35kV power transmission and transformation substation fault early warning device

Abstract

The invention relates to the technical field of transformer substation fault early warning, in particular to a 35kV power transmission and transformation transformer substation fault early warning device which comprises a transformer substation box body, a conical frame is fixedly connected to the bottom end of the transformer substation box body, a supporting base is fixedly connected to the bottom end of the conical frame, and a bayonet socket is fixedly connected to the bottom end of the transformer substation box body. A movable shaft is arranged on the front face of the transformer substation box body, and the front face of the transformer substation box body is movably connected with a movable door through the movable shaft. According to the 35kV power transmission and transformation substation, through the arrangement of the substation box body, the movable shaft, the movable door, the flat cable inclined groove and the flat cable inclined grid, the equipment can be used for conducting matched flat cable installation and use of efficient fault early warning equipment in the 35kV power transmission and transformation substation, in the actual use process, a worker firstly enables the movable door on the front face of the substation box body to move along the movable shaft, and the movable door is arranged on the front face of the substation box body; the movable opening operation is carried out in cooperation with the handle groove, and then the transformer substation equipment is installed in the transformer substation box body.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer substation fault early warning, in particular to a 35kV power transmission and transformation transformer substation fault early warning device. Background Art

[0002] A substation is a place in a power system where voltage and current are transformed, electric energy is received and distributed. The substation in a power plant is a step-up substation, which boosts the electric energy generated by the generator and feeds it into the high-voltage power grid. The electrical equipment in the substation is divided into primary equipment and secondary equipment. The following is a brief introduction to the main equipment in the substation. Primary equipment refers to equipment that directly produces, transmits, distributes and uses electric energy, mainly including transformers, high-voltage circuit breakers, disconnectors, busbars, lightning arresters, capacitors, reactors, etc. Secondary equipment in a substation refers to the equipment that directly produces, transmits, distributes and uses electric energy, mainly including transformers, high-voltage circuit breakers, disconnectors, busbars, lightning arresters, capacitors, reactors, etc. Equipment for measuring, monitoring, controlling and protecting operating conditions, mainly consists of relay protection devices, automatic devices, measurement and control devices, metering devices, automation systems and DC equipment that provides power for secondary equipment. Substation inspection means that the on-duty personnel observe the appearance of the equipment for any abnormalities through regular inspections, such as whether there is any change in color, whether there is any foreign matter, whether the needle indication is normal, whether the sound of the equipment is normal, whether there is any abnormal smell, whether the temperature of the equipment that is allowed to be touched is normal, and measure the changes in the operating parameters of the electrical equipment during operation, etc., to determine whether the operating condition of the equipment is normal.

[0003] For example, the patent document with the announcement number CN 221408023 U discloses a fault early warning monitoring device for a substation, comprising a box body, a partition fixedly connected to the inner wall of the box body, a first safety door rotatably connected to the outer wall of the box body by a hinge, a first handle fixedly connected to the outer wall of the first safety door, a temperature detection controller and a humidity detection controller fixedly connected to the top wall of the partition body, a temperature detector and a humidity detector fixedly connected to the outer wall of the first safety door, the temperature detector is connected to the temperature detection controller via a wire, and the humidity detector is connected to the humidity detection controller via a wire. The device also includes: a lifting component fixedly connected to the top wall of the box body; an alarm component connected to the box body; and a control component fixedly connected to the inner wall of the box body. In this utility model, the monitoring efficiency and safety of the device during use are improved, the purpose of effectively improving the fault monitoring effect is achieved, the trouble of the device being difficult to detect problems with electrical appliances during use is avoided, and the practicality and applicability of the device are optimized.

