Partial discharge withstand voltage test tool of high-voltage circuit breaker

Abstract

The invention relates to the technical field of high-voltage circuit breaker detection, and discloses a high-voltage circuit breaker partial discharge withstand voltage test tool, which comprises a test platform and a high-voltage circuit breaker body, and is characterized in that the upper surface of the test platform is provided with a fixing mechanism for fixing the high-voltage circuit breaker body; the upper surface of the fixing mechanism is provided with a ground wire connecting mechanism connected with a ground wire, the upper surface of the test platform is provided with a moving mechanism, the upper end of the moving mechanism is provided with a wiring mechanism for replacing a circuit during test, and a first connector lug is connected with a second connecting wire by pushing a wiring board and a pushing block. When the detection is carried out, the second connector lug moves into the turnover wiring board, the second connector lug is connected with the turnover wiring board, so that the turnover wiring board is connected with the first connecting line through the connecting sub-line and the turnover wiring board, and the wiring mechanism is moved through the arranged moving mechanism during the detection. Therefore, the effect of detecting circuit breakers at different positions above the high-voltage circuit breaker body is achieved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage circuit breaker testing technology, and specifically provides a fixture for partial discharge withstand voltage testing of high-voltage circuit breakers. Background Technology

[0002] The core function of the partial discharge withstand voltage test fixture for high-voltage circuit breakers is to provide a stable high-voltage environment for the circuit breaker and accurately detect partial discharge signals to ensure test safety and data reliability. The core of the test fixture is to test the withstand voltage capability of the insulation structure of key parts of the high-voltage circuit breaker, thereby identifying insulation defects and ensuring the safe operation of the equipment. The specific test objects revolve around the core parts of the circuit breaker, such as the main circuit, the break point, and the auxiliary circuit.

[0003] Currently, when conducting withstand voltage tests on high-voltage circuit breakers, the high-voltage leads are connected to the circuit breaker test terminals via insulating clamps, and the partial discharge sensor is fixed to a key part of the casing (such as near the arc-extinguishing chamber). The grounding shield and the operator's insulating equipment (insulating gloves and insulating mats) are in place. When testing a single circuit breaker, the operator needs to move and replace the test lead, making the testing process quite cumbersome. Therefore, we have proposed a fixture for the partial discharge withstand voltage test of high-voltage circuit breakers. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a partial discharge withstand voltage test fixture for high-voltage circuit breakers, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a partial discharge withstand voltage test fixture for a high-voltage circuit breaker, comprising a test platform and a high-voltage circuit breaker body, wherein the upper surface of the test platform is provided with a fixing mechanism for fixing the high-voltage circuit breaker body, the upper surface of the fixing mechanism is provided with a ground wire connection mechanism for connecting the ground wire, the upper surface of the test platform is provided with a moving mechanism, and the upper end of the moving mechanism is provided with a wiring mechanism for changing the line during the test.

[0006] Preferably, the fixing mechanism includes a first support frame fixedly connected to the upper surface of the test platform, a support connecting frame fixedly connected to the lower surface of the first support frame, a sliding rod slidably connected inside the support connecting frame, a pressure plate fixedly connected to the upper end of the sliding rod, a first spring sleeved on the outer surface of the sliding rod, a first fixing rod fixedly connected inside the first support frame, a first moving plate slidably connected to the outer surface of the first fixing rod, a bottom connecting block fixedly connected to the bottom end of the sliding rod, a connecting rod rotatably connected inside the bottom connecting block, a first telescopic rod fixedly connected to the side surface of the first moving plate, a first clamping plate fixedly connected to one end of the first telescopic rod, and a second spring sleeved on the outer surface of the first telescopic rod.

[0007] Preferably, the first support frame is internally rotatably connected to a first rotating rod, a first threaded telescopic rod, and a second threaded telescopic rod. The upper end of the first support frame is fixedly connected to the second telescopic rod. One end of the first threaded telescopic rod is fixedly connected to a second clamping plate. One end of the second threaded telescopic rod is fixedly connected to a third clamping plate. The outer surface of the first rotating rod is driven by a first transmission belt and a second transmission belt.

[0008] Preferably, the first movable plate and the bottom connecting block are rotatably connected by a connecting rod, the first spring is disposed between the pressure plate and the support connecting frame, the first movable plate and the first clamping plate are connected by a first telescopic rod, and the second spring is disposed between the first movable plate and the first clamping plate. The first threaded telescopic rod and the first rotating rod are connected by a first transmission belt, and the second threaded telescopic rod and the first rotating rod are connected by a second transmission belt.

