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Rubber and plastic insulation wall bushing partial discharge test whole set voltage-sharing device

A technology of wall-piercing bushing and partial discharge, which is applied in the direction of shielding devices and testing dielectric strength, etc. It can solve the problems that the degree of insulation cannot be truly reflected, the test environment is harsh, and the flange does not have a pressure equalizing device, etc., to achieve reduction Metal suspension discharge, eliminate corona discharge, effective and accurate detection data

Inactive Publication Date: 2013-09-04
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the pre-partial discharge test of rubber and plastic insulating wall bushings, there is no special voltage equalizing ring, and the voltage equalizing ring of the transformer test is generally used, which is very inconvenient to install on site and there is no voltage equalizing device on the flange part, which cannot truly reflect the quality of the insulation degree
In order to overcome the above-mentioned technical difficulties, it is necessary to develop a special voltage equalizing device to solve the problem that the partial discharge test has strict requirements on the test environment

Method used

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  • Rubber and plastic insulation wall bushing partial discharge test whole set voltage-sharing device
  • Rubber and plastic insulation wall bushing partial discharge test whole set voltage-sharing device
  • Rubber and plastic insulation wall bushing partial discharge test whole set voltage-sharing device

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Embodiment Construction

[0026] The invention is a complete set of pressure equalizing device for partial discharge test of rubber and plastic insulating wall bushing. Such as figure 1 as shown, figure 1 It is a schematic diagram of the overall structure of the present invention. It includes two end equalizing rings 5, one flange equalizing ring 4, one hook equalizing ring 2 and two strap equalizing rings 3. The above mentioned equalizing rings are all made of metal materials such as aluminum or stainless steel. production.

[0027] Such as figure 2 as shown, figure 2 It is the appearance diagram of the pressure equalizing ring at the middle end of the present invention, image 3 It is an expanded view of the pressure equalizing ring at the end of the casing in the present invention. The pressure equalizing ring 5 at the end is made of polished and smooth aluminum metal material, which can play the role of a uniform electric field, and can eliminate the corona discharge at the end of the rub...

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Abstract

The invention relates to the technical field of a voltage-resistant and partial discharge test voltage-sharing device, in particular to a rubber and plastic insulation wall bushing partial discharge test whole set voltage-sharing device which is particularly suitable for rubber and plastic insulation wall bushing electric equipment. The device comprises two end portion voltage-sharing rings, a flange voltage-sharing ring, a hook voltage-sharing ring and two hanging belt voltage-sharing rings. The device has the effect of a uniform electric field, bushing end portion brush discharge is removed, the voltage-sharing rings can be in tight contact with a rubber and plastic insulation wall bushing and a flange, no gaps are reserved, and the voltage-sharing rings are adaptive to bushing end portions and flanges with various sizes and shapes. Strong practicability and portability are achieved, structure is simple and reasonable, convenience and quickness are achieved, interference from metal suspension discharge, brush discharge, electromagnetic waves, noise and the like can be greatly reduced, detected data are effective and accurate, using effect is obviously better than that of a partial discharge test without a special voltage-sharing ring, and popularization and application are benefited.

Description

technical field [0001] The present invention relates to the technical field of a pressure equalizing device for withstand voltage and partial discharge test, in particular to a complete set of pressure equalizing device for partial discharge test of rubber and plastic insulating wall bushing, especially suitable for electrical equipment of rubber and plastic insulating wall bushing . Background technique [0002] Rubber-plastic insulating wall bushing is a new type of wall bushing, and it is a replacement product for the widely used porcelain wall bushing. Measuring the partial discharge can effectively find the inherent defects of the internal insulation and the local hidden dangers caused by the aging of the insulation due to long-term operation. Research and application of its partial discharge detection method can detect partial discharge and its intensity in a timely, effective and sensitive manner, and is also an important means to improve the reliability of safe oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/18G01R31/12
Inventor 汪宇孙哲邓志权孙长龄王怀江徐学民付殿涛高连生
Owner STATE GRID CORP OF CHINA
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