Detection system for partial discharge of transformer

Abstract

The invention, which relates to the technical field of discharge detection, discloses a detection system for partial discharge of a transformer, comprising a bottom plate and a detection assembly. The detection positioning instrument body is installed on the upper side of the bottom plate, two wiring holes are formed in the front side of the detection positioning instrument body, wiring heads are installed in the wiring holes, the moving assembly is installed on the edge of the bottom plate, and the clamping assembly is installed on the upper side of the detection positioning instrument body. A fixing assembly is installed on the right side of the detection positioning instrument body, an angle adjusting assembly is installed on the rear side of the detection positioning instrument body, and the angle adjusting assembly is fixed to the upper side of the bottom plate; the detection assembly comprises fixing blocks, a rotating shaft, a winding barrel, a wiring cable, a connecting plug and a detection head, the two corresponding fixing blocks are fixed to the right side of the detection positioning instrument body, rotating holes are formed in the middles of the fixing blocks, carrying is convenient, and a circuit connector can be prevented from falling off during detection.

Description

Technical Field

[0001] The invention relates to the technical field of discharge detection, and in particular to a detection system for partial discharge of a transformer. Background Art

[0002] During the use of the transformer, discharge detection refers to the process of monitoring whether partial discharge occurs inside the transformer. This process is crucial to ensure that the insulation system of the transformer is intact. Partial discharge is an early signal of insulation defects. Its detection helps to detect potential insulation problems early and avoid the degradation of insulation performance caused by long-term discharge. Through regular discharge detection, defects that may exist during the manufacturing and installation process, such as uneven conductor surface and excessive curvature, as well as changes in insulation structure caused by transient overvoltage and vibration during operation can be discovered in a timely manner. This helps to take timely maintenance measures to prevent further deterioration of insulation performance and ensure the safe operation of the transformer; DS-G1500 precise diagnosis and locator is used to detect the internal insulation defects of transformers under power. The system is based on the acoustic-electrical joint detection method. It uses a high-speed digital storage oscilloscope to record and analyze the partial discharge signal of the equipment. The system can compare and analyze the information of different frequency bands of ultra-high frequency, ultrasonic and high-frequency current signals, so as to effectively distinguish the real partial discharge signal from the external interference signal. The system mainly uses ultra-high frequency detection and supports various built-in and external ultra-high frequency sensors of substation equipment. It can perform partial discharge test and diagnosis analysis on the equipment under test in the running state, and accurately locate and determine the defect type according to the propagation delay and strength of the signal, and evaluate the degree of harm of the defect, so as to understand and grasp the operation status of the equipment and avoid the occurrence of major insulation accidents. However, the existing live detection and locating instruments are connected to the lines through plug-in connectors during use. When in use, if people are not careful about their feet while walking, they will be involved in the lines, which may easily cause the connectors to fall off and cause detection interruption. At the same time, some live detection and locating instruments are too large and inconvenient to carry. For this reason, we propose a detection system for partial discharge of transformers. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a detection system for partial discharge of transformers, which is easy to carry and can avoid line connectors from falling off during detection, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a detection system for partial discharge of a transformer, comprising a base plate and a detection component; Bottom plate: a detection and locating instrument body is installed on the upper side, two wiring holes are arranged on the front side of the detection and locating instrument body, wiring heads are installed inside the wiring holes, a moving component is installed on the edge of the bottom plate, a clamping component is installed on the upper side of the detection and locating instrument body, a fixing component is installed on the right side of the detection and locating instrument body, an angle adjustment component is installed on the rear side of the detection and locating instrument body, and the angle adjustment component is fixed on the upper side of the bottom plate; Detection component: comprises a fixed block, a rotating shaft, a winding barrel, a wiring cable, a plug connector and a detection head, two corresponding fixed blocks are fixed on the right side of the detection locator body, a rotating hole is opened in the middle of the fixed block, and the two rotating holes are rotatably connected inside with a rotating shaft, a winding barrel is fixed on the circumferential surface of the rotating shaft, a wiring cable is wound on the circumferential surface of the winding barrel, a plug connector is fixed to one end of the wiring cable, and a detection head is fixed to the other end of the wiring cable, the detection head cooperates with the detection locator body, the plug connector cooperates with the wiring head, the fixed component corresponds to the two winding barrels, a connecting component is installed on the upper end of the rotating shaft, the connecting component cooperates with the clamping component, and is connected to the detection locator body by setting the detection component.