[0009] Preferably, the moving mechanism includes a second moving plate slidably connected to the upper surface of the test platform, a moving motor fixedly connected to the upper surface of the second moving plate, a rotating threaded rod fixedly connected to the output shaft of the moving motor, a limit fixing rod fixedly connected inside the second moving plate, a moving stage slidably connected to the outer surface of the limit fixing rod, and the moving stage threadedly connected to the outer surface of the rotating threaded rod.

[0010] Preferably, the wiring mechanism includes a second support frame fixedly connected to the upper surface of the movable platform. A second rotating rod is threadedly connected inside the second support frame. A telescopic limiting rod is fixedly connected inside the second support frame. A fixed frame is fixedly connected to the bottom end of the second rotating rod. A flip-over wiring plate is rotatably connected inside the fixed frame. A telescopic rod is fixedly connected inside the fixed frame. A third spring is sleeved on the outer surface of the telescopic rod. A pushing inclined plate is fixedly connected to one end of the telescopic rod. A connecting sub-wire is fixedly connected to the upper end of the flip-over wiring plate. A first connecting wire is fixedly connected to the upper end of the fixed frame.

[0011] Preferably, a third telescopic rod is fixedly connected inside the second support frame, a fourth spring is sleeved on the outer surface of the third telescopic rod, a push block is fixedly connected to the bottom end of the third telescopic rod, a push terminal block is fixedly connected to the bottom end of the push block, a second connecting line is fixedly connected to the upper surface of the push block, and a line support rod and a line support ring are fixedly connected to the side surface of the second support frame.

[0012] Preferably, the pushing ramp is slidably connected to the side surface of the flip-over connector, the connecting sub-line is connected to the first connecting line, the pushing block is slidably connected inside the second support frame, and both the first connecting line and the second connecting line pass through the inside of the line support ring and are placed above the line support rod.

[0013] Preferably, an insulating block is fixedly connected to the lower surface of the test platform, a supporting base plate is fixedly connected to the lower surface of the insulating block, a first terminal is fixedly connected to the side surface of the high-voltage circuit breaker body, and a second terminal is fixedly connected to the top of the high-voltage circuit breaker body.

[0014] Preferably, the grounding connection mechanism includes a movable conductive rod slidably connected inside the third clamping plate, a fifth spring sleeved on the outer surface of the movable conductive rod, a conductive plate fixedly connected to the upper surface of the first support frame, a second conductive rod fixedly connected to the upper surface of the conductive plate, a fixing block fixedly connected to the side surface of the support base plate, a sliding conductive block slidably connected inside the fixing block, the sliding conductive block and the conductive plate being in contact with each other, and the fifth spring and the second conductive rod being connected by an electric wire.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a fixing mechanism to limit and fix the high-voltage circuit breaker body placed above the first support frame. When the high-voltage circuit breaker body is placed above the pressure plate, the pressure plate is pressed down under the action of gravity. While the pressure plate pushes the sliding rod downward, the connecting rod pulls the first moving plate towards the center. When the first moving plate moves towards the center, the first clamping plate achieves the function of limiting the high-voltage circuit breaker body. Then, by rotating the first rotating rod, the first threaded telescopic rod and the second threaded telescopic rod are driven to rotate, thereby pushing the second clamping plate and the third clamping plate towards the center to clamp the high-voltage circuit breaker body, thus achieving the function of fixing and limiting the high-voltage circuit breaker body.

[0016] 2. This invention uses a wiring mechanism to connect the first and second terminals on the upper part of the high-voltage circuit breaker body to the detection device. When the wiring mechanism moves to the upper part of the high-voltage circuit breaker body via the moving mechanism, the pushing terminal block continues to move in front of the first terminal. Due to the arc surface, the bottom front end of the pushing terminal block moves upward above the first terminal, thereby connecting the first terminal to the second connecting line via the pushing terminal block and the pushing block. Simultaneously, the second terminal moves into the interior of the flip terminal block, connecting the second terminal to the flip terminal block. The flip terminal block then connects to the first connecting line via the connecting sub-line and the flip terminal block. During detection, the wiring mechanism is moved via the moving mechanism to detect different circuit breakers on the upper part of the high-voltage circuit breaker body. Attached Figure Description

[0017] Figure 1 This is a front view of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention. Figure 2This is a side sectional view of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention; Figure 3 This is a cross-sectional view of the fixing mechanism of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention; Figure 4 This is a cross-sectional view of the moving mechanism of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention. Figure 5 This is a schematic diagram of the wiring mechanism of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 This is a schematic diagram of the grounding connection mechanism of a partial discharge withstand voltage test fixture for a high-voltage circuit breaker proposed in this invention; Figure 8 For the present invention Figure 7 Enlarged view of point B.