[0004] However, in the actual process of implementation, due to the limitation of its own structure, this structure can only use simple equipment to directly connect to the 35kV transmission and transformation substation to realize fault warning operation. However, the fault warning equipment and wires cannot be quickly and orderly arranged and installed inside the 35kV transmission and transformation substation, affecting the installation space inside the 35kV transmission and transformation substation. At the same time, the equipment cannot quickly cut off the power of all equipment inside the 35kV transmission and transformation substation after a fault warning occurs, which cannot meet daily use needs. Therefore, it is urgent to design a 35kV transmission and transformation substation fault warning device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a 35kV power transmission and transformation substation fault warning device to solve the problem that the existing structure proposed in the above background technology can only be directly connected to the 35kV power transmission and transformation substation by using simple equipment during actual implementation due to its own structural limitations. However, the fault warning equipment and wires cannot be quickly and orderly arranged and installed inside the 35kV power transmission and transformation substation, affecting the installation space inside the 35kV power transmission and transformation substation. At the same time, the equipment cannot quickly cut off the power of all equipment inside the 35kV power transmission and transformation substation after a fault warning occurs, and cannot meet daily usage needs.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a 35kV power transmission and transformation substation fault warning device, comprising a substation box, a conical frame fixedly connected to the bottom end of the substation box, a support base fixedly connected to the bottom end of the conical frame, a socket fixedly connected to the bottom end of the substation box, a movable shaft provided on the front of the substation box, a movable door movably connected to the front of the substation box via the movable shaft, a cable slant groove provided at the four corners of the side of the substation box, and a cable slant grid provided on the inner wall of the cable slant groove;

[0007] The top frame and the bottom frame are: the top end of the substation box is sleeved with the top frame, the bottom end of the substation box is sleeved with the bottom frame, the bottom end of the top frame is fixedly connected to the top wire frame, the surface of the bottom frame is fixedly connected to the bottom wire frame, the back of the top frame is fixedly connected to the push rod head, the bottom end of the push rod head is provided with a lifting push rod, and the bottom end edge of the push rod head is fixedly connected to the positioning rubber pad.

[0008] Preferably, the inner walls of the top frame and the bottom frame are provided with wire ring grilles, the inner walls of the top wire frame and the bottom wire frame are provided with wire grooves, and the inner walls of the wire grooves are provided with wire docking grilles.

[0009] Preferably, the bottom end of the bottom wire arrangement frame is fixedly connected to a fixed arc cover, the top of the fixed arc cover is movably connected to a movable arc cover, and a wire feed seat is provided inside the fixed arc cover and the movable arc cover, and the surface of the wire feed seat is evenly provided with wire feed hole grooves.

[0010] Preferably, the inner walls of the top and bottom wire frames are provided with adhesive strips, and the surface between the top frame and the bottom frame is provided with an adhesive ring.

[0011] Preferably, an equipment rack is fixedly connected to the top of the top frame, an early warning instrument is provided on one side of the surface of the equipment rack, an alarm is provided on the other side of the surface of the equipment rack, and a speaker is provided on the top of the alarm.

[0012] Preferably, a plug-in slot is provided at one end of the socket, a first sealing ring is provided on the inner side wall of the plug-in slot, and a first contact interface is provided on the inner bottom wall of the plug-in slot.

[0013] Preferably, a lifting airbag is provided inside the conical frame, and one end of the lifting airbag is fixedly connected to a lifting seat.

[0014] Preferably, a second sealing ring is provided on the surface of the lifting seat, and a second contact interface is provided on the surface of the second sealing ring.

[0015] Preferably, a handle groove is provided on the front of the movable door, and a sealing side strip is provided on the side of the movable door.

