High-voltage switch cabinet

Abstract

The invention discloses a high-voltage switch cabinet, and belongs to the technical field of high-voltage switch cabinets, the high-voltage switch cabinet comprises a cabinet body, a material changing part is arranged in the inner side wall of the cabinet body, the material changing part comprises a rotating disc rotationally connected in the inner side wall of the back side of the cabinet body, and storage grooves are formed in the outer surface of the rotating disc in an annular array mode; a first baffle is slidably connected to the front end of the interior of the storage groove, L-shaped strips are fixedly connected to the left side and the right side of the first baffle, moving grooves are formed in the left side and the right side of the interior of the storage groove in a penetrating mode, and the L-shaped strips are slidably connected to the interiors of the moving grooves. The drying agent bag can be rapidly replaced after losing efficacy, when the drying agent bag absorbs moisture in the cabinet body, if the drying agent bag expands after absorbing excessive moisture and the moisture absorption efficiency is reduced, the drying agent bag in the storage groove automatically falls off and is rapidly replaced, and then the absorption efficiency of the moisture in the cabinet body is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear, and more specifically, to a high-voltage switchgear. Background Technology

[0002] High-voltage switchgear refers to electrical products with voltage levels ranging from 3.6kV to 550kV used in power systems for power generation, transmission, distribution, power conversion, and consumption, which play roles in switching, control, or protection. It mainly includes several categories such as high-voltage circuit breakers, high-voltage disconnecting switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. The high-voltage switchgear manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry and occupies a very important position in the entire power industry.

[0003] The core compartments of a high-voltage switchgear include a busbar compartment, a circuit breaker compartment, a cable compartment, and a relay and instrument compartment. The busbar compartment is used to connect the main busbar, and is supported by insulators and isolated from faults. The circuit breaker compartment is used to install vacuum circuit breakers or SF6 circuit breakers. The handcart-type design facilitates maintenance, and the static contact curtain (valve) ensures operational safety. The cable compartment is used to house primary cables and connecting components and provides maintenance space. The relay and instrument compartment is used to centralize secondary equipment such as relay protection devices, instruments, and indicator lights.

[0004] In existing technologies, in high-humidity environments, cables in high-voltage switchgear will generate condensation due to heat and temperature differences. When the high-voltage switchgear is shut down, the temperature drops sharply, which accelerates condensation. When the condensation adheres to the surface of the insulating materials (such as bushings and contact boxes), it reduces their insulation resistance, which in turn can lead to creepage, flashover, or even short circuits. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a high-voltage switchgear.

[0006] To solve the above problems, the present invention adopts the following technical solution, which can realize the absorption of moisture inside the cabinet through the desiccant pack, and quickly replace the desiccant pack when it expands after absorbing too much moisture and the moisture absorption efficiency decreases.

[0007] A high-voltage switchgear includes a cabinet and electrical components disposed inside the cabinet. Multiple cables are disposed on the lower side of the electrical components. A drive motor is disposed on the back side of the cabinet. A material changing component is disposed inside the inner wall of the cabinet. The material changing component includes a turntable rotatably connected to the inner wall of the back side of the cabinet.

[0008] The outer surface of the turntable has storage slots arranged in a ring array. The front end of the inner side of the storage slot is slidably connected to a first baffle. L-shaped strips are fixedly connected to both sides of the first baffle. Movable slots are opened through both sides of the inner side of the storage slot. The L-shaped strips are slidably connected inside the movable slots. A first pressure spring is fixedly connected in parallel between the front side of the horizontal plate of the L-shaped strip and the front side of the inner side of the movable slot. Movable plates are slidably connected through both sides of the back end of the storage slot. The inner and outer sides of the turntable are provided with self-locking components.