[0018] Legend: 1. Test platform; 2. Fixing mechanism; 201. First support frame; 202. Support connecting frame; 203. Sliding rod; 204. Pressure plate; 205. First spring; 206. First fixed rod; 207. First moving plate; 208. Bottom connecting block; 209. Connecting rod; 210. First telescopic rod; 211. Second spring; 212. First clamping plate; 213. First rotating rod; 214. First threaded telescopic rod; 215. Second clamping plate; 216. Second telescopic rod; 217. First transmission belt; 218. Second threaded telescopic rod; 219. Third clamping plate; 220. Second transmission belt; 3. Moving mechanism; 301. Second moving plate; 302. Moving motor; 303. Rotating threaded rod; 304. Limiting and fixing rod; 305. Moving table; 4. Wiring Mechanism; 401, Second support frame; 402, Second rotating rod; 403, Telescopic limit rod; 404, Fixed frame; 405, Flip terminal block; 406, Telescopic rod; 407, Third spring; 408, Pushing inclined plate; 409, Connecting sub-line; 410, First connecting line; 411, Third telescopic rod; 412, Fourth spring; 413, Pushing block; 414, Pushing terminal block; 415, Second connecting line; 416, Line support rod; 417, Line support ring; 5, Ground wire connection mechanism; 501, Moving conductive rod; 502, Fifth spring; 503, Conductive plate; 504, Second conductive rod; 505, Fixed clamp; 506, Sliding conductive block; 6, Insulating block; 7, Support base plate; 8, High-voltage circuit breaker body; 9, First terminal; 10, Second terminal. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0021] like Figures 1-8 The apparatus shown is a partial discharge withstand voltage test fixture for a high voltage circuit breaker, including a test platform 1 and a high voltage circuit breaker body 8. The upper surface of the test platform 1 is provided with a fixing mechanism 2 for fixing the high voltage circuit breaker body 8. The upper surface of the fixing mechanism 2 is provided with a ground wire connection mechanism 5 for connecting the ground wire. The upper surface of the test platform 1 is provided with a moving mechanism 3. The upper end of the moving mechanism 3 is provided with a wiring mechanism 4 for changing the line during the test.

[0022] The fixing mechanism 2 includes a first support frame 201 fixedly connected to the upper surface of the test platform 1. A support connecting frame 202 is fixedly connected to the lower surface of the first support frame 201. A sliding rod 203 is slidably connected inside the support connecting frame 202. A pressure plate 204 is fixedly connected to the upper end of the sliding rod 203. A first spring 205 is sleeved on the outer surface of the sliding rod 203. A first fixing rod 206 is fixedly connected inside the first support frame 201. A first moving plate 207 is slidably connected to the outer surface of the first fixing rod 206. A bottom connecting block 208 is fixedly connected to the bottom end of the sliding rod 203. A connecting rod 209 is rotatably connected inside the bottom connecting block 208. A first telescopic rod 210 is fixedly connected to the side surface of the first moving plate 207. A first clamping plate 212 is fixedly connected to one end of the first telescopic rod 210. A second spring 211 is sleeved on the outer surface of the first telescopic rod 210. A first rotating rod 213 and a first... The system includes a threaded telescopic rod 214, a second threaded telescopic rod 218, and a second telescopic rod 216 fixedly connected to the upper end of the first support frame 201. A second clamping plate 215 is fixedly connected to one end of the first threaded telescopic rod 214, and a third clamping plate 219 is fixedly connected to one end of the second threaded telescopic rod 218. A first transmission belt 217 and a second transmission belt 220 are connected to the outer surface of the first rotating rod 213. A first moving plate 207 and a bottom connecting block 208 are rotatably connected via a connecting rod 209. A first spring 205 is disposed between a pressure plate 204 and a support connecting frame 202. The first moving plate 207 and the first clamping plate 212 are connected via the first telescopic rod 210, and a second spring 211 is disposed between the first moving plate 207 and the first clamping plate 212. The first threaded telescopic rod 214 and the first rotating rod 213 are connected via the first transmission belt 217, and the second threaded telescopic rod 218 and the first rotating rod 213 are connected via the second transmission belt 220.