[0016] Preferably, the substation box body, the top frame and the bottom frame are adapted to each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The 35kV power transmission and transformation substation fault warning device, through the substation box, movable shaft, movable door, cable inclined trough, cable inclined grid, top frame, bottom frame, top cable frame, bottom cable frame, push rod head, lifting push rod, positioning rubber pad, cable ring grid, cable trough, cable docking grid, fitting rubber strip, fitting rubber ring, equipment rack, warning instrument, alarm and speaker, can enable the equipment to carry out the adaptive cable installation and use of the efficient fault warning equipment inside the 35kV power transmission and transformation substation. In the actual use process, the staff first put the substation box The movable door on the front of the body is opened along the movable axis in conjunction with the handle groove, and then the substation equipment is installed inside the substation box. When the movable door is closed, the sealing side strips on the side perform sealing protection operations. In addition, the substation box can be installed as a whole between the top frame and the bottom frame through the cage structure composed of the top wire frame and the bottom wire frame. Then, the push rod head on the back of the top frame can be controlled to start the lifting push rod at the bottom end to perform lifting and adjusting operations, thereby realizing the overall adjustment of the top frame, the bottom frame, the top wire frame and the bottom wire frame. The up and down lifting adjustment operation is performed to carry out the adaptation, separation and docking adjustment operation between the top wire frame and the bottom wire frame. The positioning rubber pad at the bottom of the push rod head is positioned and docked with the top of the lifting push rod. At the same time, the power transmission and transformation substation fault warning equipment can be installed in the designated position inside the substation box on a daily basis, and the wires at the warning instrument inside the equipment rack can be arranged in a ring through the wire ring grid on the inner wall of the top frame, and can be arranged at the wire docking grid of the wire groove on the inner wall of the top wire frame and the bottom wire frame at the four corners. Finally, it can be installed on the side of the substation box The wiring operation is performed at the wiring oblique grid of the four-corner wiring chute, and the wires are connected to the early warning equipment, thereby ensuring that the wires are directly connected to the fault early warning device, and will not cause the problem of excessive space occupation inside the substation box. Then, it is only necessary to drop the top frame and the top wiring frame and fix them on the substation box. At this time, the fitting strips on the inner walls of the top wiring frame and the bottom wiring frame can be tightly attached to the fitting rubber rings on the inner walls of the top frame and the bottom frame, so as to perform a more suitable 35kV transmission and transformation substation fault early warning operation, which reflects the practicality of the equipment design.

[0019] The 35kV power transmission and transformation substation fault warning device further improves the overall use effect of the equipment through the substation box, conical frame, support base, socket, fixed arc cover, movable arc cover, line feeder seat, line feeder hole slot, socket slot, first sealing ring, first contact interface, lifting airbag, lifting seat, second sealing ring, second contact interface, handle slot and sealing side strip. In daily use, the staff can lift the substation box as a whole and install it on the conical frame and the support base through the top frame and the bottom frame. At this time, the socket at the bottom end of the substation box can be adapted to be installed inside the conical frame, and the output wires of all equipment inside the substation box can be connected to the first contact interface inside the socket. The conical frame can be started daily. The lifting airbag at the top drives the second sealing ring and the second contact interface at the top to be connected to the inside of the socket slot of the socket, and the second contact interface directly performs contact connection operation with the first contact interface to complete the derivation operation of the transmission current, and the second sealing ring is adapted to be tightly attached to the first sealing ring. When a fault warning occurs, the lifting airbag descends to quickly complete the disconnection operation at the first contact interface and the second contact interface, completing the overall disconnection protection operation of the equipment for the fault warning. At the same time, all input wires used in the substation box can be arranged from the wire inlet hole slot of the wire inlet seat on a daily basis, and the wire inlet seat can be limited and tightened between the top wire arrangement frame and the bottom wire arrangement frame through a fixed arc cover and a movable arc cover, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 This is an overall schematic diagram of the substation box structure of the present invention;

[0022] Figure 3 It is an overall schematic diagram of the top frame and bottom frame structure of the present invention;

[0023] Figure 4 Schematic diagram of the overall lifting push rod structure of the present invention;

[0024] Figure 5 It is an overall schematic diagram of the socket structure of the present invention;

[0025] Figure 6 It is an overall schematic diagram of the tapered frame structure of the present invention;

[0026] Figure 7 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0027] Figure 8 For the present invention Figure 3 A magnified schematic diagram of the structure at point B.

