An intelligent single-phase ground fault line selection monitoring device

Abstract

This invention discloses an intelligent single-phase grounding fault location and monitoring device, relating to the field of single-phase grounding fault location and monitoring devices. The invention includes an outer casing, a grounding transformer fixedly installed on one side inside the outer casing, and a substation main body fixedly installed on the other side inside the outer casing. Heat sinks with uniform spacing are fixedly installed around the grounding transformer. The interior and bottom of the outer casing are equipped with a heat dissipation device for cooling the grounding transformer and substation main body in high-temperature weather. The heat dissipation device includes a first heat dissipation component, a water collection component, and a second heat dissipation component. This invention solves the problems of poor heat dissipation effect in high-temperature weather with air cooling and the high water source requirements and limited application of water cooling methods in existing single-phase grounding fault location and monitoring devices by using air cooling and evaporative cooling.

Description

Technical Field

[0001] This invention relates to the field of single-phase grounding fault line selection and monitoring devices, and in particular to an intelligent single-phase grounding fault line selection and monitoring device. Background Technology

[0002] In 3-35kV ungrounded neutral power systems, single-phase grounding fault location monitoring devices are required to monitor single-phase grounding faults, ensuring power quality and equipment safety. Single-phase grounding refers to single-phase grounding in 10kV (35kV) low-current grounding systems. Single-phase grounding faults are the most common faults in power distribution systems, often occurring in humid or rainy weather. They are caused by various factors such as tree obstructions, single-phase breakdown of insulators on distribution lines, single-phase breaks, and damage from small animals. Single-phase grounding not only affects the normal power supply to users but can also generate overvoltages, burn out equipment, and even cause phase-to-phase short circuits, escalating the accident. When a single-phase grounding fault occurs, the single-phase grounding fault location monitoring device will select the high-voltage grounding line. During selection, the device injects a controllable pulse current into the faulty branch by triggering a thyristor. After the zero-sequence CT of the faulty branch detects this pulse current, it is sent to the location device through the acquisition unit, realizing the location operation of the high-voltage grounding line.

[0003] Single-phase ground fault location and monitoring devices contain built-in grounding transformers and other electrical equipment that need to operate continuously. These devices generate significant heat during operation, necessitating heat dissipation. Existing heat dissipation methods typically involve creating vents on the device to allow heat to escape through the air, resulting in natural cooling. However, in high-temperature environments, natural cooling is ineffective, creating a high-temperature environment around the equipment and affecting its safe operation. To further dissipate heat, fans are used to blow away surface heat from the heating elements, achieving air cooling, or water cooling is employed. Water cooling involves continuously drawing cold water through pipes to absorb heat from the equipment's surface. For air cooling, the high ambient air temperature makes it less effective in hot weather, as the devices themselves also have a high temperature, resulting in poor heat dissipation. For water cooling, well water or tap water is required to maintain a low water temperature in hot weather, allowing the water flowing through the pipes to absorb heat and then re-enter the water for cooling. Using well water requires a sufficient water source that cannot be dried up, while using tap water requires laying water supply pipelines, resulting in high operating costs. Therefore, water cooling has high requirements for water supply and its application is quite limited.

[0004] Therefore, existing single-phase grounding fault location and monitoring devices have problems such as poor heat dissipation in high-temperature weather when air-cooled and high requirements for water source and large limitations in use when water-cooled. To address these issues, we propose an intelligent single-phase grounding fault location and monitoring device. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent single-phase grounding fault location monitoring device, which can effectively solve the problems of poor heat dissipation in high-temperature weather when using air-cooled devices and the high requirements for water source and limited application of water-cooled devices.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention is an intelligent single-phase grounding fault location and monitoring device, comprising an outer casing, a grounding transformer fixedly installed on one side inside the outer casing, and a substation main body fixedly installed on the other side inside the outer casing. The grounding transformer is equipped with heat sinks evenly spaced around its perimeter. The outer casing is equipped with heat dissipation devices for cooling the grounding transformer and the substation main body in hot weather.