[0023] Furthermore, the high-voltage circuit breaker body 8, placed above the first support frame 201, is limited and fixed by the fixed mechanism 2. When the high-voltage circuit breaker body 8 is placed above the pressure plate 204, the pressure plate 204 is pressed down by gravity. While the pressure plate 204 pushes the sliding rod 203 downward, the connecting rod 209 pulls the first moving plate 207 towards the center. When the first moving plate 207 moves towards the center, the first clamping plate 212 achieves the function of limiting the high-voltage circuit breaker body 8. Then, by rotating the first rotating rod 213, the first threaded telescopic rod 214 and the second threaded telescopic rod 218 are driven to rotate, thereby pushing the second clamping plate 215 and the third clamping plate 219 towards the center to clamp the high-voltage circuit breaker body 8, thus achieving the function of fixing and limiting the high-voltage circuit breaker body 8.

[0024] The moving mechanism 3 includes a second moving plate 301 slidably connected to the upper surface of the test platform 1. A moving motor 302 is fixedly connected to the upper surface of the second moving plate 301. A rotating threaded rod 303 is fixedly connected to the output shaft of the moving motor 302. A limit fixing rod 304 is fixedly connected inside the second moving plate 301. A moving table 305 is slidably connected to the outer surface of the limit fixing rod 304. The moving table 305 is threadedly connected to the outer surface of the rotating threaded rod 303. The wiring mechanism 4 includes a second support frame 401 fixedly connected to the upper surface of the moving table 305. A second rotating rod 402 is threadedly connected inside the second support frame 401. A telescopic limit rod 403 is fixedly connected inside the second support frame 401. A fixed frame 404 is fixedly connected to the bottom end of the second rotating rod 402. A flip wiring plate 405 is rotatably connected inside the fixed frame 404. A telescopic rod 406 is fixedly connected inside the fixed frame 404. A third spring 407 is sleeved on the outer surface of the telescopic rod 406. One end of rod 406 is fixedly connected to a pushing ramp 408; the upper end of flip-over wiring plate 405 is fixedly connected to a connecting sub-wire 409; the upper end of fixing frame 404 is fixedly connected to a first connecting wire 410; a third telescopic rod 411 is fixedly connected inside the second support frame 401; a fourth spring 412 is sleeved on the outer surface of the third telescopic rod 411; a pushing block 413 is fixedly connected to the bottom end of the third telescopic rod 411; and a pushing wiring plate 414 is fixedly connected to the bottom end of the pushing block 413. The upper surface of the moving block 413 is fixedly connected to the second connecting line 415, the side surface of the second support frame 401 is fixedly connected to the line support rod 416 and the line support ring 417, the pushing inclined plate 408 is slidably connected to the side surface of the flip-connecting plate 405, the connecting sub-line 409 is connected to the first connecting line 410, the pushing block 413 is slidably connected inside the second support frame 401, and the first connecting line 410 and the second connecting line 415 both pass through the inside of the line support ring 417 and are placed above the line support rod 416.

[0025] An insulating block 6 is fixedly connected to the lower surface of the test platform 1, and a supporting base plate 7 is fixedly connected to the lower surface of the insulating block 6. A first terminal 9 is fixedly connected to the side surface of the high-voltage circuit breaker body 8, and a second terminal 10 is fixedly connected to the top of the high-voltage circuit breaker body 8. The ground wire connection mechanism 5 includes a movable conductive rod 501 that is slidably connected inside the third clamping plate 219. A fifth spring 502 is sleeved on the outer surface of the movable conductive rod 501. A conductive plate 503 is fixedly connected to the upper surface of the first support frame 201, and a second conductive rod 504 is fixedly connected to the upper surface of the conductive plate 503. A fixing block 505 is fixedly connected to the side surface of the supporting base plate 7. A sliding conductive block 506 is slidably connected inside the fixing block 505. The sliding conductive block 506 and the conductive plate 503 are in contact with each other. The fifth spring 502 and the second conductive rod 504 are connected by wires.

