Structural components to prevent burnout of low-voltage switchgear in transformer substations

Abstract

This utility model discloses a structural component for preventing burn-out of a prefabricated low-voltage switchgear. The structural component, housed within the prefabricated low-voltage switchgear, includes: a temperature sensor, at least one of which is located at the copper busbar; and a temperature and humidity controller connected to the temperature sensor and mounted on the side wall of the prefabricated low-voltage switchgear via a connecting member. The connecting member is fixedly connected to the side wall, while the temperature and humidity controller is detachably connected to the connecting member. The temperature and humidity controller is also connected to the trip circuit on the high-voltage side of the prefabricated low-voltage switchgear. The temperature sensor allows for timely monitoring of the temperature near the copper busbar. When the monitored temperature exceeds a set temperature, the temperature and humidity controller transmits a signal to the trip circuit, tripping the prefabricated low-voltage switchgear for protection. This facilitates maintenance and repair by personnel, preventing burn-out of the prefabricated low-voltage switchgear and avoiding severe economic losses.

Description

Technical Field

[0001] This utility model relates to the technical field of preventing the low-voltage switchgear of transformer substations from burning out, and in particular to a structural component for preventing the low-voltage switchgear of transformer substations from burning out. Background Technology

[0002] During power plant operation, the electrical energy generated by the equipment is transmitted from the transformer substation to the 35kV collection line and then to the power grid via the step-up substation. Every connection in this process is crucial and carries the risk of causing power system failures. Market research indicates that many transformer substation low-voltage switchgear units are at risk of burning out. Currently, there is no effective solution to prevent this problem. Because the equipment is often located far from the maintenance personnel's offices, they cannot obtain information about equipment damage until the equipment is completely burned out and trips, at which point on-site personnel cannot arrive, preventing timely intervention after an accident.

[0003] Currently, overheating at the low-voltage side copper busbars of the transformer substation frequently leads to malfunctions. Furthermore, the lack of effective control measures to monitor these malfunctions allows them to escalate from initial overheating at the copper busbars to gradual burnout of the entire low-voltage switchgear, ultimately resulting in the complete destruction of the switchgear and further exacerbating the problem. The conventional solution is to wrap the overheated area with insulating material, but this method cannot completely resolve the issue. Once a malfunction occurs, the resulting equipment downtime and wasted personnel time and effort are substantial, severely impacting the power plant's operational efficiency. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] In view of this, the present invention provides a structural component for preventing the low-voltage switchgear of the transformer substation from burning out. The structural component can obtain the monitoring temperature near the copper busbar in a timely manner through the setting of a temperature sensor. When the monitoring temperature is higher than the set temperature, the temperature and humidity controller transmits a signal to the trip circuit to realize the trip protection of the low-voltage switchgear of the transformer substation. This allows the staff to carry out maintenance and repair, avoiding the burn-out of the low-voltage switchgear of the transformer substation and causing serious economic losses.

[0006] Specifically, the following technical solutions are included:

[0007] This utility model provides a structural component for preventing burn-out of a prefabricated low-voltage switchgear. The structural component is disposed inside the prefabricated low-voltage switchgear and includes:

[0008] Temperature sensor, at least one temperature sensor is located at the copper busbar;

[0009] A temperature and humidity controller is connected to a temperature sensor and is mounted on the side wall of the low-voltage switchgear via a connecting member. The connecting member is fixedly connected to the side wall, and the temperature and humidity controller is detachably connected to the connecting member. The temperature and humidity controller is also connected to the trip circuit on the high-voltage side of the low-voltage switchgear.

[0010] Optionally, the structural component further includes:

[0011] A humidity sensor, multiple humidity sensors are installed inside the low-voltage cabinet of the transformer substation. The humidity sensor is configured to monitor the humidity inside the low-voltage cabinet of the transformer substation. The humidity component is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller.

[0012] Optionally, the first and second terminals of the temperature and humidity controller are connected to a power source, the temperature sensor is connected to the fifteenth and sixteenth terminals of the temperature and humidity controller, and the humidity sensor is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller.

