CN216646641U - Electrode system for measuring surface resistance of corona-proof belt - Google Patents
Electrode system for measuring surface resistance of corona-proof belt Download PDFInfo
- Publication number
- CN216646641U CN216646641U CN202122858625.XU CN202122858625U CN216646641U CN 216646641 U CN216646641 U CN 216646641U CN 202122858625 U CN202122858625 U CN 202122858625U CN 216646641 U CN216646641 U CN 216646641U
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- Prior art keywords
- insulating
- electrode system
- electrode
- corona
- measuring
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- Expired - Fee Related
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- 238000009413 insulation Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
At present, a metal electrode is usually attached to the surface of a sample to form an electrode system with a measuring electrode when the anticorona band resistivity is measured, but the electrode and the sample are not tightly attached during measurement, so that the resistivity test result is easily influenced, the electrodes cannot be kept parallel, the distance between the electrodes is difficult to control, and the accuracy of the measurement result cannot be ensured. The utility model comprises the following components: insulation board (9) and fix insulation support (11) and two sets of transverse slide (4) on the insulation board, every group the transverse slide be provided with insulating slider (8), two insulating slider be fixed with cutting edge electrode (1), two cutting edge electrode be fixed with terminal (2) be connected with direct current high voltage power supply and terminal (3) be connected with ground.
Description
Technical Field
The utility model relates to the technical field of electrical insulation test, in particular to an electrode system for measuring surface resistance of an anti-corona band.
Background
Along with the development of the power industry and the improvement of the living standard of people, the demand of electricity for industrial production and people's life increases day by day, which puts forward more strict requirements on the voltage grade and the capacity of the generator, the end part of a wire rod as the key part of the generator always has the condition of uneven electric field distribution, the phenomenon of port corona discharge is easy to occur, and the improvement of the capacity of the generator is not less hindered and challenged. The corona prevention treatment is carried out on the end part of the wire rod by winding the corona prevention belt, the electric field is homogenized by utilizing the nonlinear characteristic of the corona prevention belt, the voltage rise and flashover voltage of the wire rod of the motor are improved, and further the corona discharge of the wire rod is restrained. The nonlinear characteristic of the corona-proof band can be researched by measuring the resistivity of the corona-proof band under different field strengths, and a theoretical basis can be provided for actual production and further research.
At present, a metal electrode is usually attached to the surface of a sample to form an electrode system with a measuring electrode when the anticorona band resistivity is measured, but the electrode and the sample are not tightly attached during measurement, so that the resistivity test result is easily influenced, the electrodes cannot be kept parallel, the distance between the electrodes is difficult to control, and the accuracy of the measurement result cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the existing electrode system for measuring the surface resistance of an anti-corona belt, and provides an electrode system for measuring the surface resistance of the anti-corona belt, which is used for easily controlling the distance between electrodes when the surface resistance of the anti-corona belt is measured, leading the electrodes to be tightly contacted with a sample and improving the measurement accuracy.
The above purpose is realized by the following technical scheme:
an electrode system for measuring corona-resistant strip sheet resistance, comprising: the insulation board with fix insulation support and two sets of transverse slide on the insulation board, every group transverse slide be provided with insulating slider, two insulating slider be fixed with the cutting edge electrode, two the cutting edge electrode be fixed with the terminal of being connected with DC high voltage power supply and the terminal of being connected with ground.
The electrode system for measuring the surface resistance of the corona-proof belt is characterized in that a screw hole is formed in the insulating sliding block, a bolt can enter the screw hole from one end of the insulating sliding block in a rotating mode and is combined with a nut at the other end of the insulating sliding block to form a bolt structure, a gasket is arranged between the bolt structure and the insulating sliding block, and the gasket is circular.
The electrode system for measuring the surface resistance of the corona-proof belt is characterized in that the middle of the insulating plate is provided with a rotatable insulating block with a thread structure and a gripper fixed on the rotatable insulating block, and a corona-proof belt sample is placed on the upper part of the rotatable insulating block.
The electrode system for measuring the surface resistance of the anticorona band is characterized in that the cross section of the insulating sliding block is square.