[0008] The heat dissipation device includes a first heat dissipation component, a water collection component, and a second heat dissipation component. The first heat dissipation component absorbs hot air to cool the grounding transformer and the substation main body, and then directs the hot air into the water collection component, which is located underground to collect groundwater. The water collection component also cools the hot air and generates humid air. The water collection component guides the humid air into the second heat dissipation component, which absorbs heat through evaporation from the grounding transformer. The outlet of the second heat dissipation component is equipped with a suction component for airflow guidance. The first heat dissipation component absorbs heat from the surface of the grounding transformer and the interior of the substation main body, providing air cooling for these components. The water collection component absorbs groundwater. The second heat dissipation component absorbs heat from the surface of the grounding transformer. In hot weather, due to the high air temperature, air cooling is inefficient. The first heat dissipation component directs heat into the water collection component, heating and evaporating the adsorbed water. This creates humid air inside the water collection component, which then enters the second heat dissipation component for further evaporation, absorbing a significant amount of heat and providing secondary cooling. The cooling effect is more pronounced through the evaporation of humid air, achieving rapid heat dissipation from the surface of the grounding transformer and the interior of the substation. In hot weather, because the underground temperature is lower than the surface temperature, hot air cools down underground. Simultaneously, the evaporation of underground moisture by the hot air absorbs heat, preventing a significant change in the underground temperature and ensuring a good, continuous cooling capacity for the grounding transformer and substation. Furthermore, this design utilizes water evaporation for heat absorption, resulting in low water consumption. The water collection component continuously adsorbs groundwater, allowing for continuous cooling operation and making the device suitable for most regions, thus broadening its applicability.

[0009] During the heat dissipation process, the airflow is guided by the suction component, resulting in lower energy consumption and energy conservation. Furthermore, the airflow generates both wind-cooling and evaporative cooling, making more efficient use of electrical energy and fully utilizing the heat generated by the grounding transformer and substation main body, achieving higher heat dissipation efficiency and better cooling effect. The hot air exhausted from the exhaust end of the suction component is discharged to the outside of the outer casing.

[0010] The first heat dissipation component includes a first heat-conducting block disposed on one side of the grounding transformer and several heat-conducting plates integrally disposed on the side of the first heat-conducting block adjacent to the heat sink. The heat-conducting plates absorb heat from the corresponding heat sink. The first heat-conducting block has an internal air-gathering chamber, and several evenly spaced air inlets are provided on the side of the first heat-conducting block facing the heat sink. The air inlets and heat-conducting plates are alternately distributed. The first heat-conducting block is inserted into the corresponding side of the heat sink via the heat-conducting plates, facilitating installation and removal for easy maintenance. The alternating distribution of air inlets and heat-conducting plates, with multiple air inlets between every two adjacent heat-conducting plates, ensures more uniform and comprehensive heat absorption. The heat-conducting plates increase the heat conduction area between the heat sink and the first heat-conducting block. The heat-conducting plates absorb heat from the corresponding heat sink, resulting in more efficient heat dissipation from the heat sink and faster heat dissipation from the grounding transformer. The side of the first heat-conducting block away from the heat sink is insulated. Air inside the outer casing enters between the heat-conducting plates from above and below the two adjacent heat-conducting plates. This prevents the heat absorbed by the heat-conducting plates and the first heat-conducting block from easily dissipating into the air. Instead, the heat is transferred to the water collection assembly through the air inlet, preventing heat from dissipating to other parts of the outer casing. This makes the heat more concentrated and allows for more timely heat dissipation.

[0011] The water collection assembly includes a guide pipe connected to the gas-gathering chamber and the substation main body, and a water-absorbing layer fixedly installed on the annular side of the guide pipe. The guide pipe wall has several evenly spaced capillary pores. The water-absorbing layer absorbs soil moisture, which adheres to the outer wall of the guide pipe. Air flows rapidly through the guide pipe, reducing the internal air pressure and allowing moisture on the outer wall to continuously enter the guide pipe through the capillary pores. Because the guide pipe is buried underground, its internal temperature is low. Hot air entering the guide pipe from the gas-gathering chamber and the substation main body cools the air, and during the evaporation of moisture to form humid air, heat is carried away, preventing a significant rise in the internal temperature. This ensures the humidity inside the guide pipe, allowing for a continuous flow of humid air and enabling the device to operate sustainably. The capillary pores distributed around the guide pipe ensure sufficient and even distribution of moisture, facilitating the formation of humid air and increasing humidity.

[0012] The second heat dissipation component has an internal air duct, which is connected to the air outlet of the guide pipe. The second heat dissipation component includes a second heat-conducting block disposed on the other side of the grounding transformer and several heat-conducting plates integrally disposed on the side of the second heat-conducting block adjacent to the heat sink. The air duct is located inside the second heat-conducting block and the heat-conducting plates. The second heat-conducting block is inserted into the side of the corresponding heat sink via the heat-conducting plates, facilitating its installation and removal. The second heat-conducting block and heat-conducting plates absorb heat from the heat sink. The side of the second heat-conducting block away from the heat sink is insulated to reduce heat loss. Heat adheres to the second heat-conducting block and heat-conducting plates, making the heat more concentrated. Under concentrated heat conditions, humid air entering the air duct is further evaporated, carrying away a large amount of heat and rapidly cooling the second heat-conducting block and heat-conducting plates, resulting in a good cooling effect on the grounding transformer. This ensures more complete heat absorption. The steam generated during this process will not enter the interior of the outer casing, preventing steam from damaging the power equipment. The heat-conducting plate has heat transfer between its two sides and the heat sink, making the heat transfer to the second heat-conducting block and the heat-conducting plate more efficient.