[0009] Furthermore, the self-locking component includes a second pressure spring fixedly connected between the extension of the left and right movable plates and the outer surface of the turntable. A guide groove is provided through the front side of the interior of the movable plate. Limiting grooves are provided on the upper and lower sides of the guide groove near the vertical part of the L-shaped bar. Embedding grooves are provided on the upper and lower sides of the vertical part of the L-shaped bar. A locking block is slidably connected inside the embedding groove. The side of the locking block on the upper and lower sides that is far apart from each other slides and presses against the side of the limiting groove on the upper and lower sides that is far apart from each other. A third pressure spring is fixedly connected between the embedding groove and the side of the locking block near the vertical part of the L-shaped bar.

[0010] Furthermore, the vertical portion of the L-shaped strip extends into the interior of the guide groove, and the L-shaped strip is slidably connected to the interior of the guide groove. An air vent is provided on the back side of the cabinet interior, and the air vent is connected to the storage groove. A discharge cavity is provided on the back side of the cabinet, and the discharge cavity is bent.

[0011] Furthermore, the cabinet is equipped with a warning component on both its inner and outer sides, and the warning component includes a support plate that is slidably connected to the lower side of the discharge chamber.

[0012] Furthermore, a fourth pressure spring is fixedly connected between the lower side of the support plate and the lower inner side of the discharge chamber, a striker is fixedly connected to the lower side of the support plate, a pressure sensor is provided on the lower inner side of the discharge chamber, the striker moves downward and presses against the upper side of the pressure sensor, and the fourth pressure spring is sleeved on the outside of the pressure sensor.

[0013] Furthermore, an alarm is fixedly connected to the back side of the cabinet, multiple indicator lights are fixedly connected to the back side of the cabinet, and a controller is provided on the upper side of the back end inside the cabinet.

[0014] Furthermore, the cabinet is equipped with dehumidification components on both its inner and outer sides, and the dehumidification components include a partition fixedly connected to the inside of the cabinet.

[0015] Furthermore, the front side of the partition has multiple hollow slots, the back side of the partition is fixedly connected to a fixed frame, the back side of the fixed frame is hinged to a second baffle, the back side of the upper end of the cabinet is fixedly connected to an air supply pipe, the outer surface of the air supply pipe has through holes arranged in a ring array, the air supply pipe has a fan inside, the air supply pipe is connected to the interior of the cabinet, multiple cables pass through the second baffle, the outer surface of the cables is fixedly connected to the front and rear sides with fixing rings, the front and rear fixing rings are respectively pressed and contacted with the front and rear sides of the second baffle, and the upper side of the hollow slot is fixedly connected to a first absorbent cotton, the first absorbent cotton is in the shape of an inverted "U", and the first absorbent cotton wraps around the outside of the cable.

[0016] Furthermore, a collection assembly is provided on both the inner and outer sides of the partition, and the collection assembly includes a fixing plate fixedly connected to the back side of the partition.

[0017] Furthermore, a second absorbent cotton is fixedly connected to the upper side of the fixing plate, and a guide strip is fixedly connected to the lower side inside the hollow groove. The guide strip is inclined, and the upper side of the guide strip is pressed and contacted with the outer side of the cable. The second absorbent cotton is located behind and below the guide strip.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The present invention uses a first baffle to clamp the desiccant pack in conjunction with movement. The desiccant pack can be quickly replaced after it fails. When the desiccant pack absorbs moisture inside the cabinet, if the desiccant pack absorbs too much moisture and expands, resulting in a decrease in moisture absorption efficiency, the desiccant pack inside the storage slot will automatically fall off and be quickly replaced, thereby ensuring the absorption efficiency of moisture inside the cabinet.

[0020] (2) The present invention uses a support plate to activate the indicator light after the desiccant pack is pressed to remind the user. When all the indicator lights are lit, an alarm will be issued through the alarm device. After the desiccant pack inside the storage tank is discharged, other desiccant packs will correspond to the air outlets one by one. At the same time, the number of desiccant packs inside the multiple storage tanks is displayed in real time through the indicator lights, so that the staff can quickly understand the dehumidification effect inside the cabinet.