[0026] Furthermore, the wiring mechanism 4 connects the first terminal 9 and the second terminal 10 above the high-voltage circuit breaker body 8 to the detection device. When the wiring mechanism 4 moves above the high-voltage circuit breaker body 8 via the moving mechanism 3, the pusher plate 414 continues to move in front of the first terminal 9. Due to the arc surface, the bottom front end of the pusher plate 414 moves upward above the first terminal 9, thus achieving the function of connecting the first terminal 9 to the second connecting line 415 through the pusher plate 414 and the pusher block 413. At the same time, the second terminal 10 moves into the interior of the flip-over terminal plate 405, achieving the connection between the second terminal 10 and the flip-over terminal plate 405. Thus, the flip-over terminal plate 405 is connected to the first connecting line 410 through the connecting sub-line 409 and the flip-over terminal plate 405. During detection, the wiring mechanism 4 is moved by the moving mechanism 3, thereby achieving the function of detecting different circuit breakers above the high-voltage circuit breaker body 8.

[0027] Working principle: First, the high-voltage circuit breaker body 8 is placed above the first support frame 201. After the high-voltage circuit breaker body 8 is placed above the pressure plate 204, the pressure plate 204 is pressed downward under the action of gravity. While the pressure plate 204 pushes the sliding rod 203 downward, the connecting rod 209 pulls the first moving plate 207 towards the center. When the first moving plate 207 moves towards the center, the first clamping plate 212 achieves the function of limiting the high-voltage circuit breaker body 8. Then, by rotating the first rotating rod 213, the first threaded telescopic rod 214 and the second threaded telescopic rod 218 are driven to rotate, thereby pushing the second clamping plate 215 and the third clamping plate 219 towards the center to clamp the high-voltage circuit breaker body 8. After the fixing is completed, the wiring mechanism 4 moves through the moving mechanism 3. When the circuit breaker body 8 is above the high-voltage circuit breaker, as the push terminal block 414 continues to move in front of the first terminal 9, the bottom front end of the push terminal block 414 will move upward above the first terminal 9 due to the arc surface, thereby achieving the function of connecting the first terminal 9 to the second connecting line 415 through the push terminal block 414 and the push block 413. At the same time, the second terminal 10 will move into the interior of the flip terminal block 405, achieving the connection between the second terminal 10 and the flip terminal block 405. Thus, the flip terminal block 405 is connected to the first connecting line 410 through the connecting sub-line 409 and the flip terminal block 405. During the test, the moving mechanism 3 is used to move the wiring mechanism 4, thereby achieving the function of testing different circuit breakers above the high-voltage circuit breaker body 8.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A partial discharge withstand test tool for high voltage circuit breakers, comprising a test platform (1) and a high voltage circuit breaker body (8), characterized in that: The test platform (1) is put into the upper surface provided with the fixed mechanism (2) for fixing the high-voltage circuit breaker body (8), the upper surface of the fixed mechanism (2) is provided with the ground connection mechanism (5) connected with the ground wire, the upper surface of the test platform (1) is provided with the moving mechanism (3), and the upper end of the moving mechanism (3) is provided with the wiring mechanism (4) for replacing the line during the test.

2. The partial discharge withstand test device for high voltage circuit breaker according to claim 1, characterized in that: The fixed mechanism (2) comprises a first support frame (201) fixedly connected to the upper surface of the test platform (1), a support connecting frame (202) fixedly connected to the lower surface of the first support frame (201), a sliding rod (203) slidably connected to the inside of the support connecting frame (202), a pressing plate (204) fixedly connected to the upper end of the sliding rod (203), a first spring (205) sleeved on the outer surface of the sliding rod (203), a first fixed rod (206) fixedly connected to the inside of the first support frame (201), a first moving plate (207) slidably connected to the outer surface of the first fixed rod (206), a bottom end connecting block (208) fixedly connected to the bottom end of the sliding rod (203), a connecting rod (209) rotatably connected to the inside of the bottom end connecting block (208), a first telescopic rod (210) fixedly connected to the side surface of the first moving plate (207), and a first clamping plate (212) fixedly connected to one end of the first telescopic rod (210).

3. The partial discharge withstand test device for high voltage circuit breaker according to claim 2, characterized in that: The first support frame (201) is rotatably connected with a first rotating rod (213), a first threaded telescopic rod (214) and a second threaded telescopic rod (218), the upper end of the first support frame (201) is fixedly connected with a second telescopic rod (216), one end of the first threaded telescopic rod (214) is fixedly connected with a second clamping plate (215), one end of the second threaded telescopic rod (218) is fixedly connected with a third clamping plate (219), and the outer surface of the first rotating rod (213) is transmissionally connected with a first transmission belt (217) and a second transmission belt (220).