[0028] Figure: 1. Substation box; 2. Conical frame; 3. Support base; 4. Socket; 5. Movable shaft; 6. Movable door; 7. Cable chute; 8. Cable grating; 9. Top frame; 10. Bottom frame; 11. Top cable frame; 12. Bottom cable frame; 13. Push rod head; 14. Lifting push rod; 15. Positioning pad; 16. Cable ring grille; 17. Cable trough; 18. Cable docking grille; 19. Fixed arc cover ; 20. Movable arc cover; 21. Wire inlet seat; 22. Wire inlet hole groove; 23. Fitting rubber strip; 24. Fitting rubber ring; 25. Equipment rack; 26. Early warning instrument; 27. Alarm; 28. Speaker; 29. Plug slot; 30. First sealing ring; 31. First contact interface; 32. Lifting airbag; 33. Lifting seat; 34. Second sealing ring; 35. Second contact interface; 36. Handle groove; 37. Sealing side strip. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-8 , an embodiment provided by the present invention:

[0031] A 35kV power transmission and transformation substation fault warning device, including a substation box 1, the bottom end of the substation box 1 is fixedly connected to a conical frame 2, the bottom end of the conical frame 2 is fixedly connected to a support base 3, the bottom end of the substation box 1 is fixedly connected to a socket 4, a movable shaft 5 is provided on the front of the substation box 1, and a movable door 6 is movably connected to the front of the substation box 1 through the movable shaft 5. The four corners of the side of the substation box 1 are provided with a wire arrangement inclined groove 7, and the inner wall of the wire arrangement inclined groove 7 is provided with a wire arrangement inclined grid 8. One end of the socket 4 is provided with a plug-in groove 29, the inner side wall of the plug-in groove 29 is provided with a first sealing ring 30, and the inner bottom wall of the plug-in groove 29 is provided with a first contact interface 31. A lifting airbag 32 is provided inside the conical frame 2, and one end of the lifting airbag 32 is fixedly connected to a lifting seat 33, and the surface of the lifting seat 33 is provided with a second sealing ring. The sealing ring 34 and the second sealing ring 34 are provided with a second contact interface 35 on their surfaces, a handle groove 36 is provided on the front of the movable door 6, and a sealing side strip 37 is provided on the side of the movable door 6. The substation box 1 and the top frame 9 and the bottom frame 10 are adapted to each other, and the lifting airbag 32 inside the conical frame 2 is started to drive the second sealing ring 34 and the second contact interface 35 at the top to be connected to the inside of the plug slot 29 of the socket 4, and the second contact interface 35 is directly connected to the first contact interface 31 for contact operation to complete the derivation operation of the transmission current, and the second sealing ring 34 is adapted to be tightly attached to the first sealing ring 30. When a fault warning occurs, the lifting airbag 32 descends to quickly complete the disconnection operation at the first contact interface 31 and the second contact interface 35, completing the overall disconnection protection operation of the equipment for the fault warning.

[0032] The top frame 9 and the bottom frame 10 are provided with a top frame 9 on the top of the transformer substation box 1, and a bottom frame 10 on the bottom of the transformer substation box 1. The bottom end of the top frame 9 is fixedly connected to the top wiring frame 11, and the surface of the bottom frame 10 is fixedly connected to the bottom wiring frame 12. The back of the top frame 9 is fixedly connected to the push rod head 13, and the bottom end of the push rod head 13 is provided with a lifting push rod 14. The bottom edge of the push rod head 13 is fixedly connected to the positioning rubber pad 15. The inner wall of the top frame 9 and the bottom frame 10 is provided with a top wiring frame 11. There is a wire ring grille 16, a wire groove 17 is opened on the inner wall of the top wire frame 11 and the bottom wire frame 12, and a wire docking grid 18 is set on the inner wall of the wire groove 17. The bottom end of the bottom wire frame 12 is fixedly connected to a fixed arc cover 19, and the top of the fixed arc cover 19 is movably connected to a movable arc cover 20. The interior of the fixed arc cover 19 and the movable arc cover 20 is provided with a wire feed seat 21, and the surface of the wire feed seat 21 is evenly provided with a wire feed hole groove 22. The top wire frame 11 and the bottom wire frame The inner wall of the frame 12 is provided with a fitting rubber strip 23, and the surface between the top frame 9 and the bottom frame 10 is provided with a fitting rubber ring 24. The top of the top frame 9 is fixedly connected to an equipment rack 25, and an early warning instrument 26 is provided on one side of the surface of the equipment rack 25, and an alarm 27 is provided on the other side of the surface of the equipment rack 25. A loudspeaker 28 is provided on the top of the alarm 27. The substation box 1 is installed as a whole between the top frame 9 and the bottom frame 10 inside the cage structure composed of the top wire frame 11 and the bottom wire frame 12. Then, the push rod head 13 on the back of the top frame 9 can be controlled to start, so that the lifting push rod 14 at its bottom end can be lifted and lowered, thereby realizing the overall up and down lifting and adjusting operation of the top frame 9 and the bottom frame 10, as well as the top wire frame 11 and the bottom wire frame 12, and performing the adaptation, separation and docking adjustment operation between the top wire frame 11 and the bottom wire frame 12. The positioning rubber pad 15 at the bottom end of the push rod head 13 performs a positioning and docking operation with the top end of the lifting push rod 14.