[0021] (3) The present invention pulls the cable by the second baffle being blown by the airflow, and absorbs the condensate on the outside of the cable by the first absorbent cotton inside the hollow groove. As the air pushes the second baffle, the second baffle will pull the cable, so that the condensate on the outside of the cable is absorbed after passing through the first absorbent cotton inside the hollow groove, thereby reducing the impact of condensate on electrical components. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0024] Figure 3 This is a cross-sectional view of the cabinet structure of the present invention;

[0025] Figure 4 This is a cross-sectional view of the partition of the present invention;

[0026] Figure 5 This is a cross-sectional view of the fixing frame of the present invention;

[0027] Figure 6 This is a cross-sectional view of the turntable of the present invention;

[0028] Figure 7 This is a cross-sectional view of the movable plate of the present invention;

[0029] Figure 8 This is a cross-sectional view of the L-shaped strip of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Cabinet; 11. Electrical components; 12. Cables; 13. Drive motor; 2. Material changing components; 21. Turntable; 22. Storage slot; 23. First baffle; 24. L-shaped strip; 25. Moving slot; 26. First pressure spring; 27. Moving plate; 28. Self-locking component; 281. Second pressure spring; 282. Guide slot; 283. Limiting slot; 284. Embedded slot; 285. Locking block; 286. Third pressure spring; 287. Air outlet; 288. Discharge chamber; 29. ​​Warning group Components; 291, Support plate; 292, Fourth pressure spring; 293, Strike pin; 294, Pressure sensor; 295, Alarm device; 296, Indicator light; 297, Controller; 3, Dehumidification components; 31, Partition; 311, Hollow groove; 32, Fixing frame; 33, Air supply pipe; 34, Through hole; 35, Fan; 36, Fixing ring; 37, Second baffle; 38, First absorbent cotton; 39, Collection assembly; 391, Fixing plate; 392, Second absorbent cotton; 393, Guide strip. Detailed Implementation

[0032] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 A high-voltage switchgear includes a cabinet 1 and electrical components 11 disposed inside the cabinet 1. Multiple cables 12 are disposed on the lower side of the electrical components 11. A drive motor 13 is disposed on the back side of the cabinet 1. A material changing component 2 is disposed inside the inner wall of the cabinet 1. The material changing component 2 includes a turntable 21 rotatably connected to the inner wall of the back side of the cabinet 1.

[0034] The outer surface of the turntable 21 has a ring array of storage slots 22. The front end of the inside of the storage slot 22 is slidably connected to a first baffle 23. L-shaped strips 24 are fixedly connected to both the left and right sides of the first baffle 23. Movable slots 25 are opened through both the left and right sides inside the storage slot 22. The L-shaped strips 24 are slidably connected inside the movable slots 25. The front side of the horizontal plate of the L-shaped strip 24 and the front side of the inside of the movable slot 25 are arranged in parallel and fixedly connected to a first pressure spring 26. Movable plates 27 are slidably connected through both the left and right sides of the back end inside the storage slot 22. The inner and outer sides of the turntable 21 are provided with self-locking parts 28.

[0035] The self-locking component 28 includes a second pressure spring 281 fixedly connected between the extension of the left and right movable plates 27 and the outer surface of the turntable 21. A guide groove 282 is provided through the front side of the interior of the movable plate 27. Limiting grooves 283 are provided on the upper and lower sides of the guide groove 282 near the vertical end of the L-shaped bar 24. Embedding grooves 284 are provided on the upper and lower sides of the vertical part of the L-shaped bar 24. A locking block 285 is slidably connected inside the embedding groove 284. The side of the upper and lower locking blocks 285 that is far away from each other slides and presses against the side of the upper and lower limiting grooves 283 that is far away from each other. A third pressure spring 286 is fixedly connected between the inside of the embedding groove 284 and the side of the locking block 285 near the vertical part of the L-shaped bar 24.