4. The partial discharge withstand test device for high voltage circuit breakers according to claim 3, characterized in that: The first moving plate (207) and the bottom end connecting block (208) are rotatably connected through the connecting rod (209), the first spring (205) is arranged between the pressing plate (204) and the support connecting frame (202), the first moving plate (207) and the first clamping plate (212) are connected through the first telescopic rod (210), the second spring (211) is arranged between the first moving plate (207) and the first clamping plate (212), the first threaded telescopic rod (214) and the first rotating rod (213) are transmissionally connected through the first transmission belt (217), and the second threaded telescopic rod (218) and the first rotating rod (213) are transmissionally connected through the second transmission belt (220).

5. The partial discharge withstand test device for high voltage circuit breakers according to claim 1, characterized in that: The moving mechanism (3) includes a second moving plate (301) slidably connected to the upper surface of the test platform (1), the upper surface of the second moving plate (301) is fixedly connected with a moving motor (302), the output shaft of the moving motor (302) is fixedly connected with a rotating threaded rod (303), the inside of the second moving plate (301) is fixedly connected with a limiting fixed rod (304), the outer surface of the limiting fixed rod (304) is slidably connected with a moving table (305), and the moving table (305) is threadedly connected to the outer surface of the rotating threaded rod (303).

6. The partial discharge withstand test device for high voltage circuit breakers according to claim 5, characterized in that: The wiring mechanism (4) includes a second support frame (401) fixedly connected to the upper surface of the moving table (305), the inside of the second support frame (401) is threadedly connected with a second rotating rod (402), the inside of the second support frame (401) is fixedly connected with a telescopic limiting rod (403), the bottom end of the second rotating rod (402) is fixedly connected with a fixed frame (404), the inside of the fixed frame (404) is rotatably connected with a turnover wiring plate (405), the inside of the fixed frame (404) is fixedly connected with a telescopic rod (406), the outer surface of the telescopic rod (406) is sleeved with a third spring (407), one end of the telescopic rod (406) is fixedly connected with a pushing inclined plate (408), the upper end of the turnover wiring plate (405) is fixedly connected with a connecting sub-wire (409), and the upper end of the fixed frame (404) is fixedly connected with a first connecting wire (410).

7. The partial discharge withstand test device for high voltage circuit breakers according to claim 6, characterized in that: The inside of the second support frame (401) is fixedly connected with a third telescopic rod (411), the outer surface of the third telescopic rod (411) is sleeved with a fourth spring (412), the bottom end of the third telescopic rod (411) is fixedly connected with a pushing block (413), the bottom end of the pushing block (413) is fixedly connected with a pushing wiring plate (414), the upper surface of the pushing block (413) is fixedly connected with a second connecting wire (415), and the side surface of the second support frame (401) is fixedly connected with a wire supporting rod (416) and a wire supporting ring (417).

8. The partial discharge withstand test device for high voltage circuit breakers according to claim 7, characterized in that: The pushing inclined plate (408) is slidably connected to the side surface of the turnover wiring plate (405), the connecting sub-wire (409) and the first connecting wire (410) are connected, the pushing block (413) is slidably connected to the inside of the second support frame (401), and the first connecting wire (410) and the second connecting wire (415) are placed above the wire supporting rod (416) through the inside of the wire supporting ring (417).

9. The partial discharge withstand test device for high voltage circuit breakers according to claim 2, characterized in that: The lower surface of the test platform (1) is fixedly connected with an insulating block (6), the lower surface of the insulating block (6) is fixedly connected with a supporting bottom plate (7), the side surface of the high-voltage circuit breaker body (8) is fixedly connected with a first wiring head (9), and the top end of the high-voltage circuit breaker body (8) is fixedly connected with a second wiring head (10).

10. The partial discharge withstand test device for high voltage circuit breakers according to claim 9, characterized in that: The ground wire connecting mechanism (5) comprises a moving conductive rod (501) slidably connected inside the third clamping plate (219), the outer surface of the moving conductive rod (501) is sleeved with a fifth spring (502), the upper surface of the first support frame (201) is fixedly connected with a conductive plate (503), the upper surface of the conductive plate (503) is fixedly connected with a second conductive rod (504), the side surface of the support bottom plate (7) is fixedly connected with a fixed clamping block (505), the inside of the fixed clamping block (505) is slidably connected with a sliding conductive block (506), the sliding conductive block (506) and the conductive plate (503) are mutually attached, and the fifth spring (502) and the second conductive rod (504) are connected through wires.

Images