[0013] The outer casing houses temperature sensors for detecting the temperature of the grounding transformer and the main transformer structure. When the temperature sensors detect that the grounding transformer and the main transformer structure have reached a certain temperature, the heat dissipation device starts working. The heat dissipation device has multiple power gradients, and its power output increases in stages as the temperature of the grounding transformer and the main transformer structure rises, thus ensuring good heat dissipation efficiency. The connection between the temperature sensors and the heat dissipation device utilizes existing technology.

[0014] Preferably, thermally conductive silicone pads are fixedly disposed on the side of each heat-conducting pad away from the air inlet and on the opposite sides of each heat-conducting plate. The thermally conductive silicone pads on the sides of each heat-conducting pad are in contact with the corresponding heat sink, and the thermally conductive silicone pads on the opposite sides of each heat-conducting plate are in contact with the corresponding heat sink. The thermally conductive silicone pads ensure more thorough, comprehensive, tight, and stable contact between the heat-conducting pads and heat-conducting plates and the corresponding heat sinks, resulting in better heat conduction.

[0015] Preferably, the water collection assembly further includes a corrosion-resistant filter layer fixedly disposed on the side of the guide pipe ring, and the water-absorbing layer is located inside the corrosion-resistant filter layer. The corrosion-resistant filter layer helps to improve the protective capability of the device, filters out impurities, and prevents sand and soil from entering the water-absorbing layer and capillaries, thus preventing capillary blockage.

[0016] Preferably, the interior of the guide tube is fixedly equipped with uniformly spaced baffles, which reduce the cross-sectional area for airflow within the guide tube. This reduced cross-sectional area facilitates increased airflow velocity within the guide tube, further reducing internal air pressure and allowing external moisture to more easily enter through capillary pores. The baffles also facilitate the formation of multiple compartments within the guide tube, increasing the surface area for moisture adhesion, the contact area between moisture and hot air, and thus the evaporation area, promoting moisture evaporation.

[0017] Preferably, a gas-gathering box is fixedly installed at the outlet end of the guide pipe. The gas-gathering box is fixedly installed inside the outer casing. Each second heat-conducting block is connected to the gas-gathering box through a pipe, and each pipe is fixedly installed on the lower side of the corresponding second heat-conducting block. The gas-gathering box is made of thermally conductive material and can absorb heat from inside the outer casing, thus achieving a certain heat dissipation effect. The gas-gathering box also ensures that the humidity and temperature of the humid air discharged from the guide pipe are mixed evenly, so that the humidity and temperature of the humid air entering each second heat-conducting block are uniform.

[0018] Preferably, a gas-gathering pipe is fixedly disposed above the second heat-conducting block. The gas-gathering pipe is fixedly connected to the upper side of each second heat-conducting block and communicates with the interior of the second heat-conducting block. The gas-gathering pipe facilitates the introduction of humid air from the gas-gathering box into different second heat-conducting blocks.

[0019] Preferably, the suction assembly includes an air pump and a vapor-water separator fixedly installed on one side inside the outer casing. The air inlet of the vapor-water separator is connected to the air outlet of the air-gathering pipe, and the air outlet of the vapor-water separator is connected to the air inlet of the air pump. An exhaust pipe is fixedly installed on the air outlet of the air pump, and the exhaust pipe extends through the upper side of one side of the outer casing and connects to the outside. The air pump acts as a guide for the overall heat dissipation device, and the vapor-water separator facilitates the removal of water vapor from the gas in the pipe at the air outlet of the second heat-conducting block, thus protecting the air pump. All pipes in the heat dissipation device are corrosion-resistant.

[0020] Preferably, a drain pipe is fixedly installed at the bottom outlet of the steam-water separator. The bottom drain end of the drain pipe penetrates the bottom of the outer casing and extends into the ground. This facilitates the conversion of water vapor discharged from the ground into moisture and reintroducing it into the ground, preventing the loss of groundwater.

[0021] Preferably, the first heat dissipation component further includes an air supply pipe fixedly disposed below the side of the first heat conduction block away from the heat sink, and an air intake pipe fixedly disposed above the air supply pipe. The air intake end of the air intake pipe is fixedly connected to the side of the transformer body and communicates with the interior of the transformer body. The air intake end of the air supply pipe communicates with the air collection chamber. The air outlet end of the air supply pipe passes through the bottom of the outer casing and communicates with the air intake end of the guide pipe.

[0022] Preferably, the outer casing is fixedly provided with a dustproof air inlet block.