[0036] The vertical portion of the L-shaped strip 24 extends into the interior of the guide groove 282, and the L-shaped strip 24 is slidably connected to the interior of the guide groove 282. An air vent 287 is provided on the back side inside the cabinet 1, and the air vent 287 is connected to the storage groove 22. A discharge cavity 288 is provided on the back side of the cabinet 1, and the discharge cavity 288 is bent.

[0037] Warning components 29 are provided on both the inner and outer sides of cabinet 1.

[0038] By adopting the above technical solution, when the electrical components 11 inside the cabinet 1 are running, if the cabinet 1 is in a high-humidity environment, the moisture inside the cabinet 1 will enter the storage groove 22 on the surface of the turntable 21 through the air outlet 287. Because the desiccant pack is locked inside the storage groove 22 by the first baffle 23 and the moving plate 27, the desiccant pack absorbs the moisture in the air. The storage groove 22 corresponding to the air outlet 287 is connected to the discharge chamber 288. As the desiccant pack continues to absorb moisture, it expands and can... The first baffle 23 is squeezed, causing the L-shaped strips 24 on both sides to press against the first pressure spring 26 inside the moving groove 25. After the L-shaped strips 24 move to the designated position, they will disengage from the guide groove 282 inside the moving plate 27. At this time, the moving block moves under the push of the second pressure spring 281, so that the ends of the two moving blocks no longer press against the desiccant pack. The desiccant pack moves downward under its own weight and enters the discharge chamber 288. As the desiccant pack disengages from the first baffle 23, the first pressure spring 26... The L-shaped strip 24 is pushed, causing it to re-enter the guide groove 282. Meanwhile, the locking block 285, located inside the embedding groove 284, is completely retracted into the embedding groove 284 under the pressure of the guide groove 282, compressing the third pressure spring 286 inside the embedding groove 284. When the locking block 285 moves to the position of the limiting groove 283 within the guide groove 282, the third pressure spring 286 inside the embedding groove 284 pushes the locking block 285, causing it to re-enter the limiting groove 283. At this point, it can be... A new desiccant pack is sent into the storage slot 22, while the desiccant pack entering the discharge chamber 288, in conjunction with the warning component 29, controls the drive motor 13 to rotate 90 degrees, so that the other storage slots 22 are aligned with the air outlet 287 and the discharge chamber 288 again. When the desiccant pack absorbs too much moisture inside the cabinet 1, if the desiccant pack expands after absorbing too much moisture, causing a decrease in moisture absorption efficiency, the desiccant pack inside the storage slot 22 will automatically fall off and be quickly replaced, thereby ensuring the absorption efficiency of moisture inside the cabinet 1.

[0039] like Figures 1 to 7 As shown, the warning component 29 includes a support plate 291 that is slidably connected to the lower side of the discharge chamber 288.

[0040] A fourth pressure spring 292 is fixedly connected between the lower side of the support plate 291 and the lower inside of the discharge chamber 288. A striker 293 is fixedly connected to the lower side of the support plate 291. A pressure sensor 294 is provided on the lower inside of the discharge chamber 288. After the striker 293 moves downward, it presses against the upper side of the pressure sensor 294. The fourth pressure spring 292 is sleeved on the outside of the pressure sensor 294.

[0041] An alarm 295 is fixedly connected to the back side of cabinet 1, and multiple indicator lights 296 are fixedly connected to the back side of cabinet 1. A controller 297 is installed on the upper side of the back end inside cabinet 1.