[0005] The locking device is configured to lock the locking cam of the locking cam and the locking cam, and the locking cam is configured to lock the locking cam of the locking cam and the locking cam, wherein the locking cam is secured to the locking cam by a secure coupling between the locking cam and the locking cam.

[0006] Furthermore, the clamping assembly includes a connecting block, a first spring, a slider, a pull groove and a clamping plate. A slide groove is provided on the upper side of the detection locator body, a connecting block is fixed to the left end of the slide groove, two corresponding first springs are fixed to the right side of the connecting block, a slider is fixed to the right end of the two first springs, the slider is slidably connected to the inside of the slide groove, a pull groove is provided on the upper side of the slider, a clamping plate is fixed to the right side of the slider, and the connecting disk is fixed by setting the clamping assembly.

[0007] Furthermore, the connecting component includes a connecting disk and a connecting groove. The connecting disk is fixed at the upper end of the rotating shaft. The circumferential surface of the connecting disk is provided with evenly distributed connecting grooves. The card plate is clamped inside the connecting groove on the left side, and the clamping component is connected to the rotating shaft by setting the connecting component.

[0008] Furthermore, the angle adjustment component includes a bracket, a strip opening, a support frame, an internal threaded tube and a fastening head. The bracket is fixed to the rear end of the upper side of the base plate. The left and right sides of the bracket are provided with evenly distributed anti-slip grooves. The left and right sides of the support frame are provided with two corresponding strip openings. The inside of the strip opening is provided with an internal threaded tube. The internal threads of the internal threaded tube are connected with a fastening head. The two fastening heads are respectively fitted with the left and right sides of the bracket. The support frame is fixed to the rear side of the detection and locator body. The two internal threaded tubes are respectively fixed to the upper ends of the left and right sides of the support frame. The inclination angle of the detection and locator body is adjusted by setting the angle adjustment component.

[0009] Furthermore, the mobile component includes a mounting barrel, a damping disc, a second spring, a connecting rod, a universal wheel and a brake plate. Four corresponding support holes are opened on the edge of the bottom plate. The mounting barrel is fixed inside the support hole. The damping disc is slidably connected inside the mounting barrel. The upper end of the damping disc is fixed with a second spring, and the second spring is fixed inside the mounting barrel. The lower end of the damping disc is fixed with a connecting rod, and the lower end of the connecting rod is equipped with a universal wheel. The side of the universal wheel is equipped with a brake plate. The mobile component is provided to facilitate users to carry the detection and locator body.

[0010] Furthermore, a connecting frame is fixed on the right side of the two fixed blocks, a guide hole is opened on the right side of the connecting frame, a guide tube is fixed inside the guide hole, and two wiring cables are respectively located inside the two guide tubes. The movement range of the wiring cables is limited by setting the guide tubes.

[0011] Furthermore, an anti-skid sheet is fixed inside the fixing frame, and evenly distributed anti-skid strips are fixed on the side of the anti-skid sheet. The provision of the anti-skid sheet improves the firmness of the fixing frame in fixing the wiring cables.

[0012] Furthermore, a rubber support strip is fixed to the front end of the lower side of the detection and locator body, and the rubber support strip is in contact with the upper side of the bottom plate. The stability of the detection and locator body can be ensured by providing the rubber support strip.

[0013] Furthermore, a second threaded hole is opened on the upper side of the base plate, the internal thread of the second threaded hole is connected with a threaded column, the upper end of the threaded column is fixed with a support plate, and the lower end of the threaded column is fixed with a turntable, and the detection locator body is supported by setting the support plate.