[0023] The present invention has the following beneficial effects:

[0024] 1. This invention utilizes a first heat dissipation component to absorb heat from the surface of the grounding transformer and the interior of the transformer body, achieving air cooling for these components. A water collection component adsorbs groundwater, and a second heat dissipation component further adsorbs heat from the grounding transformer surface. The first heat dissipation component directs heat into the water collection component, heating and evaporating the adsorbed water, creating humid air inside. This humid air then enters the second heat dissipation component for further evaporation, absorbing a significant amount of heat and providing secondary cooling. The evaporation of humid air further enhances the cooling effect, achieving rapid heat dissipation from the grounding transformer surface and the transformer body. In hot weather, because the underground temperature is lower than the surface temperature, the hot air cools down underground. Simultaneously, the evaporation of underground water by the hot air absorbs heat, preventing a significant change in the underground temperature and ensuring a good, continuous cooling capacity for the grounding transformer and transformer body. Furthermore, this design utilizes water evaporation for heat absorption, resulting in low water consumption. The continuous adsorption of groundwater by the water collection component allows for sustained cooling operation, making the device suitable for most regions and broadening its applicability. The device solves the problems of poor heat dissipation in high-temperature weather when using air-cooled devices and the high requirements for water source and limited use of water-cooled devices when using them.

[0025] 2. This invention utilizes an air intake assembly for airflow guidance, resulting in lower energy consumption and easier energy saving. Furthermore, the airflow generates both wind-cooling and evaporative cooling, making fuller use of electrical energy and fully utilizing the heat generated by the grounding transformer and substation main body, achieving higher heat dissipation efficiency and better heat dissipation effect.

[0026] 3. In this invention, the heat-conducting sheet helps to increase the heat conduction area between the heat sink and the first heat-conducting block. The side of the first heat-conducting block furthest from the heat sink is insulated. Air from inside the outer casing enters between the heat-conducting sheets from above and below adjacent sheets, making it difficult for the heat absorbed by the heat-conducting sheets and the first heat-conducting block to dissipate into the air. Instead, the heat is transferred to the water collection assembly through the air inlet, preventing heat from dissipating to other parts of the outer casing and facilitating more concentrated heat dissipation, thus enabling more timely heat dissipation.

[0027] 4. This invention absorbs soil moisture through an absorbent layer, which then adheres to the outer wall of the guide tube. Air flows rapidly through the guide tube, lowering the internal air pressure. This allows moisture from the outer wall of the guide tube to continuously enter the interior through capillary pores. These capillary pores are distributed around the entire guide tube, ensuring ample and even moisture distribution within the tube, facilitating the formation of humid air and increasing overall humidity.

[0028] 5. This invention, through the arrangement of the second heat-conducting block and heat-conducting plate, allows humid air entering the air duct to be further evaporated under concentrated heat conditions, carrying away a large amount of heat and rapidly cooling the second heat-conducting block and heat-conducting plate, resulting in a good cooling effect on the grounding transformer. This ensures more complete heat absorption. The steam generated during this process will not enter the interior of the outer casing, avoiding damage to the power equipment. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a perspective view of an intelligent single-phase grounding fault line selection and monitoring device according to the present invention;

[0031] Figure 2 This is a three-dimensional sectional view of the structure of the intelligent single-phase grounding fault fault location and monitoring device of the present invention after removing the outer casing;

[0032] Figure 3 This invention relates to an intelligent single-phase grounding fault location and monitoring device. Figure 2 Enlarged view of section A in the middle;

[0033] Figure 4 This is a perspective view of the structure of the intelligent single-phase grounding fault location and monitoring device of the present invention after removing the outer casing;

[0034] Figure 5 This invention relates to an intelligent single-phase grounding fault location and monitoring device. Figure 4 Enlarged view of section B;

[0035] Figure 6 This is a three-dimensional sectional view of the first heat-conducting block, heat-conducting sheet, and the structure formed thereon in an intelligent single-phase grounding fault line selection and monitoring device of the present invention.

[0036] Figure 7A perspective view of the guide tube and its structure in an intelligent single-phase grounding fault fault location and monitoring device according to the present invention.

[0037] Figure 8 This invention relates to an intelligent single-phase grounding fault location and monitoring device. Figure 7 Enlarged view of section C;

[0038] Figure 9 This is a three-dimensional sectional view of the second heat-conducting block, heat-conducting plate, and the structure formed thereon in an intelligent single-phase grounding fault line selection and monitoring device of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. Outer casing; 2. Grounding transformer; 3. Heat sink; 4. First heat-conducting block; 5. Gas-gathering chamber; 6. Air inlet; 7. Guide pipe; 8. Water-absorbing layer; 9. Capillary pores; 10. Heat-conducting sheet; 11. Second heat-conducting block; 12. Heat-conducting plate; 13. Air duct; 14. Thermally conductive silicone sheet; 15. Corrosion-resistant filter layer; 16. Partition; 17. Gas-gathering box; 18. Pipe; 19. Gas-gathering pipe; 20. Air pump; 21. Gas-water separator; 22. Exhaust pipe; 23. Drain pipe; 24. Gas delivery pipe; 25. Intake pipe; 26. Dustproof air inlet block. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0043] Example:

[0044] Please see Figure 1-9 As shown, an intelligent single-phase grounding fault line selection and monitoring device includes an outer box 1, a grounding transformer 2 fixedly installed on one side inside the outer box 1, and a transformer body fixedly installed on the other side inside the outer box 1. Heat sinks 3 are evenly spaced and fixedly installed around the grounding transformer 2. Heat dissipation devices for heat dissipation of the grounding transformer 2 and the transformer body in high-temperature weather are installed inside and at the bottom of the outer box 1.

[0045] The heat dissipation device includes a first heat dissipation component, a water collection component, and a second heat dissipation component. The first heat dissipation component absorbs hot air to cool the grounding transformer 2 and the transformer main body, and then directs the hot air into the water collection component, which is located underground to collect groundwater. The water collection component also cools the hot air and generates humid air, which is then directed into the second heat dissipation component. The second heat dissipation component absorbs heat through evaporation from the grounding transformer 2. The outlet of the second heat dissipation component is equipped with a suction component for airflow guidance. The first heat dissipation component absorbs heat from the surface of the grounding transformer 2 and the interior of the transformer main body, providing air cooling for these components. The water collection component absorbs groundwater. The second heat dissipation component absorbs heat from the surface of the grounding transformer 2. In hot weather, due to the high air temperature, air cooling is inefficient. The first heat dissipation component directs heat into the water collection component, heating and evaporating the adsorbed water. This creates humid air inside the water collection component, which then enters the second heat dissipation component for further evaporation, absorbing a significant amount of heat and providing secondary cooling. The cooling effect is more pronounced through the evaporation of humid air, achieving rapid heat dissipation from the surface of the grounding transformer 2 and the interior of the substation. In hot weather, because the underground temperature is lower than the surface temperature, hot air cools down underground. Simultaneously, the evaporation of underground moisture by the hot air absorbs heat, preventing a significant change in the underground temperature and ensuring good, continuous cooling of the grounding transformer 2 and the substation. Furthermore, this design utilizes water evaporation for heat absorption, resulting in low water consumption. The water collection component continuously adsorbs groundwater, allowing for continuous cooling operation and making the device suitable for most regions, thus broadening its applicability. The device solves the problems of poor heat dissipation in high-temperature weather when using air-cooled devices and the high requirements for water source and limited use of water-cooled devices when using them.

[0046] During the heat dissipation process, the airflow is guided by the suction component, resulting in lower energy consumption and energy conservation. Furthermore, the airflow generates both wind-cooling and evaporative cooling, making more efficient use of electrical energy and fully utilizing the heat generated by the grounding transformer 2 and the transformer main body to achieve higher heat dissipation efficiency and better cooling effect. The hot air discharged from the exhaust end of the suction component is discharged to the outside of the outer casing 1.

[0047] The first heat dissipation component includes a first heat-conducting block 4 disposed on one side of the grounding transformer 2, and several heat-conducting plates 10 integrally disposed on the side of the first heat-conducting block 4 adjacent to the heat sink 3. The heat-conducting plates 10 are used to absorb heat from the corresponding heat sink 3. The first heat-conducting block 4 has an air-gathering chamber 5 inside, and several evenly spaced air inlets 6 are opened on the side of the first heat-conducting block 4 facing the heat sink 3. The air inlets 6 and the heat-conducting plates 10 are distributed alternately. The first heat-conducting block 4 is inserted into the side of the corresponding heat sink 3 through the heat-conducting plates 10, which facilitates the installation and removal of the first heat-conducting block 4 and makes maintenance convenient. The alternating distribution of air inlets 6 and heat-conducting plates 10, with multiple air inlets 6 distributed between every two adjacent heat-conducting plates 10, makes the heat absorption more uniform and comprehensive. The heat-conducting plates 10 help increase the heat conduction area between the heat sink 3 and the first heat-conducting block 4. The heat-conducting plates 10 absorb the heat from the corresponding heat sink 3, resulting in more efficient heat dissipation from the heat sink 3 and faster heat dissipation from the grounding transformer 2. The side of the first heat-conducting block 4 away from the heat sink 3 is insulated, and the air inside the outer casing 1 enters between the heat-conducting plates 10 from the top and bottom of the two adjacent heat-conducting plates 10. This makes it difficult for the heat absorbed by the heat-conducting plates 10 and the first heat-conducting block 4 to escape into the air. Instead, the heat is transferred to the water collection assembly through the air inlet 6, preventing the heat from dissipating to other parts inside the outer casing 1. This makes the heat more concentrated and thus makes the heat dissipation more timely.

