Sensor for state maintenance of high-voltage capacitor

Abstract

The utility model relates to the technical field of high-voltage capacitors, in particular to a sensor for state maintenance of a high-voltage capacitor, which comprises a sensor body, the high-voltage capacitor and two electroprobes, the two electroprobes are electrically connected with the sensor body through connecting wires, and a shell is sleeved outside the upper end of the high-voltage capacitor. Strip-shaped holes are formed in the two sides of the upper end of the shell, the two electroprobes are arranged in the two strip-shaped holes in a sliding mode respectively, the upper ends and the lower ends of the electroprobes extend out of the strip-shaped holes, the pen points of the two electroprobes correspond to the positions of two electrodes of the high-voltage capacitor respectively, sleeves are fixedly arranged on the inner walls of the two sides of the shell, abutting mechanisms are arranged on the two sleeves, and the abutting mechanisms are arranged on the sleeves. An adjusting mechanism is arranged between the two electroprobes, and positioning mechanisms are arranged on the outer walls of the two sides of the shell. Safety accidents caused by mistakenly touching the electrodes during operation can be avoided, safety is improved, adjustment can be carried out according to high-voltage capacitors with different electrode distances, and universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage capacitors, in particular to a sensor for state inspection and maintenance of high-voltage capacitors. Background Art

[0002] Capacitors are capacitors used in power systems and electrical equipment. When capacitors are used under AC voltage, their capacity is often expressed in terms of reactive power, with the unit being var or kilovar. High-voltage capacitors are mainly composed of outgoing porcelain bushings, capacitor element groups, and capacitor casings. In large substations, high-voltage capacitors can be used to form static phase-controlled reactor-type dynamic reactive compensation devices, which can improve the quality of electric energy.

[0003] When performing status inspection on a high-voltage capacitor, it is generally necessary to bring two electric pens into contact with the two electrodes of the high-voltage capacitor, and then the high-voltage capacitor can be detected through a sensor connected to the electric pens. However, in the prior art, the pen tip and electrodes of the electric pens are exposed, and accidental safety accidents may occur if the electrodes are accidentally touched during operation, which has a low safety level. Therefore, we have introduced a sensor for status inspection of high-voltage capacitors. Utility Model Content

[0004] The purpose of the utility model is to provide a sensor for high-voltage capacitor status inspection, which can not only avoid safety accidents caused by accidental touching of electrodes during operation, thereby improving safety, but also can be adjusted according to high-voltage capacitors with different electrode spacings, with strong versatility, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sensor for high-voltage capacitor status inspection comprises a sensor body, a high-voltage capacitor and two electric pens, wherein the two electric pens are electrically connected to the sensor body through a connecting line, a shell is sleeved on the outer upper end of the high-voltage capacitor, strip holes are provided on both sides of the upper end of the shell, the two electric pens are slidably arranged in the two strip holes, the upper and lower ends of the electric pens extend to the outside of the strip holes, the pen tips of the two electric pens correspond to the two electrode positions of the high-voltage capacitor, sleeves are fixedly provided on the inner walls on both sides of the shell, a tightening mechanism is provided on the two sleeves, an adjustment mechanism is provided between the two electric pens, and a positioning mechanism is provided on the outer walls on both sides of the shell.

[0007] Preferably, the clamping mechanism includes a sliding rod, which is slidably arranged in the sleeve, one end of the sliding rod extends outside the sleeve and is fixedly connected to the electric pen, and one end of the sliding rod located in the sleeve is fixedly connected to a first spring.

[0008] Preferably, the adjustment mechanism includes a screw, a threaded hole is provided at the upper end of the shell between the two bar holes, the screw thread is arranged in the threaded hole, the lower end of the screw is fixedly connected with a truncated cone block, and trapezoidal blocks are fixedly provided at the lower side of the truncated cone block on the opposite side of the two electric pens.

[0009] Preferably, the positioning mechanism comprises two L-shaped rods, which are respectively arranged on both sides of the shell, and brackets are fixedly provided on both side walls of the shell. The two brackets are rotatably connected to the center of the vertical part of the corresponding L-shaped rod through a rotating shaft, and the horizontal parts of the two L-shaped rods extend to the lower side of the shell and abut against the high-voltage capacitor, and a second spring is fixedly provided between the upper ends of the two L-shaped rods and the shell.

