Analysis and Treatment of Gas-leakage in Gas-insulated Switchgear

ZHANG Xin-zhong

doi:10.13296/j.1001-1609.hva.2010.04.010

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Analysis and Treatment of Gas-leakage in Gas-insulated Switchgear

更新时间：2025-04-26

- Analysis and Treatment of Gas-leakage in Gas-insulated Switchgear
- High VoltageApparatus Vol. 46, Issue 4, Pages: 93-96(2010)
- 作者机构：
  
  上海恩翼帕瓦长城开关有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.04.010
  CLC： TM591
- Published：2010
- 稿件说明：
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[1]张新中.气体绝缘开关柜漏气问题的分析及处理[J].高压电器,2010,46(04):93-96.

ZHANG Xin-zhong. Analysis and Treatment of Gas-leakage in Gas-insulated Switchgear[J]. High voltageapparatus, 2010, 46(4): 93-96.
[1]张新中.气体绝缘开关柜漏气问题的分析及处理[J].高压电器,2010,46(04):93-96. DOI： 10.13296/j.1001-1609.hva.2010.04.010.

ZHANG Xin-zhong. Analysis and Treatment of Gas-leakage in Gas-insulated Switchgear[J]. High voltageapparatus, 2010, 46(4): 93-96. DOI： 10.13296/j.1001-1609.hva.2010.04.010.

摘要

气体绝缘开关柜漏气问题是影响开关设备安全可靠运行的关键问题。笔者以AEⅡ-40.5型气体绝缘开关柜为例

针对气室接地穿墙绝缘子出现漏气的问题

通过对接地穿墙绝缘子各相关环节和要素的逐一分析判断的方法

最终判定:设备在抽气和充气过程中

由于气室的弹性变形所产生的对接地穿墙绝缘子的非正常作用力

是导致接地穿墙绝缘子损伤而漏气的真正原因。并采取了改变接地穿墙绝缘子的刚性连接为软连接的措施

从根本上消除了气室变形对接地穿墙绝缘子的影响

彻底解决了由于接地穿墙绝缘子损伤而产生漏气的问题

为分析解决气体绝缘开关柜类似漏气问题提供了借鉴方法。

Abstract

Taking the AEII-40.5 gas-insulated switchgear as an example

this paper analyzes the gas-leakage of the grounding-through-wall insulator of gas room

and finds that the elastic deformation of the gas room during gassing and pumping processes imposes an abnormal force on the insulator

resulting in its damage and leakage.Substitution of soft-connection for the original hard-connection can completely eliminate this gas-leakage.

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