[0013] Optionally, the connecting member includes:

[0014] The mounting plate is fixedly connected to the side wall of the low-voltage switchgear of the transformer substation.

[0015] A connecting plate is connected to the mounting plate via a gooseneck tube, and the connecting plate is provided with a mounting port.

[0016] An elastic connector is installed inside the mounting port, and the elastic connector is detachably connected to the temperature and humidity controller.

[0017] Optionally, the temperature and humidity controller has a fixing plate on the side away from the wiring terminals. The fixing plate has an opening and a pair of connecting slots. The opening and the connecting slots are connected. The line connecting the pair of connecting slots is perpendicular to the opening. The elastic connector is snapped into the pair of connecting slots.

[0018] Optionally, the elastic connector includes a plug-in portion and a connecting portion disposed at one end of the plug-in portion. The plug-in portion is V-shaped, and the connecting portion is disposed at one end of the V-shaped opening. The connecting portion is snapped into the connecting groove, and the plug-in portion is inserted into the mounting port.

[0019] Optionally, a rubber sleeve is provided on the side of the connecting part facing the connecting groove, and the rubber sleeve is connected to the connecting part by a snap-fit ​​structure.

[0020] Optionally, the snap-fit ​​structure includes a slot and a block, the block being disposed on the side of the rubber sleeve facing the connecting portion, and the slot being disposed on the side of the connecting portion facing the rubber sleeve; or

[0021] The locking block is located on the side of the connecting part facing the rubber sleeve, and the locking groove is located on the side of the rubber sleeve facing the connecting part;

[0022] The card slot and the card block are matched and connected.

[0023] Optionally, the card block is provided with a receiving groove, and the receiving groove is provided with a U-shaped elastic element.

[0024] Optionally, the mounting plate has mounting holes, the low-voltage switchgear has threaded holes, and bolts are installed in the mounting holes to fix the mounting plate and the low-voltage switchgear together.

[0025] The present invention provides a structural component for preventing burn-out of the low-voltage switchgear in a transformer substation. This component is installed inside the switchgear and includes at least one temperature sensor located near the copper busbars. The temperature sensors are electrically connected to a temperature and humidity controller. When the temperature monitored by one of the temperature sensors exceeds the set value of the controller, the controller sends a signal to the trip circuit on the high-voltage side of the switchgear. This causes the electrical components inside the switchgear to stop working, allowing for cooling, replacement of the copper busbar components, or subsequent maintenance and repair by personnel. This prevents burn-out of the switchgear and avoids significant economic losses. Furthermore, the temperature and humidity controller is detachably connected to the side wall of the switchgear, improving its installation flexibility and ensuring a safe distance between the components inside the switchgear and the controller, preventing mutual interference during operation and improving the reliability and stability of the structural component.

[0026] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a structural component according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1A schematic diagram of the connection between the elastic connector, the fixing plate, and the connecting groove in the embodiment shown.

[0030] Figure 3 for Figure 1 A schematic diagram showing the connection of the card block, card slot, and U-shaped elastic element in the embodiment shown.

[0031] Figure 4 This is a connection diagram of a temperature and humidity controller according to an embodiment of the present invention.

[0032] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0033] 1. Low-voltage switchgear, 2. Temperature and humidity controller, 3. Temperature sensor, 5. Connecting component, 6. Mounting plate, 7. Connecting plate, 8. Mounting port, 9. Flexible connector, 10. Fixing plate, 11. Connecting groove, 12. Rubber sleeve, 13. Mounting hole, 14. Bolt, 15. Snap-fit ​​structure, 16. Clip, 17. Slot, 18. U-shaped elastic element, 19. Gooseneck tube. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Before providing a further detailed description of the embodiments of this utility model, the directional terms used in the embodiments of this utility model, such as "upper part", "lower part" and "side part", do not have the meaning of limiting the scope of protection of this utility model.

[0036] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0037] The copper busbars of the low-voltage switchgear in the transformer substation overheat during operation, causing the switchgear to malfunction. Currently, there are no effective prevention and monitoring methods to detect these malfunctions. However, prolonged overheating of the copper busbars can lead to the burnout of the switchgear. Therefore, the structural components of this application can detect overheating of the copper busbars in a timely manner, allowing for power-off replacement and maintenance, thus preventing more serious safety accidents.