[0042] By adopting the above technical solution, after the desiccant package falls into the discharge chamber 288, it will fall above the support plate 291. The impact of the falling desiccant package will cause the impact pin 293 to move downwards, pressing the fourth pressure spring 292. When the impact pin 293 contacts the pressure sensor 294 inside the discharge chamber 288, the pressure sensor 294 will transmit information to the controller 297 inside the cabinet 1. The controller 297 will then illuminate one of the multiple indicator lights 296 and control the drive motor 13 to rotate the turntable 21 90 degrees. When all indicator lights 296 are illuminated, the controller... The controller 297 will trigger the alarm 295 to issue a warning. At this time, all indicator lights 296 will turn off. After each desiccant pack is inserted into the storage slot 22, the alarm 295 can be turned off by the controller 297. After the failed desiccant pack is removed from the discharge chamber 288, the support plate 291 will quickly reset by the third pressure spring 286. After the desiccant packs in the storage slot 22 are discharged, other desiccant packs will be successively aligned with the air outlet 287. At the same time, the number of desiccant packs in the multiple storage slots 22 will be displayed in real time by the indicator lights 296, so that the staff can quickly understand the dehumidification effect inside the cabinet 1.

[0043] like Figure 2 and Figure 3 As shown, the cabinet 1 is provided with a dehumidification component 3 on both the inner and outer sides. The dehumidification component 3 includes a partition 31 that is fixedly connected inside the cabinet 1.

[0044] Multiple hollow slots 311 are provided through the front side of the partition 31. A fixed frame 32 is fixedly connected to the back side of the partition 31. A second baffle 37 is hinged to the back side of the fixed frame 32. An air supply pipe 33 is fixedly connected to the back side of the upper end of the cabinet 1. The outer surface of the air supply pipe 33 has through holes 34 arranged in a ring array. A fan 35 is provided inside the air supply pipe 33. The air supply pipe 33 is connected to the interior of the cabinet 1. Multiple cables 12 pass through the second baffle 37. Fixed rings 36 are fixedly connected to the front and rear sides of the outer surface of the cables 12. The front and rear fixed rings 36 are pressed and contacted with the front and rear sides of the second baffle 37 respectively. A first absorbent cotton 38 is fixedly connected to the upper side of the hollow slot 311. The first absorbent cotton 38 is in the shape of an inverted "U". The first absorbent cotton 38 wraps around the outside of the cable 12.

[0045] By adopting the above technical solution, when the cabinet 1 is running, the fan 35 inside the air supply pipe 33 will draw outside air into the cabinet 1 through the through hole 34, and then through the hollow groove 311 opened above the partition 31 into the area where the electrical component 11 is located. Then, through the hollow groove 311 below, it will be sent into the fixed frame 32 on the other side of the partition 31, pushing the second baffle 37 hinged to the fixed frame 32. During this process, if condensation forms on the outside of the cable 12, the condensation will be guided downwards due to the inclination of the cable 12. The fixing rings 36 are located on both sides of the second baffle 37, so that the second baffle 37 pulls the cable 12 through the fixing rings 36. After being pulled, the cable 12 enters the hollow groove 311 and absorbs the condensate on the outside of the cable 12 through the first absorbent cotton 38 inside the hollow groove 311. As the air pushes the second baffle 37, the second baffle 37 will pull the cable 12, so that the condensate on the outside of the cable 12 is absorbed after passing through the first absorbent cotton 38 inside the hollow groove 311, thereby reducing the impact of condensate on the electrical components 11.

[0046] like Figure 3 and Figure 5 As shown, a collection assembly 39 is provided on both the inner and outer sides of the partition 31. The collection assembly 39 includes a fixing plate 391 fixedly connected to the back side of the partition 31.

[0047] A second absorbent cotton 392 is fixedly connected to the upper side of the fixed plate 391, and a guide strip 393 is fixedly connected to the lower side inside the hollow groove 311. The guide strip 393 is inclined, and the upper side of the guide strip 393 is in contact with the outer side of the cable 12. The second absorbent cotton 392 is located behind and below the guide strip 393.