[0010] Preferably, a rotating wheel is fixedly provided on the upper end of the screw.

[0011] Preferably, the side wall of the rotating wheel is provided with anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The sensor for the status inspection of the high-voltage capacitor is provided with an L-shaped rod, an electric pen, a connecting wire, a shell, a bracket, a sleeve, a second spring, a truncated cone block, a rotating wheel, a screw rod, a trapezoidal block, a first spring and a sliding rod, so that the connecting wires on the two electric pens are electrically connected to the sensor body, and the upper ends of the two L-shaped rods are pinched at the same time. After the L-shaped rod squeezes the second spring, the shell is sleeved on the outer portion of the upper end of the high-voltage capacitor, and the L-shaped rod is loosened. The second spring pushes the L-shaped rod and clamps the horizontal part of the L-shaped rod with the sensor body, and the first spring pushes the sliding rod so that the trapezoidal block on the electric pen is always against the truncated cone block. According to the position of the electrode at the upper end of the sensor body, the rotating wheel is rotated, and the rotating wheel drives the screw rod to rotate and rise and fall at the same time. During the lifting process, the truncated cone block at the lower end of the screw rod drives the two electric pens to move away from or close to each other through the trapezoidal block, and can be easily adjusted according to the high-voltage capacitors with different electrode spacings. It can not only avoid the safety accidents caused by accidental electrode touching during operation, but also improve the safety. It can also be adjusted according to the high-voltage capacitors with different electrode spacings, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the structure of a sensor used for condition inspection of high-voltage capacitors.

[0015] Figure 2 Schematic diagram of the internal structure of the shell.

[0016] Figure 3 for Figure 2 Schematic diagram of the side structure.

[0017] Figure 4 for Figure 3An enlarged schematic diagram of the local part A in the figure.

[0018] In the figure: 1. sensor body; 2. high-voltage capacitor; 3. L-shaped rod; 4. electric pen; 5. connecting wire; 6. shell; 7. bracket; 8. sleeve; 9. second spring; 10. truncated cone block; 11. rotating wheel; 12. screw; 13. trapezoidal block; 14. first spring; 15. sliding rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 4 , the utility model provides a technical solution:

[0021] A sensor for high-voltage capacitor status inspection comprises a sensor body 1, a high-voltage capacitor 2 and two electric pens 4. The two electric pens 4 are electrically connected to the sensor body 1 through a connecting line 5. A shell 6 is sleeved on the outer upper end of the high-voltage capacitor 2. Bar holes are provided on both sides of the upper end of the shell 6. The two electric pens 4 are slidably arranged in the two bar holes. The upper and lower ends of the electric pens 4 extend to the outside of the bar holes. The pen tips of the two electric pens 4 correspond to the two electrode positions of the high-voltage capacitor 2 respectively. Sleeves 8 are fixedly provided on the inner walls on both sides of the shell 6. A tightening mechanism is provided on the two sleeves 8. An adjustment mechanism is provided between the two electric pens 4. A positioning mechanism is provided on the outer walls on both sides of the shell 6.

[0022] The tightening mechanism includes a slide bar 15 , which is slidably disposed in the sleeve 8 , one end of the slide bar 15 extends outside the sleeve 8 and is fixedly connected to the electric pen 4 , and one end of the slide bar 15 located in the sleeve 8 is fixedly connected to the first spring 14 .

[0023] The adjustment mechanism includes a screw 12. A threaded hole is provided at the upper end of the shell 6 between the two bar holes. The screw 12 is threadedly arranged in the threaded hole. The lower end of the screw 12 is fixedly connected to a truncated cone block 10. Trapezoidal blocks 13 are fixedly provided on the lower side of the truncated cone block 10 on the opposite side of the two electric pens 4.

[0024] The positioning mechanism includes two L-shaped rods 3, which are respectively arranged on both sides of the shell 6. Brackets 7 are fixedly provided on both side walls of the shell 6. The two brackets 7 are rotatably connected to the center of the vertical part of the corresponding L-shaped rod 3 through a rotating shaft. The horizontal parts of the two L-shaped rods 3 extend to the lower side of the shell 6 and are against the high-voltage capacitor 2. A second spring 9 is fixedly provided between the upper ends of the two L-shaped rods 3 and the shell 6.