[0038] like Figures 1 to 4 As shown, one embodiment of this utility model provides a structural component to prevent the low-voltage switchgear 1 of the transformer substation from burning out. The structural component is disposed inside the low-voltage switchgear 1 and includes:

[0039] Temperature sensor 3, at least one temperature sensor 3 is disposed at the copper busbar;

[0040] Temperature and humidity controller 2 is connected to temperature sensor 3, and temperature and humidity controller 2 is set on the side wall of low-voltage cabinet 1 of transformer substation via connecting member 5. Connecting member 5 is fixedly connected to the side wall, and temperature and humidity controller 2 is detachably connected to connecting member 5. Temperature and humidity controller 2 is also connected to the trip circuit on the high-voltage side of low-voltage cabinet 1 of transformer substation.

[0041] The structural components are housed within the low-voltage switchgear 1 of the transformer substation. Each component includes at least one temperature sensor 3 located near the copper busbar. The temperature sensor 3 is electrically connected to a temperature and humidity controller 2. When the temperature monitored by one of the temperature sensors 3 exceeds the set value of the temperature and humidity controller 2, the controller sends a signal to the trip circuit on the high-voltage side of the low-voltage switchgear 1. This causes the electrical components within the switchgear 1 to stop working, allowing for cooling, replacement of the copper busbar components, or subsequent maintenance and repair by personnel. This prevents the switchgear 1 from burning out and causing significant economic losses. Furthermore, the temperature and humidity controller 2 is detachably connected to the side wall of the switchgear 1, improving its installation flexibility and ensuring a safe distance between the components within the switchgear 1 and the controller, preventing mutual interference during operation and enhancing the reliability and stability of the structural components.

[0042] It should be noted that there are also some problems with installing the temperature and humidity controller 2 inside the low-voltage cabinet 1 of the transformer substation. First, the rear wall of the low-voltage cabinet 1, where electrical components are placed, is already full and cannot accommodate the temperature and humidity controller 2. Second, if the temperature and humidity controller 2 is placed at the door opening, on the one hand, the connection length between the temperature and humidity controller 2 and other components must be redundant to ensure that the connection wires are not broken when the door is opened; on the other hand, the terminal face is directly facing the electrical components, which can easily cause interference and affect the normal operation of the low-voltage cabinet 1. Therefore, the temperature and humidity controller 2 can only be placed on the side wall of the low-voltage cabinet 1. However, if it is directly fixed to the side wall, and the back of the terminal is directly fixed to the side wall, the terminal will be perpendicular to the electrical components, which cannot completely avoid interference. If the terminal side is directly away from the components, the side of the temperature and humidity sensor is directly fixed to the side wall of the low-voltage cabinet 1, which is inconvenient for replacement, and the fixed position cannot be adjusted to avoid the safety distance for interference. Therefore, this application solves the above problem by fixing a connecting component 5 to the side wall of the low-voltage switchgear 1, and detachably connecting the temperature and humidity controller 2 to the connecting component 5.

[0043] Furthermore, the temperature setting of the temperature and humidity controller 2 is adjusted based on the maximum normal operating temperature at the temperature monitoring location (near the copper busbar), taking into account a certain temperature margin. After installing the temperature sensor 3 and the temperature and humidity controller 2, the temperature of the temperature and humidity controller 2 can be set to the maximum normal operating temperature + 10℃. This ensures that when the temperature at the copper busbar is abnormal, the tripping circuit on the high-voltage side is disconnected, while preventing the transformer substation from tripping erroneously, thus ensuring the reliability and stability of the low-voltage cabinet 1. The highest operating temperature near the copper busbar inside the low-voltage cabinet 1 can reach 90℃. Therefore, the temperature of the temperature and humidity controller 2 can be set to 100℃. When the highest temperature monitored by multiple temperature sensors 3 is not less than 100℃, this information is transmitted to the temperature and humidity controller 2, which then controls the tripping circuit to disconnect, cutting off the circuit and preventing the copper busbar from continuing to heat up and causing a safety accident.