[0048] By adopting the above technical solution, before the cable 12 is pulled, it will come into contact with the guide strip 393 inclinedly set inside the hollow groove 311. After condensation water condenses on the outside of the cable 12, the guide strip 393 will guide the condensation water on the outside of the cable 12, so that the condensation water gradually slides to the second absorbent cotton 392 above the fixed plate 391 and is finally absorbed by the second absorbent cotton 392. Since the guide strip 393 always guides the condensation water condensed on the surface of the cable 12 when the cable 12 is not pulled, it effectively prevents the condensation water from falling into the area where the electrical components are located. The guided condensation water will be absorbed by the second absorbent cotton 392, further improving the dehumidification efficiency inside the cabinet 1.

[0049] Working principle: When the cabinet 1 is running, the fan 35 inside the air supply pipe 33 draws outside air into the cabinet 1. The air then enters the area where the electrical components 11 are located through the hollow groove 311 above the partition 31, and then flows through the hollow groove 311 below into the fixed frame 32 on the other side of the partition 31. This pushes the second baffle 37 hinged to the fixed frame 32. The second baffle 37 pulls the cable 12 through the fixing ring 36, causing the first absorbent cotton 38 to absorb the condensate on the outside of the cable 12. Because the cable 12 is in contact with the guide strip 393 before being pulled, the condensate gradually slides towards the second absorbent cotton 392 above the fixed plate 391 and is eventually absorbed by it. Simultaneously, moisture enters the storage groove 22 on the surface of the turntable 21 through the air outlet 287 and is absorbed by the desiccant pack. As the desiccant pack continues to absorb moisture... After absorbing moisture, the desiccant pack expands and can squeeze the first baffle 23. After the L-shaped strip 24 disengages from the guide groove 282 inside the moving plate 27, the moving block moves under the push of the second pressure spring 281, so that the ends of the two moving blocks no longer squeeze the desiccant pack. The desiccant pack moves downward under its own weight and enters the discharge chamber 288. Then, the first pressure spring 26 pushes the L-shaped strip 24, so that the L-shaped strip 24 re-enters the guide groove 282. The desiccant pack inside the discharge chamber 288, together with the warning component 29, controls the drive motor 13 to rotate 90 degrees, so that the other storage slots 22 are aligned with the air outlet 287 and the discharge chamber 288 again. At the same time, the controller 297 controls one of the indicator lights 296 to light up. When all the indicator lights 296 are lit, the controller 297 will control the warning device 295 to issue a warning.

[0050] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A high-voltage switchgear, comprising a cabinet (1) and electrical components (11) disposed inside the cabinet (1), wherein a plurality of cables (12) are disposed on the lower side of the electrical components (11), and a drive motor (13) is disposed on the back side of the cabinet (1), characterized in that: The cabinet (1) has a material changing component (2) inside its inner wall. The material changing component (2) includes a turntable (21) rotatably connected to the inner wall of the back side of the cabinet (1). The outer surface of the turntable (21) is provided with a storage slot (22) arranged in a ring array. The front end of the inner side of the storage slot (22) is slidably connected to a first baffle (23). The left and right sides of the first baffle (23) are fixedly connected to L-shaped strips (24). The left and right sides of the inner side of the storage slot (22) are provided with a moving slot (25). The L-shaped strip (24) is slidably connected inside the moving slot (25). The front side of the horizontal plate of the L-shaped strip (24) and the front side of the inner side of the moving slot (25) are arranged in parallel and fixedly connected to a first pressure spring (26). The left and right sides of the back end of the inner side of the storage slot (22) are slidably connected to a moving plate (27). The inner and outer sides of the turntable (21) are provided with a self-locking member (28).