[0014] Compared with the prior art, the invention has the following advantages: 1. By setting up the detection component, the wiring cable can be pulled to move according to the needs during use, and its length can be adjusted. After the adjustment, the plug connector is connected to the corresponding wiring head. After the connection, the two detection heads are placed inside the transformer, and then the partial discharge of the transformer can be detected by the detection locator. During the detection process, the threaded rod is rotated to move the moving bar. The movement of the moving bar drives the two fixing frames to move backward so that the two anti-slip sheets contact the two wiring cables, and the two wiring cables can be fixed. After fixation, the plug connector can be prevented from falling off during use; 2. By setting up a moving component, the detection locator body can be pushed to move when in use. At this time, the four universal wheels are convenient for users to adjust the direction of movement, so that users can carry it conveniently. At the same time, during the movement, the universal wheels will drive the damping plate connected to it to move up and down along the corresponding installation barrel along the ups and downs of the road. In this case, the vibration can be effectively reduced, thereby avoiding damage to the detection locator body due to vibration caused by transportation; 3. By setting up the card connection assembly, the card plate will be connected to the connecting groove on the left side under the action of the two first springs when in use. In this case, the connecting disk can be fixed. After the connecting disk is fixed, the rotating shaft is fixed, thereby preventing the two winding barrels from rotating. In this case, the stability of the two wiring cables can be further guaranteed, thereby further preventing the wiring head from being separated from the plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 A is an enlarged view of the present invention; Figure 3 A schematic diagram of the structure of the bracket of the present invention; Figure 4 This is an enlarged view of point B of the present invention; Figure 5 This is a schematic diagram of the structure of the connection assembly of the present invention; Figure 6 This is a schematic diagram of the structure of the angle adjustment component of the present invention; Figure 7 A schematic diagram of the structure of the mobile assembly of the present invention; Figure 8 It is a schematic diagram of the structure of the turntable of the present invention;.