[0044] In one feasible implementation, the structural components further include:

[0045] Humidity sensors: Multiple humidity sensors are installed inside the low-voltage cabinet 1 of the transformer substation. The humidity sensors are configured to monitor the humidity inside the low-voltage cabinet 1 of the transformer substation. The humidity component is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller 2.

[0046] The electrical components in the low-voltage switchgear 1 of the transformer substation have strict requirements regarding humidity. Excessive or insufficient humidity may cause the performance of the electrical components to deteriorate, be damaged, or even fail. For example, excessive humidity may cause the electrical components to become damp, affecting their normal operation, while insufficient humidity may lead to static electricity, compromising the safety of the low-voltage switchgear 1.

[0047] It should be noted that when the highest humidity detected by multiple humidity sensors exceeds 85%, a signal is transmitted to temperature and humidity controller 2. Temperature and humidity controller 2 then controls the trip circuit to disconnect, cutting off the circuit and preventing discharge, short circuit, or corrosion of components. When the average temperature of multiple temperature and humidity sensors is between 60% and 85%, the operator needs to turn on the dehumidifier fan inside the low-voltage cabinet 1 to dehumidify the interior of the cabinet.

[0048] In one feasible implementation, such as Figure 4 As shown, the first and second terminals of the temperature and humidity controller 2 are connected to the power supply, the temperature sensor 3 is connected to the fifteenth and sixteenth terminals of the temperature and humidity controller 2, and the humidity sensor is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller 2.

[0049] In this system, the low-voltage cabinet 1 of the transformer substation selects a 230V backup power supply and connects it to the first and second terminals of the temperature and humidity controller 2. The temperature sensor 3 is connected in parallel to the fifteenth and sixteenth terminals of the temperature and humidity controller 2. The humidity sensor is connected in parallel to the seventeenth and eighteenth terminals of the temperature and humidity controller 2, and is connected in parallel with the temperature sensor 3, so that they do not interfere with each other and are monitored separately. The fifth and sixth terminals of the temperature and humidity controller 2 are connected to the trip circuit on the high-voltage side of the low-voltage cabinet 1 of the transformer substation. The trip circuit is controlled to disconnect based on the temperature monitored by the temperature sensor 3 and the humidity monitored by the humidity sensor.

[0050] For example, the temperature and humidity controller 2 can be a WSK-S-(TH) type temperature sensor 3 and a WSK-S-(TH) type adjustable temperature controller. Figure 4 The 2ZJ and BWD devices are connected to the original high-voltage side trip circuit.

[0051] By incorporating the temperature sensor 3, humidity sensor, and temperature and humidity controller 2 of this application, the temperature and humidity inside the transformer low-voltage cabinet 1 can be continuously monitored. When the temperature and humidity are abnormal, the trip circuit is disconnected, the power supply is isolated, and the internal current overheats, thereby burning out the transformer low-voltage cabinet 1. This configuration increases the reliability of the transformer low-voltage cabinet 1, avoids power generation loss due to equipment burnout, ensures the operating efficiency of the power plant, and improves economic efficiency. It also improves the stability of the transformer low-voltage cabinet 1, reduces the workload of staff, and enhances the reliability and power generation efficiency of the transformer low-voltage cabinet 1.

[0052] In one feasible implementation, such as Figure 1 As shown, the connecting member 5 includes:

[0053] Mounting plate 6 is fixedly connected to the side wall of the low-voltage switchgear 1 of the transformer substation;

[0054] The connecting plate 7 is connected to the mounting plate 6 via the gooseneck tube 19, and the connecting plate 7 is provided with a mounting port 8.

[0055] The elastic connector 9 is installed inside the mounting port 8, and the elastic connector 9 is detachably connected to the temperature and humidity controller 2.

[0056] The connecting component 5 includes a mounting plate 6 with mounting holes 13 and bolts 14 inserted in the holes. The mounting plate 6 is fixedly connected to the side wall of the low-voltage switchgear 1 via the bolts 14. A connecting plate 7 is connected to the mounting plate 6 via a gooseneck tube 19, creating a certain distance between the mounting plate 6 and the connecting plate 7 to facilitate tightening and loosening of the bolts 14. The gooseneck tube 19 allows the temperature and humidity controller 2 to face in any direction, ensuring a safety margin for both the controller and electrical components. By mounting the temperature and humidity sensor on the side, it also ensures that one side of the wiring terminals faces away from the electrical components, preventing interference.