2. A high-voltage switchgear according to claim 1, characterized in that: The self-locking component (28) includes a second pressure spring (281) fixedly connected between the extension of the left and right movable plates (27) and the outer surface of the turntable (21). The movable plate (27) has a guide groove (282) through the front side inside. The guide groove (282) has a limit groove (283) on both the upper and lower sides near the vertical part of the L-shaped bar (24). The vertical part of the L-shaped bar (24) has an embedding groove (284) on both the upper and lower sides. A locking block (285) is slidably connected inside the embedding groove (284). The side of the locking block (285) on the upper and lower sides that is far away from each other slides and presses against the side of the limit groove (283) on the upper and lower sides respectively. A third pressure spring (286) is fixedly connected between the embedding groove (284) and the side of the locking block (285) near the vertical part of the L-shaped bar (24).

3. A high-voltage switchgear according to claim 2, characterized in that: The vertical portion of the L-shaped strip (24) extends into the interior of the guide groove (282), and the L-shaped strip (24) is slidably connected to the interior of the guide groove (282). An air vent (287) is provided on the back side inside the cabinet (1), and the air vent (287) is connected to the storage groove (22). A discharge cavity (288) is provided on the back side of the cabinet (1), and the discharge cavity (288) is bent.

4. A high-voltage switchgear according to claim 3, characterized in that: The cabinet (1) is provided with a warning component (29) on both the inner and outer sides. The warning component (29) includes a support plate (291) that is slidably connected to the lower side of the discharge cavity (288).

5. A high-voltage switchgear according to claim 4, characterized in that: A fourth pressure spring (292) is fixedly connected between the lower side of the support plate (291) and the lower inside of the discharge chamber (288). A striker (293) is fixedly connected to the lower side of the support plate (291). A pressure sensor (294) is provided on the lower inside of the discharge chamber (288). After the striker (293) moves downward, it presses against the upper side of the pressure sensor (294). The fourth pressure spring (292) is sleeved on the outside of the pressure sensor (294).

6. A high-voltage switchgear according to claim 5, characterized in that: An alarm (295) is fixedly connected to the back side of the cabinet (1), and multiple indicator lights (296) are fixedly connected to the back side of the cabinet (1). A controller (297) is provided on the upper side of the back end inside the cabinet (1).

7. A high-voltage switchgear according to claim 1, characterized in that: The cabinet (1) is provided with a dehumidification component (3) on both the inner and outer sides. The dehumidification component (3) includes a partition (31) fixedly connected inside the cabinet (1).

8. A high-voltage switchgear according to claim 7, characterized in that: The front side of the partition (31) has multiple hollow slots (311) through it. The back side of the partition (31) is fixedly connected to a fixing frame (32). The back side of the fixing frame (32) is hinged to a second baffle (37). The back side of the upper end of the cabinet (1) is fixedly connected to an air supply pipe (33). The outer surface of the air supply pipe (33) has through holes (34) arranged in a ring array. The air supply pipe (33) is equipped with a fan (35). The air supply pipe (33) and the cabinet (1) are connected. The internal connections are interconnected, and multiple cables (12) pass through the second baffle (37). The outer surfaces of the cables (12) are fixedly connected to the front and rear sides with fixing rings (36). The fixing rings (36) on the front and rear sides are pressed and contacted with the front and rear sides of the second baffle (37) respectively. The upper side of the hollow groove (311) is fixedly connected to the first absorbent cotton (38). The first absorbent cotton (38) is in the shape of an inverted "U". The first absorbent cotton (38) wraps around the outside of the cable (12).

9. A high-voltage switchgear according to claim 8, characterized in that: The inner and outer sides of the partition (31) are provided with a collection component (39), and the collection component (39) includes a fixing plate (391) fixedly connected to the back side of the partition (31).

10. A high-voltage switchgear according to claim 9, characterized in that: A second absorbent cotton (392) is fixedly connected to the upper side of the fixing plate (391), and a guide strip (393) is fixedly connected to the lower side inside the hollow groove (311). The guide strip (393) is inclined, and the upper side of the guide strip (393) is pressed and contacted with the outer side of the cable (12). The second absorbent cotton (392) is located behind and below the guide strip (393).

Images