[0025] A rotating wheel 11 is fixedly provided at the upper end of the screw rod 12 , and the rotating wheel 11 is convenient for rotating the screw rod 12 . The side wall of the rotating wheel 11 is provided with anti-skid patterns, and the anti-skid patterns are convenient for rotating the rotating wheel 11 .

[0026] When in use, the connecting wires 5 on the two electric pens 4 are electrically connected to the sensor body 1, and the upper ends of the two L-shaped rods 3 are pinched at the same time. After the L-shaped rods 3 squeeze the second spring 9, the shell 6 is sleeved on the outer upper end of the high-voltage capacitor 2, and the L-shaped rod 3 is loosened. The second spring 9 pushes the L-shaped rod 3 and clamps the horizontal part of the L-shaped rod 3 with the sensor body 1. The first spring 14 pushes the sliding rod 15 so that the trapezoidal block 13 on the electric pen 4 is always against the truncated cone block 10. According to the position of the electrode at the upper end of the sensor body 1, the rotating wheel 11 is rotated, and the rotating wheel 11 drives the screw rod 12 to rotate and rise and fall at the same time. During the lifting process, the truncated cone block 10 at the lower end of the screw rod 12 drives the two electric pens 4 to move away from or close to each other through the trapezoidal block 13, which can be easily adjusted according to the high-voltage capacitors 2 with different electrode spacings. It can not only avoid safety accidents caused by accidentally touching the electrodes during operation, but also improve safety. It can also be adjusted according to the high-voltage capacitors 2 with different electrode spacings, and has strong versatility.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor for high-voltage capacitor condition inspection, comprising a sensor body (1), a high-voltage capacitor (2) and two electric pens (4), characterized in that: The two electric pens (4) are electrically connected to the sensor body (1) via a connecting line (5); a shell (6) is sleeved on the upper end of the high-voltage capacitor (2); strip holes are provided on both sides of the upper end of the shell (6); the two electric pens (4) are slidably arranged in the two strip holes; the upper and lower ends of the electric pens (4) extend to the outside of the strip holes; the pen tips of the two electric pens (4) correspond to the two electrode positions of the high-voltage capacitor (2); sleeves (8) are fixedly provided on the inner walls on both sides of the shell (6); a tightening mechanism is provided on the two sleeves (8); an adjustment mechanism is provided between the two electric pens (4); and positioning mechanisms are provided on the outer walls on both sides of the shell (6).

2. A sensor for high-voltage capacitor condition inspection according to claim 1, characterized in that: The tightening mechanism comprises a slide rod (15) which is slidably disposed in the sleeve (8), one end of the slide rod (15) extending outside the sleeve (8) and fixedly connected to the electric pen (4), and one end of the slide rod (15) located in the sleeve (8) is fixedly connected to a first spring (14).

3. A sensor for high-voltage capacitor condition inspection according to claim 1, characterized in that: The adjusting mechanism comprises a screw rod (12), a threaded hole is provided at the upper end of the housing (6) between the two strip-shaped holes, the screw rod (12) is threadedly arranged in the threaded hole, the lower end of the screw rod (12) is fixedly connected to a truncated cone-shaped block (10), and a trapezoidal block (13) is fixedly provided at the lower side of the truncated cone-shaped block (10) on the opposite side of the two electric pens (4).

4. A sensor for high-voltage capacitor condition inspection according to claim 1, characterized in that: The positioning mechanism comprises two L-shaped rods (3), the two L-shaped rods (3) being respectively arranged on both sides of a housing (6), brackets (7) being fixedly provided on both side walls of the housing (6), the two brackets (7) being rotatably connected to the center of the vertical portion of the corresponding L-shaped rod (3) via a rotating shaft, the horizontal portions of the two L-shaped rods (3) extending to the lower side of the housing (6) and abutting against the high-voltage capacitor (2), and second springs (9) being fixedly provided between the upper ends of the two L-shaped rods (3) and the housing (6).

5. The sensor for high-voltage capacitor condition inspection according to claim 3 is characterized in that: A rotating wheel (11) is fixedly provided on the upper end of the screw rod (12).

6. A sensor for high-voltage capacitor condition inspection according to claim 5, characterized in that: The side wall of the rotating wheel (11) is provided with anti-slip grooves.

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