[0057] In one feasible implementation, such as Figure 2 As shown, a fixing plate 10 is provided on the side of the temperature and humidity controller 2 away from the wiring terminals. The fixing plate 10 has an opening and a pair of connecting slots 11. The opening and the connecting slots 11 are connected. The line connecting the pair of connecting slots 11 is perpendicular to the opening. The elastic connector 9 is snapped into the pair of connecting slots 11.

[0058] It should be noted that a fixing plate 10 can be installed on the side of the temperature and humidity sensor away from the wiring terminals. The fixing plate 10 can be detachably connected to the connecting plate 7. However, due to vibrations caused by noise inside the low-voltage cabinet 1, if the gooseneck tube 19 is directly connected to the fixing plate 10 through the connecting plate 7, the vibration will be directly transmitted to the temperature and humidity controller 2, which may cause the connecting wires to loosen and pose a short circuit risk. Therefore, an elastic connector 9 is installed between the connecting plate 7 and the fixing plate 10. The elastic connector 9 absorbs noise vibrations, ensuring the reliability and safety of the temperature and humidity controller 2. An elastic plate is chosen as the elastic component instead of a spring to avoid the spring shaking affecting the stability of the temperature and humidity controller 2.

[0059] The connecting plate 7 has a mounting hole 13, and the elastic connector 9 is inserted into the mounting hole 13. The end of the elastic connector 9 away from the mounting plate 6 is detachably connected to the fixing plate 10 on the temperature and humidity sensor.

[0060] In one feasible implementation, such as Figure 2 As shown, the elastic connector 9 includes a plug-in part and a connecting part disposed at one end of the plug-in part. The plug-in part is V-shaped, and the connecting part is disposed at one end of the V-shaped opening. The connecting part is snapped into the connecting groove 11, and the plug-in part is inserted into the mounting port 8.

[0061] Specifically, the V-shaped connector is inserted into the mounting port 8. Because it is an elastic plate, the mounting port 8 can exert pressure on the connector, ensuring the stability and reliability of the connection between the connector and the mounting port 8. The connecting part extends away from the inside of the V-shape and is snapped into the connecting groove 11, realizing the detachable connection between the elastic connector 9 and the temperature and humidity controller 2.

[0062] In one feasible implementation, such as Figure 3 As shown, a rubber sleeve 12 is provided on the side of the connecting part facing the connecting groove 11, and the rubber sleeve 12 is connected to the connecting part through a snap-fit ​​structure 15.

[0063] The snap-fit ​​structure 15 includes a snap-fit ​​groove 17 and a snap-fit ​​block 16. The snap-fit ​​block 16 is located on the side of the rubber sleeve 12 facing the connecting part, and the snap-fit ​​groove 17 is located on the side of the connecting part facing the rubber sleeve 12; or

[0064] The locking block 16 is located on the side of the connecting part facing the rubber sleeve 12, and the locking groove 17 is located on the side of the rubber sleeve 12 facing the connecting part;

[0065] The slot 17 and the block 16 are matched and connected. The block 16 has a receiving groove, and the receiving groove has a U-shaped elastic element 18.

[0066] It should be noted that the following explanation uses the example of a locking block 16 located in the rubber sleeve 12 and a locking groove 17 located in the connecting part. The outer shape of the locking block 16 matches the inner wall shape of the locking groove 17, and a dovetail shape can be provided to ensure the reliability and stability of the connection. Furthermore, a receiving groove can be provided in the locking block 16, and a U-shaped elastic element 18 is provided in the receiving groove. During installation, the locking block 16 slides into the rubber sleeve 12 from the side of the connecting part. Usually, the locking block 16 and the rubber sleeve 12 are made of the same material. The locking groove 17 can compress the locking block 16. Under the elastic force of the U-shaped elastic element 18, the locking block 16 also applies a counterforce to the locking groove 17, ensuring the reliability of the connection between the elastic connector 9 and the fixing plate 10 of the temperature and humidity controller 2.