[0016] In the figure: 1 bottom plate, 2 detection component, 21 fixed block, 22 rotating shaft, 23 winding barrel, 24 wiring cable, 25 plug connector, 26 detection head, 3 fixed component, 31 fixed strip, 33 fixed block, 33 moving strip, 34 threaded rod, 35 rotating column, 36 limiting rod, 37 fixed frame, 4 clamping component, 41 connecting block, 42 ​​first spring, 43 sliding block, 44 drawing groove, 45 clamping plate, 5 connecting component, 51 connecting disk, 52 connecting groove, 6 angle adjustment component, 61 bracket, 62 strip mouth, 63 supporting frame, 64 internal threaded pipe, 65 fastening head, 7 moving component, 71 mounting barrel, 72 damping disk, 73 second spring, 74 connecting rod, 75 universal wheel, 76 brake plate, 8 connecting frame, 9 guide tube, 10 detection locator body, 11 anti-slip sheet, 12 rubber support strip, 13 wiring head, 14 threaded column, 15 rotating disk, 16 supporting disk. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-8 ,This embodiment provides a technical solution: a detection system for partial discharge of a transformer, comprising a base plate 1 and a detection component 2; Bottom plate 1: A detection and locating instrument body 10 is installed on the upper side, two wiring holes are set on the front side of the detection and locating instrument body 10, and a wiring head 13 is installed inside the wiring hole. A moving component 7 is installed on the edge of the bottom plate 1, and a clamping component 4 is installed on the upper side of the detection and locating instrument body 10. A fixing component 3 is installed on the right side of the detection and locating instrument body 10. An angle adjustment component 6 is installed on the rear side of the detection and locating instrument body 10. The angle adjustment component 6 is fixed on the upper side of the bottom plate 1. The fixing component 3 includes a fixing bar 31, a fixing block 33, a moving bar 33, a threaded rod 34, a rotating column 35, a limiting rod 36 and a fixing frame 37. A fixing bar 31 and two fixing blocks 33 are fixed on the right side of the detection and locating instrument body 10, and a fixing bar 31 is set between the two fixing blocks 33 and the fixing bar 31. There is a moving bar 33, the upper side edge of the moving bar 33 is provided with a first threaded hole, the internal thread of the first threaded hole is connected to a threaded rod 34, the middle part of the upper fixed block 33 is provided with a mounting hole, the front end of the threaded rod 34 is rotatably connected to the inside of the mounting hole, the rear end of the threaded rod 34 is rotatably connected to the front side of the fixed bar 31, the front side edge of the moving bar 33 is provided with a limiting hole, the internal sliding connection of the limiting hole is connected to a limiting rod 36, the limiting rod 36 is fixed between the lower fixed block 33 and the fixed bar 31, the rear end of the threaded rod 34 is fixed with a rotating column 35, the front side of the moving bar 33 is fixed with two corresponding fixing frames 37, the two fixing frames 37 correspond to the two winding barrels 23 respectively, the clamping assembly 4 includes a connecting block 41, a first spring 42, and a slider 43, a pull groove 44 and a card plate 45. A slide groove is arranged on the upper side of the detection and positioning instrument body 10. A connecting block 41 is fixed to the left end inside the slide groove. Two corresponding first springs 42 are fixed to the right side of the connecting block 41. A slider 43 is fixed to the right end of the two first springs 42. The slider 43 is slidably connected to the inside of the slide groove. A pull groove 44 is provided on the upper side of the slider 43. A card plate 45 is fixed to the right side of the slider 43. The angle adjustment component 6 includes a bracket 61, a strip-shaped opening 62, a support frame 63, an internally threaded tube 64 and a fastening head 65. A bracket 61 is fixed to the rear end of the upper side of the bottom plate 1. Evenly distributed anti-slip grooves are provided on the left and right sides of the bracket 61. Two corresponding strip-shaped openings 62 are provided on the left and right sides of the support frame 61. The strip-shaped opening 62 is provided inside The internal threaded tube 64 is connected with a fastening head 65 through its internal threads. The two fastening heads 65 fit the left and right sides of the bracket 61 respectively. A support frame 63 is fixed to the rear side of the detection and positioning instrument body 10. The two internal threaded tubes 64 are fixed to the upper ends of the left and right sides of the support frame 63 respectively. The moving component 7 includes a mounting barrel 71, a damping disc 72, a second spring 73, a connecting rod 74, a universal wheel 75 and a brake plate 76. Four corresponding supporting holes are provided on the edge of the bottom plate 1. The mounting barrel 71 is fixed inside the supporting hole. The damping disc 72 is slidably connected inside the mounting barrel 71. The upper end of the damping disc 72 is fixed with a second spring 73. The second spring 73 is fixed inside the mounting barrel 71. The lower end of the damping disc 72 is fixed with a connecting rod 74.A universal wheel 75 is installed at the lower end of the connecting rod 74, and a brake plate 76 is installed on the side of the universal wheel 75. The mobile component 7 is provided to facilitate the user to carry the detection and positioning instrument body 10, and the angle adjustment component 6 is provided to adjust the inclination angle of the detection and positioning instrument body 10. The connecting plate 51 is fixed by providing a clamping component 4, and the two wiring cables 24 are fixed by providing a fixing component 3; Detection component 2: includes a fixed block 21, a rotating shaft 22, a winding barrel 23, a wiring cable 24, a plug connector 25 and a detection head 26. Two corresponding fixed blocks 21 are fixed on the right side of the detection locator body 10. A rotating hole is opened in the middle of the fixed block 21. The two rotating holes are rotatably connected with the rotating shaft 22 inside. The winding barrel 23 is fixed on the circumferential surface of the rotating shaft 22. The wiring cable 24 is wound on the circumferential surface of the winding barrel 23. The plug connector 25 is fixed to one end of the wiring cable 24. The detection head 26 is fixed to the other end of the wiring cable 24. The detection head 26 is connected to the detection locator body 1 0 cooperates with each other, the plug connector 25 cooperates with the terminal head 13, the fixing component 3 corresponds to the two winding barrels 23, the upper end of the rotating shaft 22 is equipped with a connecting component 5, the connecting component 5 cooperates with the clamping component 4, the connecting component 5 includes a connecting disk 51 and a connecting groove 52, the upper end of the rotating shaft 22 is fixed with a connecting disk 51, the circumferential surface of the connecting disk 51 is provided with evenly distributed connecting grooves 52, the clamping plate 45 is clamped in the inside of the connecting groove 52 on the left side, the clamping component 4 is connected to the rotating shaft 22 by setting the connecting component 5, and is connected to the detection locator body 10 by setting the detection component 2.

[0019] Among them: a connecting frame 8 is fixed to the right side of the two fixing blocks 21, a guide hole is opened on the right side of the connecting frame 8, a guide tube 9 is fixed inside the guide hole, and two wiring cables 24 are respectively located inside the two guide tubes 9. The movement range of the wiring cables 24 is limited by setting the guide tubes 9.

[0020] The fixing frame 37 has an anti-skid sheet 11 fixed inside, and the side of the anti-skid sheet 11 has evenly distributed anti-skid strips fixed thereon. The anti-skid sheet 11 is provided to improve the firmness of the fixing frame 37 to the wiring cable 24.

[0021] Among them: a rubber support strip 12 is fixed to the front end of the lower side of the detection and positioning instrument body 10, and the rubber support strip 12 is in contact with the upper side of the bottom plate 1. By setting the rubber support strip 12, the stability of the detection and positioning instrument body 10 can be ensured.