[0033] Working principle: When in use, the user first opens the movable door 6 on the front of the substation box 1 along the movable axis 5 in conjunction with the handle groove 36, and then installs the substation equipment inside the substation box 1. After that, when the movable door 6 is closed, the sealing side strips 37 on the side perform a sealing protection operation. In addition, the substation box 1 can be installed as a whole between the top frame 9 and the bottom frame 10 inside the cage structure composed of the top wire frame 11 and the bottom wire frame 12. Then, the push rod head 13 on the back of the top frame 9 can be controlled to start the lifting push rod 14 at the bottom end to perform the lifting and lowering adjustment operation, thereby realizing the overall up and down lifting and lowering adjustment of the top frame 9 and the bottom frame 10 as well as the top wire frame 11 and the bottom wire frame 12. The adjustment operation is performed to adapt, separate and dock the top wire-laying frame 11 and the bottom wire-laying frame 12, and the positioning rubber pad 15 at the bottom end of the push rod head 13 is positioned and docked with the top end of the lifting push rod 14. At the same time, the power transmission and transformation substation fault warning equipment can be installed at the designated position inside the substation box 1 on a daily basis, and the wires at the warning instrument 26 inside the equipment rack 25 are arranged in a ring-shaped manner through the wire-laying ring grille 16 on the inner wall of the top frame 9, and can be arranged at the wire-laying docking grille 18 of the wire-laying groove 17 on the inner wall of the top wire-laying frame 11 and the bottom wire-laying frame 12 at the four corners. Finally, the wire-laying operation can be performed at the wire-laying oblique grille 8 of the wire-laying oblique groove 7 at the four corners on the side of the substation box 1 to connect the wires to the warning equipment. The connection operation is performed to ensure that the wire is directly connected to the fault warning, and the problem of excessive space occupation inside the substation box 1 is not caused. Then, it is only necessary to drop the top frame 9 and the top wire frame 11 and fix them on the substation box 1. At this time, the fitting strips 23 on the inner wall of the top wire frame 11 and the bottom wire frame 12 can be tightly fitted with the fitting rubber rings 24 on the inner wall of the top frame 9 and the bottom frame 10 to perform a more suitable 35kV power transmission and transformation substation fault warning operation. In daily use, the staff can lift the substation box 1 as a whole through the top frame 9 and the bottom frame 10 and install it on the conical frame 2 and the support base 3. At this time, the socket 4 at the bottom end of the substation box 1 can be adapted for plugging and installation. It is installed inside the conical frame 2, and the output wires of all the equipment inside the transformer substation box 1 are connected to the first contact interface 31 inside the socket 4. The lifting airbag 32 inside the conical frame 2 can be started daily to drive the second sealing ring 34 and the second contact interface 35 at the top to be connected to the socket slot 29 inside the socket 4. The second contact interface 35 is directly connected with the first contact interface 31 to complete the derivation operation of the transmission current, and the second sealing ring 34 is adapted to be tightly attached to the first sealing ring 30. When a fault warning occurs, the lifting airbag 32 descends to quickly complete the disconnection operation at the first contact interface 31 and the second contact interface 35, completing the overall disconnection protection operation of the equipment with the fault warning.At the same time, all input wires used in the substation box 1 can be arranged through the wire inlet slot 22 of the wire inlet seat 21 on a daily basis, and the wire inlet seat 21 can be limited and fastened between the top wire arrangement frame 11 and the bottom wire arrangement frame 12 through the fixed arc cover 19 and the movable arc cover 20. The above is the entire working principle of the present invention.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A 35kV power transmission and transformation substation fault warning device, comprising a substation box (1), characterized in that: The bottom end of the substation box (1) is fixedly connected to a conical frame (2), the bottom end of the conical frame (2) is fixedly connected to a support base (3), the bottom end of the substation box (1) is fixedly connected to a socket (4), a movable shaft (5) is provided on the front of the substation box (1), a movable door (6) is movably connected to the front of the substation box (1) through the movable shaft (5), and a wire arrangement inclined groove (7) is provided at the four corners of the side of the substation box (1), and a wire arrangement inclined grid (8) is provided on the inner wall of the wire arrangement inclined groove (7); A top frame (9) and a bottom frame (10), wherein the top end of the transformer substation box (1) is sleeved with the top frame (9), and the bottom end of the transformer substation box (1) is sleeved with the bottom frame (10), the bottom end of the top frame (9) is fixedly connected to a top wiring frame (11), the surface of the bottom frame (10) is fixedly connected to a bottom wiring frame (12), the back of the top frame (9) is fixedly connected to a push rod head (13), the bottom end of the push rod head (13) is provided with a lifting push rod (14), and the bottom edge of the push rod head (13) is fixedly connected to a positioning rubber pad (15).

