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Wall feed-through sleeve with high-low voltage shielding

A technology of through-wall bushing, high and low voltage, applied in electrical components and other directions, can solve the problems of corona discharge, affecting the reliable operation of power grid system, insulation layer damage, etc., to reduce electrical stress, reduce or eliminate corona discharge, prolong The effect of service life

Inactive Publication Date: 2013-09-11
上海旭然电器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] High-voltage wall-piercing bushings are a common configuration in power systems. The indoor and outdoor high-voltage wall-piercing bushings used in three-phase AC system power stations and substation power distribution devices are prone to corona at the edge of the flange under high voltage. Discharge will cause serious damage to the insulation layer and affect the reliable operation of the grid system

Method used

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  • Wall feed-through sleeve with high-low voltage shielding
  • Wall feed-through sleeve with high-low voltage shielding
  • Wall feed-through sleeve with high-low voltage shielding

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Embodiment Construction

[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0026] refer to figure 1 , figure 2 , the wall bushing with high and low voltage shielding, including a wall bushing main body 1 made of insulating material, the wall bushing main body 1 is provided with a flange 4 for installing and fixing the wall bushing main body 1, the wall bushing The position of the flange 4 on the pipe main body 1 is covered with a shielding layer inside. The shielding layer includes a high-voltage shield 2 for high-voltage shielding and a low-voltage shield 3 for grounding. The high-voltage shield 2 is located on the inner wall of the main body 1 of the wall bushing. An insulating material is provided between the high-voltage shield 2 and the low-voltage shield 3 . The wall bushing main body 1 adopts the wall bushing main...

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Abstract

The invention relates to the field of electrical equipment, in particular to a wall feed-through sleeve. The wall feed-through sleeve with high-low voltage shielding comprises a wall feed-through sleeve body made of insulating materials. A flange used for installing and fixing the wall feed-through sleeve body is arranged on the wall feed-through sleeve body. A shielding layer wraps the interior of the position of the flange on the wall feed-through sleeve body. The shielding layer comprises a high-voltage shielding cover and a grounded low-voltage shielding cover, wherein the high-voltage shielding cover is used for achieving high-voltage shielding. The high-voltage shielding cover is located on the inner wall of the wall feed-through sleeve body. Insulating materials are arranged between the high-voltage shielding cover and the low-voltage shielding cover. Due to the fact that the shielding layer wraps the interior of the position of the flange of the wall feed-through sleeve body, electric field distribution is improved, electric stress on the insulating materials by an electric field is reduced, corona discharge is reduced or eliminated, the service life of the wall feed-through sleeve is prolonged, and reliable operation of a network system is ensured.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a wall-piercing bushing. Background technique [0002] High-voltage wall-piercing bushings are a common configuration in power systems. The indoor and outdoor high-voltage wall-piercing bushings used in three-phase AC system power stations and substation power distribution devices are prone to corona at the edge of the flange under high voltage. Discharge will cause serious damage to the insulation layer and affect the reliable operation of the power grid system. Contents of the invention [0003] The object of the present invention is to provide a wall-piercing bushing with high and low voltage shielding to solve the above technical problems. [0004] The technical problem solved by the present invention can adopt following technical scheme to realize: [0005] The wall-piercing bushing with high and low voltage shielding includes a wall-piercing bushing main body made of i...

Claims

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Application Information

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IPC IPC(8): H02G3/22
Inventor 孙东昌杨健盛晟
Owner 上海旭然电器有限公司
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