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Convenient replacement structure for defect test simulation in GIS gas chamber

An internal defect and convenient technology, applied in the direction of testing dielectric strength, measuring devices, instruments, etc., can solve problems such as suspension defects, equipment insulation deterioration, metal particle defects, etc., to achieve simple and convenient layout defects, ensure discharge concentration, and facilitate The effect of the simulation test

Pending Publication Date: 2022-02-15
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Common defects mainly include metal particle defects attached to the surface of conductors and insulating parts in GIS, point discharge defects such as burrs, and suspension defects, etc. These defects are an important cause of internal insulation degradation and insulation damage of GIS equipment
When conducting theoretical research on defect discharge in GIS, it is necessary to arrange the above defects in the simulated GIS device, but there are often problems such as the size is too small to be arranged or fixed with other materials, which will cause large errors in the test, etc.

Method used

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  • Convenient replacement structure for defect test simulation in GIS gas chamber
  • Convenient replacement structure for defect test simulation in GIS gas chamber
  • Convenient replacement structure for defect test simulation in GIS gas chamber

Examples

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Comparison scheme
Effect test

Embodiment 1

[0046] Such as Figure 1 to Figure 5 As shown, this example provides a convenient replacement structure for the test simulation of metal particles, tips, and suspension defects in the GIS gas chamber. The structure includes a single-hole elastic insulating tape and a metal tip.

[0047] In this embodiment, a metal tip with a diameter of 0.8mm and a length of 6mm is taken as an example, and the implementation principle is as follows:

[0048] Insert the metal tip vertically from the single-hole elastic insulating tape and pass through it, and use the elasticity of the insulating tape to fix the metal tip in the single-hole elastic insulating tape. By pulling both sides of the single-hole elastic insulating tape and pasting it on the conductor, the length of the hole-shaped elastic insulating tape is 13mm, the width is 7mm, and the thickness is 0.5mm. The metal tip can use the elasticity of the insulating tape to change its contact with the conductor surface or The contact pres...

Embodiment 2

[0050] Such as Figure 6 and Figure 7 As shown, this example provides a convenient replacement structure for the test simulation of metal particles, tips, and suspension defects in the GIS air chamber. The structure includes porous elastic insulating tapes and metal particles.

[0051] In this embodiment, metal particles with a diameter of 1 mm are taken as an example, and the implementation principle is as follows:

[0052] Insert 9 metal particles from the lower end of the porous elastic insulating tape and fix them in the insulating tape by using the elastic effect of the insulating tape. According to the experimental requirements, the porous elastic insulating tape has 3 rows and 3 columns in the center, and the center distance is 2mm. 9 holes, the hole diameter is set to 0.6mm according to the size of the metal particles, by pulling the two sides of the porous elastic insulating tape and pasting it on the conductor or insulating piece. When the metal particles are arra...

Embodiment 3

[0054] Such as Figure 8 to Figure 11 As shown, this example provides a convenient replacement structure for the test simulation of metal particles, tips, and suspension defects in the GIS air chamber, including grooved elastic insulating tapes and metal suspension sheets.

[0055] In this embodiment, a metal suspension sheet with a length of 20 mm, a width of 10 mm, and a thickness of 1 mm is taken as an example. The implementation principle is as follows:

[0056] The metal suspension sheet is horizontally inserted into the groove of the insulating tape from the upper end of the groove type elastic insulating tape. The grooved elastic insulating tape has a length of 30mm, a width of 10mm, and a thickness of 3mm. The grooved elastic insulating tape can be pasted with the same length and width as the grooved insulating tape, and the insulating tape of different thickness can change the gap distance between the metal suspension sheet and the conductor or insulator.

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Abstract

The invention relates to a convenient replacement structure for defect test simulation in a GIS (Gas Insulated Switchgear) gas chamber. The structure comprises an elastic insulating tape, a viscous insulating material layer which is arranged on the lower surface of the insulating tape and is used for adhering to a conductor or an insulating part, and metal particles which are respectively matched with the elastic insulating tape and are used for simulating metal particle defects attached to the surfaces of the conductor and the insulating part in a GIS, a metal tip for simulating burr tip discharge defects on the surfaces of the conductor and the insulating part in a GIS, and a metal suspension sheet for overcoming defects of a suspension body. Compared with the prior art, the convenient replacement structure for defect test simulation in the GIS gas chamber has the advantages of simulating various defects, reducing errors of a gas chamber defect partial discharge simulation test, being simple in arrangement, accurate in defect arrangement, convenient and fast in type replacement and the like.

Description

technical field [0001] The invention relates to the technical field of GIS defect simulation detection, in particular to a convenient replacement structure for test simulation of metal particles, tips and suspension defects in a GIS gas chamber. Background technique [0002] In recent years, with the rapid development of the economy, the demand for electric power has been increasing, and power users have higher and higher requirements for the reliability of power grid operation and the quality of power supply. GIS is the key equipment for power transmission and transformation in the power system. The reliability of its operation is directly related to the safety and stability of the system. [0003] Years of operation and maintenance experience have shown that GIS equipment will inevitably have some defects due to manufacturing process, assembly quality, material aging and mechanical vibration in the process of production, transportation, installation and operation. Common ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1227
Inventor 高凯徐鹏傅晨钊田昊洋任茂鑫金立军邓瑾怡周刚捷
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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