2. A 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The inner walls of the top frame (9) and the bottom frame (10) are provided with a wire arrangement ring grid (16), the inner walls of the top wire arrangement frame (11) and the bottom wire arrangement frame (12) are provided with a wire arrangement groove (17), and the inner wall of the wire arrangement groove (17) is provided with a wire arrangement docking grid (18).

3. A 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The bottom end of the bottom wire-discharging frame (12) is fixedly connected to a fixed arc cover (19), the top end of the fixed arc cover (19) is movably connected to a movable arc cover (20), and a wire feed seat (21) is provided inside the fixed arc cover (19) and the movable arc cover (20), and a surface of the wire feed seat (21) is evenly provided with wire feed slots (22).

4. A 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The inner walls of the top line frame (11) and the bottom line frame (12) are provided with bonding adhesive strips (23), and the surface between the top frame (9) and the bottom frame (10) is provided with a bonding rubber ring (24).

5. The 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The top end of the top frame (9) is fixedly connected to an equipment rack (25), one side of the surface of the equipment rack (25) is provided with an early warning instrument (26), the other side of the surface of the equipment rack (25) is provided with an alarm (27), and the top end of the alarm (27) is provided with a speaker (28).

6. A 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: One end of the socket (4) is provided with a plug-in slot (29), the inner side wall of the plug-in slot (29) is provided with a first sealing ring (30), and the inner bottom wall of the plug-in slot (29) is provided with a first contact interface (31).

7. A 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: A lifting airbag (32) is provided inside the conical frame (2), and one end of the lifting airbag (32) is fixedly connected to a lifting seat (33).

8. A 35kV power transmission and transformation substation fault early warning device according to claim 7, characterized in that: A second sealing ring (34) is provided on the surface of the lifting seat (33), and a second contact interface (35) is provided on the surface of the second sealing ring (34).

9. The 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The front of the movable door (6) is provided with a handle groove (36), and the side of the movable door (6) is provided with a sealing side strip (37).

10. The 35kV power transmission and transformation substation fault early warning device according to claim 1, characterized in that: The transformer substation box (1), the top frame (9) and the bottom frame (10) are adapted to each other.

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