[0048] The water collection assembly includes a guide pipe 7 connected to the gas-gathering chamber 5 and the substation main body, and a water-absorbing layer 8 fixedly installed on the circumferential side of the guide pipe 7. The guide pipe 7 has several evenly spaced capillary pores 9 on its wall. The water-absorbing layer 8 absorbs soil moisture, which adheres to the outer wall of the guide pipe 7. Air flows rapidly through the guide pipe 7, reducing the internal air pressure and allowing moisture on the outer wall to continuously enter the interior of the guide pipe 7 through the capillary pores 9. Because the guide pipe 7 is buried underground, its internal temperature is low. The hot air entering the guide pipe 7 from the gas-gathering chamber 5 and the substation main body cools it, and during the evaporation of moisture inside the guide pipe 7 to form humid air, heat is carried away, preventing a significant rise in the internal temperature. This facilitates humidification of the interior of the guide pipe 7, ensuring a continuous flow of humid air and enabling the device to operate sustainably. Capillary pores 9 are distributed around the flow guide tube 7, ensuring sufficient and even distribution of moisture inside the tube 7, making it easier to form humid air and increasing air humidity. After water evaporates, the absorbent layer 8 promptly absorbs the water, simultaneously preventing the formation of scale or impurities. The absorbent layer 8 uses antibacterial and anti-corrosion materials, extending its service life. This device draws water from underground, resulting in low water consumption, a simpler structure, and lower costs.

[0049] The second heat dissipation component has an internal air duct 13, which is connected to the air outlet of the guide pipe 7. The second heat dissipation component includes a second heat-conducting block 11 disposed on the other side of the grounding transformer 2, and several heat-conducting plates 12 integrally disposed on the side of the second heat-conducting block 11 adjacent to the heat sink 3. The air duct 13 is located inside the second heat-conducting block 11 and the heat-conducting plates 12. The second heat-conducting block 11 is inserted into the side of the corresponding heat sink 3 via the heat-conducting plates 12, facilitating the installation and removal of the second heat-conducting block 11. The second heat-conducting block 11 and the heat-conducting plates 12 absorb heat from the heat sink 3. The side of the second heat-conducting block 11 away from the heat sink 3 is insulated to reduce heat loss. Heat adheres to the second heat-conducting block 11 and the heat-conducting plates 12, making the heat more concentrated. Under concentrated heat conditions, humid air entering the air duct 13 is further evaporated, carrying away a large amount of heat and rapidly cooling the second heat-conducting block 11 and the heat-conducting plates 12, resulting in a good cooling effect on the grounding transformer 2. This makes heat absorption more efficient. The steam generated during this process will not enter the interior of the outer casing 1, preventing steam from damaging the power equipment and avoiding increased moisture inside the device, which could cause damage. The suction assembly will guide the absorbed hot air to the outside, preventing heat from accumulating inside the outer casing 1 and facilitating the reduction of the internal temperature of the outer casing 1. Both sides of the heat-conducting plate 12 are connected to the heat sink 3 for heat transfer, resulting in higher efficiency in transferring heat to the second heat-conducting block 11 and the heat-conducting plate 12.

[0050] The outer casing 1 houses a temperature sensor for detecting the temperature of the grounding transformer 2 and the main transformer body. When the temperature sensor detects that the temperature of the grounding transformer 2 and the main transformer body reaches a certain value, the heat dissipation device starts to work. The heat dissipation device has multiple power gradients, and its working power increases in stages as the temperature of the grounding transformer 2 and the main transformer body rises, thereby ensuring good heat dissipation efficiency and achieving intelligent heat dissipation. The connection between the temperature sensor and the heat dissipation device adopts existing technology.

[0051] Each heat-conducting fin 10 has a thermally conductive silicone pad 14 fixedly installed on the side away from the air inlet 6 and on the opposite sides of each heat-conducting plate 12. The thermally conductive silicone pad 14 on the side of each heat-conducting fin 10 is in contact with the corresponding heat sink 3, and the thermally conductive silicone pads 14 on the opposite sides of each heat-conducting plate 12 are in contact with the corresponding heat sink 3. The thermally conductive silicone pads 14 make the contact between the heat-conducting fins 10 and heat-conducting plates 12 and the corresponding heat sinks 3 more sufficient, more comprehensive, tighter, and more stable, resulting in better heat conduction.

[0052] The water collection assembly also includes a corrosion-resistant filter layer 15 fixedly installed on the annular side of the guide pipe 7, with the water-absorbing layer 8 located inside the corrosion-resistant filter layer 15. The corrosion-resistant filter layer 15 enhances the protective capability of the device, filters out impurities, and prevents sand from entering the water-absorbing layer 8 and capillary pores 9, thus preventing the capillary pores 9 from becoming clogged.

