voltage output by the battery 19 within the required range, ensuring the stable operation of the device.

[0029] Please refer to Figure 5The environmental adaptation module 7 includes a temperature sensor 22, a humidity sensor 23, a heater 24, and a condenser 25. The temperature sensor 22 and the humidity sensor 23 are installed on the front partition, respectively, for real-time monitoring of the temperature and humidity inside the device. The temperature sensor 22 and the humidity sensor 23 are respectively provided with a protective cover 34 fixed outside the temperature sensor 22 and the humidity sensor 23 for protecting them from the external environment. The heater 24 and the condenser 25 are installed on the two side partitions, respectively, for adjusting the temperature and humidity inside the device. A heat insulation plate 36 is provided between the heater 24 and the condenser 25, fixed between the heater 24 and the condenser 25, for reducing heat conduction between the heater 24 and the condenser 25. The heater 24 and the condenser 25 are respectively provided with a protective shell 35 fixed outside the heater 24 and the condenser 25. The temperature sensor 22 and the humidity sensor 23 are respectively connected with the main control board 12, and the heater 24 and the condenser 25 are respectively connected with the power module 5. Through the control of the main control board 12, according to the feedback signal of the temperature sensor 22 and the humidity sensor 23, the running state of the heater 24 and the condenser 25 is automatically adjusted to keep the temperature and humidity inside the device within the appropriate range.

[0030] Please refer to Figure 6 The front end of the shell 1 is provided with a waterproof sealing ring 26, which is tightly embedded in the edge of the front end of the shell 1, for improving the waterproof performance of the device. The rear end of the shell 1 is provided with a dust screen 27, which is fixed at the heat dissipation hole 11 of the rear end of the shell 1, for preventing dust from entering the inside of the device. The shape of the heat dissipation hole 11 is long strip, and the edge of the heat dissipation hole 11 is provided with the dust screen 27. The two sides of the shell 1 are provided with shock absorbing pads 28, which are fixed at the bottom of the two sides of the shell 1, for reducing the vibration and shaking of the device during transportation and use. The inside of the shell 1 is provided with an electromagnetic shielding layer 29, which is fixed on each partition inside the shell 1, for improving the anti-interference ability of the device. The front end of the shell 1 is provided with an indicator light 37, which is fixed on the operation panel 9 at the front end of the shell 1, for displaying the running state of the device. The indicator light 37 is connected with the main control board 12, and through the control of the main control board 12, according to the running state of the device, the indicator light 37 is automatically turned on or off. The rear end of the shell 1 is provided with a wiring terminal 10, which is fixed at the wiring hole of the rear end of the shell 1, for connecting external equipment. The wiring terminal 10 is provided with a waterproof cover 38, which is fixed outside the wiring terminal 10, for preventing water from entering the wiring terminal 10.

[0031] The working principle is as follows: the current transformer 14 and the voltage transformer 15 respectively collect the current and voltage signals of the transformer, which are transmitted to the main control board 12 through the flexible cable 30. The main control board 12 processes these signals through the control circuit 13 to perform differential protection calculation.

[0032] The signal processing board 16 and the data processing board 17 further process and analyze the received signals to ensure accuracy and efficiency.

[0033] The power supply board 18 stabilizes the voltage output by the battery 19 within a desired range through the voltage stabilizing circuit 32, providing a stable power supply for the entire device.

[0034] The cooling fan 20 and the cooling fins 21 work together to maintain the temperature within the device within a suitable range by automatically adjusting the speed of the cooling fan 20 based on the feedback signal from the temperature sensor 22.

[0035] The temperature sensor 22 and the humidity sensor 23 monitor the temperature and humidity within the device in real time, and the main control board 12 automatically adjusts the operating state of the heater 24 and the condenser 25 based on these feedback signals to ensure normal operation of the device under extreme environmental conditions.

[0036] The indicator light 37 displays the operating state of the device, such as normal operation or fault alarm, under the control of the main control board 12.

[0037] The wiring terminal 10 is used to connect external equipment, and the waterproof cover 38 of the wiring terminal prevents moisture from entering the wiring terminal 10, ensuring the reliability of the device.

[0038] Through the above structural design and working principle, the transformer differential protection measurement and control device of the present application can operate stably under various extreme environments, has good waterproof, dustproof, anti-interference and temperature regulation capabilities, and ensures the reliability and safety of the device.