[0067] In one feasible implementation, the structural components also include a fan disposed in the low-voltage cabinet 1 of the transformer substation, and the fan is electrically connected to the temperature and humidity controller 2.

[0068] When the highest temperature monitored by the temperature sensor 3 is between 70°C and 100°C, the fan inside the low-voltage cabinet 1 can be turned on by the temperature and humidity controller 2 to cool down the low-voltage cabinet 1, thereby extending the service life and maintenance interval of the low-voltage cabinet 1.

[0069] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0070] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0071] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A structural assembly for preventing burnout of a box transformer low voltage cabinet, said structural assembly being disposed within said box transformer low voltage cabinet, characterized by, The structural components include: Temperature sensor, at least one temperature sensor is located at the copper busbar; A temperature and humidity controller is connected to a temperature sensor and is mounted on the side wall of the low-voltage switchgear via a connecting member. The connecting member is fixedly connected to the side wall, and the temperature and humidity controller is detachably connected to the connecting member. The temperature and humidity controller is also connected to the trip circuit on the high-voltage side of the low-voltage switchgear.

2. The structural assembly for preventing the burning of a low-voltage cabinet of a box according to claim 1, characterized in that, The structural components also include: A humidity sensor, multiple humidity sensors are installed inside the low-voltage cabinet of the transformer substation. The humidity sensor is configured to monitor the humidity inside the low-voltage cabinet of the transformer substation. The humidity component is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller.

3. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 1, characterized in that, The first and second terminals of the temperature and humidity controller are connected to a power source. The temperature sensor is connected to the fifteenth and sixteenth terminals of the temperature and humidity controller, and the humidity sensor is connected to the seventeenth and eighteenth terminals of the temperature and humidity controller.

4. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 1, characterized in that, The connecting component includes: The mounting plate is fixedly connected to the side wall of the low-voltage switchgear of the transformer substation. A connecting plate is connected to the mounting plate via a gooseneck tube, and the connecting plate is provided with a mounting port. An elastic connector is installed inside the mounting port, and the elastic connector is detachably connected to the temperature and humidity controller.

5. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 4, characterized in that, The temperature and humidity controller has a fixing plate on the side away from the wiring terminals. The fixing plate has an opening and a pair of connecting slots. The opening and the connecting slots are connected. The line connecting the pair of connecting slots is perpendicular to the opening. The elastic connector is snapped into the pair of connecting slots.

6. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 5, characterized in that, The elastic connector includes a plug-in portion and a connecting portion disposed at one end of the plug-in portion. The plug-in portion is V-shaped, and the connecting portion is disposed at one end of the V-shaped opening. The connecting portion is snapped into the connecting groove, and the plug-in portion is inserted into the mounting port.

7. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 6, characterized in that, The connecting part is provided with a rubber sleeve on the side facing the connecting groove, and the rubber sleeve is connected to the connecting part by a snap-fit ​​structure.

8. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to claim 7, characterized in that, The snap-fit ​​structure includes a slot and a block, the block being disposed on the side of the rubber sleeve facing the connecting portion, and the slot being disposed on the side of the connecting portion facing the rubber sleeve; or The locking block is located on the side of the connecting part facing the rubber sleeve, and the locking groove is located on the side of the rubber sleeve facing the connecting part; The card slot and the card block are matched and connected. The card block has a receiving groove, and the receiving groove has a U-shaped elastic element.

9. The structural component for preventing burnout of the low-voltage switchgear in a transformer substation according to any one of claims 4 to 8, characterized in that, The mounting plate has mounting holes, and the low-voltage switchgear of the transformer substation has threaded holes. Bolts are installed in the mounting holes, and the bolts fix the mounting plate and the low-voltage switchgear of the transformer substation together.

10. The structural component for preventing burn-out of the low-voltage switchgear of a transformer substation according to any one of claims 1 to 8, characterized in that, The structural component also includes a fan installed inside the low-voltage cabinet of the transformer substation, and the fan is electrically connected to the temperature and humidity controller.

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