[0053] The guide pipe 7 is internally fitted with uniformly spaced baffles 16, which reduce the cross-sectional area for airflow within the guide pipe 7. This reduced cross-sectional area increases the airflow velocity within the guide pipe 7, further lowering the internal air pressure and allowing external moisture to more easily enter through the capillary pores 9. The baffles 16 also facilitate the formation of multiple compartments within the guide pipe 7, increasing the surface area for moisture adhesion, the contact area between moisture and hot air, and ultimately, the surface area for moisture evaporation, thus promoting evaporation.

[0054] The outlet end of the guide pipe 7 is fixedly equipped with an air-gathering box 17, which is fixedly installed inside the outer casing 1. Each second heat-conducting block 11 is connected to the air-gathering box 17 through a pipe 18, and each pipe 18 is fixedly installed on the lower side of the corresponding second heat-conducting block 11. The air-gathering box 17 is made of thermally conductive material and can absorb heat from the inside of the outer casing 1, thus achieving a certain heat dissipation effect. The air-gathering box 17 also ensures that the humidity and temperature of the humid air discharged from the guide pipe 7 are mixed evenly, so that the humidity and temperature of the humid air entering each second heat-conducting block 11 are uniform.

[0055] A gas-gathering pipe 19 is fixedly installed above the second heat-conducting block 11. The gas-gathering pipe 19 is fixedly connected to the upper side of each second heat-conducting block 11 and communicates with the interior of the second heat-conducting block 11. The gas-gathering pipe 19 facilitates the introduction of humid air from the gas-gathering box 17 into different second heat-conducting blocks 11.

[0056] The suction assembly includes an air pump 20 and a vapor-water separator 21 fixedly installed inside one side of the outer casing 1. The air inlet of the vapor-water separator 21 is connected to the air outlet of the air collecting pipe 19, and the air outlet of the vapor-water separator 21 is connected to the air inlet of the air pump 20. An exhaust pipe 22 is fixedly installed at the air outlet of the air pump 20, and the air outlet of the exhaust pipe 22 passes through the upper side of one side of the outer casing 1 and is connected to the outside. The air pump 20 serves as a guide for the overall heat dissipation device, and the vapor-water separator 21 facilitates the removal of water vapor from the air outlet of the second heat-conducting block 11, thus protecting the air pump 20. All air guide pipes in the heat dissipation device are corrosion-resistant pipes.

[0057] The bottom outlet of the vapor-water separator 21 is fixedly equipped with a drain pipe 23, which penetrates the bottom of the outer casing 1 and extends into the ground. This facilitates the conversion of water vapor discharged from the ground into moisture and reintroducing it into the ground, preventing the loss of ground moisture.

[0058] The first heat dissipation component further includes an air supply pipe 24 fixedly disposed below the side of the first heat-conducting block 4 away from the heat sink 3, and an air intake pipe 25 fixedly disposed above the air supply pipe 24. The air intake end of the air intake pipe 25 is fixedly connected to the side of the transformer main body and communicates with the interior of the transformer main body. The air intake end of the air supply pipe 24 communicates with the air collection chamber 5, and the air outlet end of the air supply pipe 24 passes through the bottom of the outer casing 1 and communicates with the air intake end of the guide pipe 7. This facilitates the introduction of hot air from the first heat-conducting block 4 and the transformer main body into the guide pipe 7.

[0059] The outer casing 1 is fixedly equipped with a dustproof air intake block 26.

