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High-voltage air-gap screened processed cable terminal

A technology of cable terminals and high-pressure gas, which is applied in the direction of cable terminals, etc., can solve the problems of poor insulation performance of materials, electrical aging of insulating materials, loss of insulation, etc., and achieve improved electrical aging resistance, good interface performance, and elimination of partial discharge. Effect

Active Publication Date: 2009-03-18
GCA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Partial discharge will cause electrical aging of insulating materials and produce electrical trees. With the development of electrical aging, the insulation performance of materials will deteriorate or even lose insulation.

Method used

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  • High-voltage air-gap screened processed cable terminal

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Embodiment Construction

[0007] See attached figure 1 As shown, this embodiment includes an umbrella skirt 1 whose outer insulation is injection-molded by silicone rubber, an outlet rod 2, a semi-conductive shielding layer 3, a high-voltage shielding cover 4, a high-voltage shielding end 5, an embedded metal sleeve 6, and an epoxy sleeve 7 , insert fittings 8, umbrella skirt 1 is poured on the outlet rod 2 and epoxy sleeve 7, the epoxy sleeve 7 is embedded with a high-voltage shielding end 5, the high-voltage shielding end 5 is connected to the embedded metal sleeve 6, and the embedded metal sleeve There is a high-voltage shielding cover 4 at the connection between 6 and the bottom of the outlet pole 2. There is a layer of semi-conductive shielding layer 3 between the outlet pole 2 and the umbrella skirt. The semi-conductive shielding layer 3 extends into the high-voltage shielding end 5. The insertion fitting 8 is connected with the embedded metal sleeve 6 by a spring bolt, which is an automatic lock...

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Abstract

A cable terminal being processed by high voltage air gap shielding is prepared as pouring umbrella skirt on line out column and epoxy sleeve, embedding high voltage shielding end in epoxy sleeve, connecting said shielding end to internally embedded metal sleeve, setting high voltage shielding cover at bottom connection position of said metal sleeve and line out column, arranging a semiconductor shielding layer between line out column and umbrella skirt, setting armour clamp in internally embedded metal sleeve and connecting said clamp with said metal sleeve by spring bolt.

Description

technical field [0001] The invention relates to a cable terminal with high-voltage air gap shielding treatment. Background technique [0002] When insulating materials are in the electric field, impurities and air bubbles in the materials are prone to partial discharge. Partial discharge will cause electrical aging of insulating materials and produce electrical trees. With the development of electrical aging, the insulation performance of materials will deteriorate or even lose insulation. In the cable accessory terminal, to eliminate electrical aging, consider two aspects: one is the defect of the material itself, such as impurities, air bubbles, etc. in the material; the other is the design of the structure, and there is inevitably air at the connection of the components. Contents of the invention [0003] The purpose of the present invention is to effectively solve the partial discharge and electrical aging of the terminal, solve the problem of the traditional insertio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G15/02H02G15/04
Inventor 陈朝晖杨家坤吕玉春黄铭昌
Owner GCA CO LTD
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