[0039] As certain terms have been used in the specification and claims, those skilled in the art will appreciate that hardware manufacturers can use different names to refer to the same component. The specification and claims of this specification do not distinguish components by name, but by their functional differences. As used throughout the specification and claims, "comprise" is an open term that is intended to encompass non-exclusive inclusion, such that a product or system that comprises a list of elements is not limited to those elements, but can also include other elements not expressly listed, or inherent to such product or system. Without further limitation, an element defined by the phrase "comprises a" does not exclude the existence of additional identical elements in the product or system comprising the element.

[0040] It should be noted that the terms "include", "contain" or any other variant thereof are intended to encompass non-exclusive inclusion, such that a product or system that includes a list of elements does not only include those elements, but also includes other elements not expressly listed, or inherent to such product or system. Without further limitation, an element defined by the phrase "comprises a" does not exclude the existence of additional identical elements in the product or system comprising the element.

[0041] The above description shows and describes several preferred embodiments of the present application, but as previously indicated, the present application is not limited to the forms disclosed, but should be accorded the full scope consistent with the patent and principles of patent law, and can be practiced in various other combinations, modifications, and environments, and with the contents of the application concept described herein, by following the teachings or using the knowledge in the relevant art. Any changes and modifications made by those skilled in the art to the present application without departing from the spirit and scope of the present application shall fall within the scope of protection of the claims of the present application.

Claims

1. A transformer differential protection monitoring and control device, comprising a housing (1), a control module (2), a sampling module (3), a processing module (4), a power supply module (5), a heat dissipation module (6), and an environmental adaptation module (7), characterized in that: The outer shell (1) is a cuboid structure with multiple partitions inside, dividing the internal space of the outer shell (1) into multiple functional areas; the control module (2) includes a main control board (12) and multiple control circuits (13), the main control board (12) is fixed on the front partition inside the outer shell (1), and the control circuits (13) are connected to the main control board (12); the sampling module (3) includes a current transformer (14) and a voltage transformer (15), the current transformer (14) and the voltage transformer (15) are respectively installed on the two side partitions inside the outer shell (1); the processing module (4) includes a signal processing board (16) and a data processing board (17), the signal processing board (16) and the data processing board (17) are respectively fixed on the rear partition inside the outer shell (1); the power module (5) The system includes a power board (18) and a battery (19). The power board (18) is fixed on the bottom partition inside the housing (1), and the battery (19) is installed below the power board (18). The heat dissipation module (6) includes a cooling fan (20) and a heat sink (21). The cooling fan (20) is installed at the heat dissipation hole (11) at the rear end of the housing (1), and the heat sink (21) is fixed on the top partition inside the housing (1). The environmental adaptation module (7) includes a temperature sensor (22), a humidity sensor (23), a heater (24), and a condenser (25). The temperature sensor (22) and the humidity sensor (23) are respectively installed on the front partition inside the housing (1), and the heater (24) and the condenser (25) are respectively installed on the side partitions inside the housing (1).

2. The transformer differential protection and control device according to claim 1, characterized in that: The front end of the outer shell (1) is provided with a waterproof sealing ring (26), which is tightly embedded in the edge of the front end of the outer shell (1).

3. The transformer differential protection and control device according to claim 1, characterized in that: The rear end of the outer shell (1) is provided with a dustproof net (27), which is fixed at the heat dissipation hole (11) at the rear end of the outer shell (1).

4. The transformer differential protection and control device according to claim 1, characterized in that: The outer shell (1) is provided with shock-absorbing pads (28) on both sides, and the shock-absorbing pads (28) are fixed to the bottom of both sides of the outer shell (1).

5. The transformer differential protection and control device according to claim 1, characterized in that: The outer shell (1) is provided with an electromagnetic shielding layer (29) inside, and the electromagnetic shielding layer (29) is fixed to each partition inside the outer shell (1).

6. The transformer differential protection and control device according to claim 1, characterized in that: The current transformer (14) and voltage transformer (15) are respectively connected to the main control board (12) via flexible cables (30).

7. The transformer differential protection and control device according to claim 1, characterized in that: The signal processing board (16) and the data processing board (17) are connected by a high-speed data cable (31).

8. The transformer differential protection and control device according to claim 1, characterized in that: The power board (18) and the battery (19) are connected by a voltage regulator circuit (32).

9. The transformer differential protection and control device according to claim 1, characterized in that: Thermal grease (33) is provided between the cooling fan (20) and the heat sink (21).

10. The transformer differential protection and control device according to claim 1, characterized in that: The temperature sensor (22) and humidity sensor (23) are respectively provided with protective covers (34), the heater (24) and condenser (25) are respectively provided with protective shells (35), and a heat insulation plate (36) is provided between the heater (24) and condenser (25).

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