Advantageous effects
The utility model can lead the corona-proof belt sample to be tightly contacted with the blade electrode through the rotatable insulating block with the threaded structure and the insulating slide block capable of moving transversely, also can lead the measuring area of the corona-proof belt sample to be kept flat, reduces the influence of an air gap on the test result and improves the accuracy of the test result.
The bolt structure can fix the insulating slide block on the transverse slide way, so that the distance between electrodes can be conveniently controlled.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is a front view of the insulating slider;
in the figure: 1. a blade-shaped electrode; 2. the binding post is connected with a direct-current high-voltage power supply; 3. a binding post connected with the ground; 4. a transverse slideway; 5. a gasket; 6. a bolt; 7. a nut; 8. an insulating slider; 9. an insulating plate; 10. a rotatable insulating block; 11. an insulating support; 101. the insulating block gripper can be rotated; 12. anticorona tape sample; 13. and a screw hole.
Detailed Description
Example 1:
an electrode system for measuring corona-resistant strip sheet resistance, comprising: insulation board 9 with fix insulation support 11 and two sets of transverse slipways 4 on the insulation board, every group transverse slipway be provided with insulating slide 8, insulation board, insulation support, insulating slide and transverse slipway's the same epoxy or polytetrafluoroethylene that is of material, two insulating slide be fixed with cutting edge electrode 1, two cutting edge electrode be fixed with terminal 2 be connected with DC high voltage power supply and terminal 3 be connected with ground, cutting edge electrode is copper or aluminium with the same material of terminal.
Example 2:
according to the electrode system for measuring the surface resistance of the corona-proof belt in the embodiment 1, the insulating slide block is internally provided with the screw hole 13, the bolt 6 can be rotated from one end of the insulating slide block to enter the screw hole and is combined with the nut 7 at the other end of the insulating slide block to form a bolt structure, and the gasket 5 is arranged between the bolt structure and the insulating slide block and is circular.
Example 3:
according to the electrode system for measuring the surface resistance of the anticorona strap in the embodiment 1 or 2, the middle part of the insulating plate is provided with the rotatable insulating block 10 with a thread structure and the hand grip 101 fixed on the rotatable insulating block, and the anticorona strap sample 12 is placed on the upper part of the rotatable insulating block.
Example 4:
an electrode system for measuring the surface resistance of an anticorona strip as set forth in embodiment 1 or 2 or 3, wherein said insulating slider has a square cross section.
Claims (4)
1. An electrode system for measuring corona-resistant strip sheet resistance, comprising: the insulation board with fix insulation support and two sets of transverse slipways on the insulation board, characterized by: each group of transverse slide is provided with an insulating slide block, two insulating slide blocks are fixed with blade electrodes, and two blade electrodes are fixed with a binding post connected with a direct-current high-voltage power supply and a binding post connected with the ground.
2. The electrode system for measuring the surface resistance of an anticorona strip as set forth in claim 1, wherein: the insulating slider inside be provided with the screw, the bolt can follow insulating slider one end rotatory get into the screw and with the nut combination of the insulating slider other end form the bolt structure, the bolt structure with insulating slider between be provided with the gasket, the gasket be circular.
3. An electrode system for measuring the surface resistance of an anticorona strip as set forth in claim 1 or 2, wherein: the middle part of the insulating plate is provided with a rotatable insulating block with a thread structure and a gripper fixed on the rotatable insulating block, and the corona-proof belt sample is placed on the upper part of the rotatable insulating block.
4. An electrode system for measuring the surface resistance of an anticorona strip as set forth in claim 1, 2 or 3, wherein: the cross section of the insulating slide block is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122858625.XU CN216646641U (en) | 2021-11-22 | 2021-11-22 | Electrode system for measuring surface resistance of corona-proof belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122858625.XU CN216646641U (en) | 2021-11-22 | 2021-11-22 | Electrode system for measuring surface resistance of corona-proof belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216646641U true CN216646641U (en) | 2022-05-31 |
Family
ID=81735259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122858625.XU Expired - Fee Related CN216646641U (en) | 2021-11-22 | 2021-11-22 | Electrode system for measuring surface resistance of corona-proof belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216646641U (en) |
-
2021
- 2021-11-22 CN CN202122858625.XU patent/CN216646641U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220531 |