Research and Protecting Measures on Insulation Fault of Miniaturization GIS Equipment

WANG Jiayi; LI Jing; JIA Zhijie; WU Shuifeng; ZHOU Dianbo

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Research and Protecting Measures on Insulation Fault of Miniaturization GIS Equipment

更新时间：2025-11-18

- Research and Protecting Measures on Insulation Fault of Miniaturization GIS Equipment
- Vol. 39, Issue 1, Pages: 43-46(2019)
- 作者机构：
  
  1. 国网四川省电力公司电力科学研究院
  2. 国网湖南省电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM595
- Published：2019
- 稿件说明：
移动端阅览
[1]王嘉易,李晶,贾志杰,吴水锋,周电波.小型化GIS绝缘事故的分析及防范措施研究[J].湖南电力,2019,39(01):43-46.

WANG Jiayi, LI Jing, JIA Zhijie, et al. Research and Protecting Measures on Insulation Fault of Miniaturization GIS Equipment[J]. 2019, 39(1): 43-46.
[1]王嘉易,李晶,贾志杰,吴水锋,周电波.小型化GIS绝缘事故的分析及防范措施研究[J].湖南电力,2019,39(01):43-46. DOI：

WANG Jiayi, LI Jing, JIA Zhijie, et al. Research and Protecting Measures on Insulation Fault of Miniaturization GIS Equipment[J]. 2019, 39(1): 43-46. DOI：

摘要

本文对一例典型的小型化220 kV GIS的放电故障进行了分析

通过气体分解产物检测分析、现场检查和解体、三维电场仿真分析

得出GIS发生放电的原因为该型号GIS为小型化产品

内绝缘裕度偏低

且加工工艺不佳

开断过程中产生的金属粉尘及装配过程遗留金属异物导致内部电场分布畸变

内部绝缘击穿放电。最后

结合运行工况和放电原因对小型化GIS的现场安装、试验和运行维护等方面提出了预防性的措施和建议。

Abstract

In this paper

a typical insulation fault of 220 kV miniaturization GIS equipment is analyzed. Through detection and analysis of gas decomposition products

site inspection

disintegration investigation and three-dimensional simulation of electric field

the main reason of this insulation fault is found. Because of the low inside margin of insulation for the miniaturization GIS equipment

the poor quality

metal dust produced by interrupting process and metallic foreign body brought in during assembly process

the electric field is distorted and internal insulation is breakdown. Finally

combined with the operation condition and discharge reason

the preventive measures and suggestions for installation

experiment

operation and maintenance of miniaturization GIS equipment are proposed.

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