[0022] Among them: a second threaded hole is opened on the upper side of the base plate 1, the internal thread of the second threaded hole is connected with a threaded column 14, the upper end of the threaded column 14 is fixed with a support plate 16, and the lower end of the threaded column 14 is fixed with a turntable 15. The support plate 16 is provided to support the detection and positioning instrument body 10.

[0023] The working principle of a detection system for partial discharge of transformers provided by the present invention is as follows: first, the detection locator body 10 can be pushed to move. At this time, the four universal wheels 75 are convenient for users to adjust the direction of movement, so as to facilitate users to carry it. At the same time, during the movement, the universal wheels 75 will drive the damping plate 72 connected thereto to move back and forth along the corresponding installation barrel 71 along the ups and downs of the road. In this case, the vibration can be effectively reduced, thereby avoiding the damage of the detection locator body 10 due to the vibration generated by transportation. When the detection locator body 10 is moved to a suitable position, the slider 43 is pulled by the pull groove 44 to move the card plate 45 and the connecting groove 52 on the left side. After separation, the wiring cable 24 is pulled to move according to needs, and its length is adjusted. After adjustment, the plug connector 25 is connected to the corresponding wiring head 13, and then the threaded rod 34 is rotated to move the moving bar 33. The moving bar 33 moves and drives the two fixing frames 37 to move backward so that the two anti-slip sheets 11 contact the two wiring cables 24, and the two The wiring cable 24 is fixed, and after being fixed, the plug connector 25 can be prevented from falling off during use. Then the slider 43 is released. At this time, the slider 43 will move to the right under the action of the two first springs 42, so that the card plate 45 is connected to the connection groove 52 on the left side to the right. In this case, the connection disk 51 can be fixed. After the connection disk 51 is fixed, the rotating shaft 22 is fixed, thereby preventing the two winding barrels 23 from rotating. In this case, the stability of the two wiring cables 24 can be further guaranteed, thereby further preventing the connection head 13 from being separated from the plug connector 25. Then the two detection heads 26 are placed inside the transformer, and then the partial discharge of the transformer can be detected by the detection locator 10. During the detection, the two fastening heads 65 can be rotated to separate from the two internal threaded tubes 64. After separation, the angle of the detection locator body 10 is adjusted and the two fastening heads 65 are tightened again. After tightening, the turntable 15 is rotated so that the support disk 16 supports the detection locator body 10 upward. After support, the user can conveniently observe the detected data on the detection locator body 10.

[0024] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detection system for partial discharge of a transformer, characterized in that: It comprises a base plate (1) and a detection component (2); A bottom plate (1): a detection and locating instrument body (10) is installed on the upper side, two wiring holes are arranged on the front side of the detection and locating instrument body (10), wiring heads (13) are installed inside the wiring holes, a moving component (7) is installed on the edge of the bottom plate (1), a clamping component (4) is installed on the upper side of the detection and locating instrument body (10), a fixing component (3) is installed on the right side of the detection and locating instrument body (10), and an angle adjustment component (6) is installed on the rear side of the detection and locating instrument body (10), and the angle adjustment component (6) is fixed on the upper side of the bottom plate (1); The detection component (2) comprises a fixed block (21), a rotating shaft (22), a winding barrel (23), a wiring cable (24), a plug connector (25) and a detection head (26). Two corresponding fixed blocks (21) are fixed on the right side of the detection locator body (10). A rotating hole is opened in the middle of the fixed block (21). The rotating shaft (22) is rotatably connected inside the two rotating holes. A winding barrel (23) is fixed on the circumferential surface of the rotating shaft (22). A connecting wire (24) is wound around the circumferential surface of the winding barrel (23). A wiring cable (24), one end of the wiring cable (24) is fixed with a plug connector (25), the other end of the wiring cable (24) is fixed with a detection head (26), the detection head (26) cooperates with the detection locator body (10), the plug connector (25) cooperates with the wiring head (13), the fixing component (3) and the two winding barrels (23) correspond to each other, and the upper end of the rotating shaft (22) is installed with a connecting component (5), and the connecting component (5) cooperates with the clamping component (4).

