Analysis on Flange Root Crack of GIS Terminal

LI Shaobin; PENG Yong; TANG Wenbo; FAN Fangkun; YANG Zheng

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Analysis on Flange Root Crack of GIS Terminal

更新时间：2025-11-18

- Analysis on Flange Root Crack of GIS Terminal
- Vol. 41, Issue 4, Pages: 87-90(2021)
- 作者机构：
  
  长缆电工科技股份有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM595
- Published：2021
- 稿件说明：
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LI Shaobin, PENG Yong, TANG Wenbo, et al. Analysis on Flange Root Crack of GIS Terminal[J]. 2021, 41(4): 87-90.
DOI：

LI Shaobin, PENG Yong, TANG Wenbo, et al. Analysis on Flange Root Crack of GIS Terminal[J]. 2021, 41(4): 87-90. DOI：

摘要

分析了一起110 kV GIS终端环氧套管根部法兰面产生异常裂纹的故障

结果表明

当GIS终端顶部导电套与GIS仓导电杆的装配精度不足时

导电杆可能会在GIS终端环氧套管上产生形变应力

最终破坏环氧套管

根部法兰处形成的裂纹导致气体泄漏引发故障

最后提出了防止GIS发生漏气故障的建议。

Abstract

This paper analyzes a failure case of abnormal crack on flange root of epoxy bushing.When the assembling accuracy of the conductive sleeve on the top of the GIS terminal and the conductive bar of the GIS warehouse is not enough

the conductive bar may cause deformation stress on the Epoxy Sleeve of the GIS terminal

and finally destroy the epoxy sleeve.Cracks on epoxy bushing of GIS terminal cause failure and eventually leading a gas leakage. At the end of the article

suggestions of preventing GIS SF

leakage are put forward.

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