[0060] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The preferred embodiments of the present invention disclosed above are merely for the purpose of illustrating the present invention. The preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent single-phase grounding fault location and monitoring device, characterized in that: It includes an outer casing (1), a grounding transformer (2) fixedly installed on one side inside the outer casing (1), and a transformer body fixedly installed on the other side inside the outer casing (1). The grounding transformer (2) is fixedly provided with heat sinks (3) evenly spaced around it. The outer casing (1) is provided with heat dissipation devices for heat dissipation of the grounding transformer (2) and transformer body in high-temperature weather. The heat dissipation device includes a first heat dissipation component, a water collection component, and a second heat dissipation component. The first heat dissipation component is used to draw in hot air to cool the grounding transformer (2) and the transformer body, and to pass the hot air into the water collection component. The water collection component is installed underground to collect groundwater. The water collection component is also used to cool the hot air and generate humid air. The water collection component guides the humid air into the second heat dissipation component. The second heat dissipation component is used to evaporate and absorb heat from the grounding transformer (2). The air outlet of the second heat dissipation component is provided with a suction component for guiding the airflow. The first heat dissipation component includes a first heat-conducting block (4) disposed on one side of the grounding transformer (2) and a plurality of heat-conducting plates (10) integrally disposed on the side of the first heat-conducting block (4) adjacent to the heat sink (3). The heat-conducting plates (10) are used to absorb the heat on the corresponding heat sink (3). An air-gathering chamber (5) is provided inside the first heat-conducting block (4). A plurality of evenly spaced air inlets (6) are provided on the side of the first heat-conducting block (4) facing the heat sink (3). The air inlets (6) and the heat-conducting plates (10) are distributed alternately. The water collection assembly includes a flow guide pipe (7) that is connected to the gas collection chamber (5) and the inside of the substation body, and a water absorption layer (8) that is fixedly installed on the ring side of the flow guide pipe (7). The pipe wall of the flow guide pipe (7) is provided with a number of uniformly spaced capillary pores (9). The second heat dissipation component has an air duct (13) inside, and the air duct (13) is connected to the air outlet of the guide pipe (7). The second heat dissipation component includes a second heat conduction block (11) disposed on the other side of the grounding transformer (2) and a plurality of heat conduction plates (12) integrally disposed on the side of the second heat conduction block (11) near the heat sink (3). The air duct (13) is opened inside the second heat conduction block (11) and the heat conduction plates (12).

2. The intelligent single-phase grounding fault location and monitoring device according to claim 1, characterized in that: Each of the heat-conducting pads (10) has a thermally conductive silicone pad (14) fixedly disposed on the side away from the air inlet (6) and on the opposite sides of each of the heat-conducting plates (12). The thermally conductive silicone pad (14) on the side of each heat-conducting pad (10) is attached to the corresponding heat sink (3), and the thermally conductive silicone pad (14) on the opposite sides of each of the heat-conducting plates (12) is attached to the corresponding heat sink (3).

3. The intelligent single-phase grounding fault location and monitoring device according to claim 2, characterized in that: The water collection assembly also includes a corrosion-resistant filter layer (15) fixedly installed on the annular side of the guide pipe (7), and the water-absorbing layer (8) is located inside the corrosion-resistant filter layer (15).

4. The intelligent single-phase grounding fault location and monitoring device according to claim 3, characterized in that: The guide tube (7) is fixedly provided with uniformly spaced baffles (16), which are used to reduce the cross-sectional area of ​​the guide tube (7) for air flow.

5. The intelligent single-phase grounding fault location and monitoring device according to claim 4, characterized in that: The outlet end of the guide pipe (7) is fixedly provided with a gas gathering box (17), which is fixedly installed inside the outer box (1). Each second heat conduction block (11) is connected to the gas gathering box (17) through a pipe (18), and each pipe (18) is fixedly installed on the side below the corresponding second heat conduction block (11).

6. The intelligent single-phase grounding fault location and monitoring device according to claim 5, characterized in that: A gas-gathering pipe (19) is fixedly installed above the second heat-conducting block (11). The gas-gathering pipe (19) is fixedly connected to the upper side of each second heat-conducting block (11) and communicates with the interior of the second heat-conducting block (11).

7. The intelligent single-phase grounding fault location and monitoring device according to claim 6, characterized in that: The suction assembly includes an air pump (20) and a steam-water separator (21) fixedly installed inside one side of the outer casing (1). The air inlet of the steam-water separator (21) is connected to the air outlet of the air collection pipe (19). The air outlet of the steam-water separator (21) is connected to the air inlet of the air pump (20). An exhaust pipe (22) is fixedly installed at the air outlet of the air pump (20). The air outlet of the exhaust pipe (22) passes through the upper side of one side of the outer casing (1) and is connected to the outside.

8. The intelligent single-phase grounding fault location and monitoring device according to claim 7, characterized in that: The bottom outlet of the gas-water separator (21) is fixedly equipped with a drain pipe (23), the bottom drain end of the drain pipe (23) penetrates the bottom of the outer box (1) and extends into the ground.

9. The intelligent single-phase grounding fault location and monitoring device according to claim 8, characterized in that: The first heat dissipation component also includes an air supply pipe (24) fixedly disposed below the side of the first heat conduction block (4) away from the heat sink (3), and an air intake pipe (25) fixedly disposed above the side of the air supply pipe (24). The air intake end of the air intake pipe (25) is fixedly connected to the side of the transformer body and communicates with the inside of the transformer body. The air intake end of the air supply pipe (24) is connected to the air gathering chamber (5). The air outlet end of the air supply pipe (24) passes through the bottom of the outer casing (1) and is connected to the air intake end of the guide pipe (7).

10. The intelligent single-phase grounding fault location and monitoring device according to claim 9, characterized in that: The outer casing (1) is fixedly provided with a dustproof air inlet block (26) on its casing wall.

Images