2. A transformer partial discharge detection system according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing bar (31), a fixing block (33), a moving bar (33), a threaded rod (34), a rotating column (35), a limiting rod (36) and a fixing frame (37); a fixing bar (31) and two fixing blocks (33) are fixed on the right side of the detection and positioning instrument body (10); a moving bar (33) is arranged between the two fixing blocks (33) and the fixing bar (31); a first threaded hole is provided on the upper side edge of the moving bar (33); a threaded rod (34) is connected to the inner thread of the first threaded hole; a mounting hole is provided in the middle of the upper fixing block (33); The front end of the threaded rod (34) is rotatably connected to the inside of the mounting hole, and the rear end of the threaded rod (34) is rotatably connected to the front side of the fixed bar (31). A limiting hole is provided on the front side edge of the movable bar (33). A limiting rod (36) is slidably connected to the inside of the limiting hole. The limiting rod (36) is fixed between the lower fixed block (33) and the fixed bar (31). A rotating column (35) is fixed to the rear end of the threaded rod (34). Two corresponding fixing frames (37) are fixed to the front side of the movable bar (33). The two fixing frames (37) correspond to the two winding barrels (23) respectively.

3. A transformer partial discharge detection system according to claim 1, characterized in that: The clamping assembly (4) comprises a connecting block (41), a first spring (42), a slider (43), a groove (44) and a clamping plate (45). A groove is provided on the upper side of the detection locator body (10). A connecting block (41) is fixed to the left end of the inside of the groove. Two corresponding first springs (42) are fixed to the right side of the connecting block (41). A slider (43) is fixed to the right end of the two first springs (42). The slider (43) is slidably connected to the inside of the groove. A groove (44) is provided on the upper side of the slider (43). A clamping plate (45) is fixed to the right side of the slider (43).

4. A transformer partial discharge detection system according to claim 3, characterized in that: The connection assembly (5) comprises a connection disk (51) and a connection groove (52); the connection disk (51) is fixed to the upper end of the rotating shaft (22); the connection grooves (52) are evenly distributed on the circumferential surface of the connection disk (51); and the clamping plate (45) is clamped inside the left connection groove (52).

5. A transformer partial discharge detection system according to claim 1, characterized in that: The angle adjustment assembly (6) comprises a bracket (61), a strip opening (62), a support frame (63), an internally threaded tube (64) and a fastening head (65); the bracket (61) is fixed to the rear end of the upper side of the base plate (1); the left and right sides of the bracket (61) are provided with evenly distributed anti-slip grooves; the left and right sides of the support frame (61) are provided with two corresponding strip openings (62); the inside of the strip opening (62) is provided with an internally threaded tube (64); the internal threads of the internally threaded tube (64) are connected with a fastening head (65); the two fastening heads (65) are respectively fitted with the left and right sides of the bracket (61); the rear side of the detection and positioning instrument body (10) is fixed with the support frame (63); the two internally threaded tubes (64) are respectively fixed to the upper ends of the left and right sides of the support frame (63).

6. A transformer partial discharge detection system according to claim 1, characterized in that: The moving assembly (7) comprises a mounting barrel (71), a damping disc (72), a second spring (73), a connecting rod (74), a universal wheel (75) and a brake plate (76). Four corresponding support holes are opened on the edge of the bottom plate (1). The mounting barrel (71) is fixed inside the support hole. The damping disc (72) is slidably connected inside the mounting barrel (71). The upper end of the damping disc (72) is fixed with a second spring (73), and the second spring (73) is fixed inside the mounting barrel (71). The lower end of the damping disc (72) is fixed with a connecting rod (74), and the lower end of the connecting rod (74) is installed with a universal wheel (75). The side of the universal wheel (75) is installed with a brake plate (76).

7. A transformer partial discharge detection system according to claim 1, characterized in that: A connecting frame (8) is fixed to the right side of the two fixing blocks (21), a guide hole is opened on the right side of the connecting frame (8), a guide tube (9) is fixed inside the guide hole, and two connection cables (24) are respectively located inside the two guide tubes (9).

8. A transformer partial discharge detection system according to claim 2, characterized in that: An anti-slip sheet (11) is fixed inside the fixing frame (37), and evenly distributed anti-slip strips are fixed on the side of the anti-slip sheet (11).

9. A transformer partial discharge detection system according to claim 1, characterized in that: A rubber support strip (12) is fixed to the front end of the lower side of the detection and positioning instrument body (10), and the rubber support strip (12) is in contact with the upper side of the bottom plate (1).

10. A transformer partial discharge detection system according to claim 1, characterized in that: A second threaded hole is provided on the upper side of the bottom plate (1), a threaded column (14) is connected to the inner thread of the second threaded hole, a support plate (16) is fixed to the upper end of the threaded column (14), and a rotating plate (15) is fixed to the lower end of the threaded column (14).

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