Analysis on Influence of Metal Particles in Different Positions on Electric Field of GIS Disconnector

SHEN Fenghui; GAO Yang; CHEN Yu

doi:10.13296/j.1001-1609.hva.2024.08.014

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Analysis on Influence of Metal Particles in Different Positions on Electric Field of GIS Disconnector

Research & Analysis | 更新时间：2025-04-26

- Analysis on Influence of Metal Particles in Different Positions on Electric Field of GIS Disconnector
- High Voltage Apparatus Vol. 60, Issue 8, Pages: 113-119(2024)
- 作者机构：
  
  新东北电气集团高压开关有限公司沈阳电力科技开发分公司，沈阳　 110025
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2024.08.014
  CLC：
- Received：15 February 2024，
  
  Revised：21 April 2024，
  
  Published：16 August 2024
- 稿件说明：
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SHEN Fenghui, GAO Yang, CHEN Yu. Analysis on Influence of Metal Particles in Different Positions on Electric Field of GIS Disconnector[J]. High voltage apparatus, 2024, 60(8): 113-119.
DOI：

SHEN Fenghui, GAO Yang, CHEN Yu. Analysis on Influence of Metal Particles in Different Positions on Electric Field of GIS Disconnector[J]. High voltage apparatus, 2024, 60(8): 113-119. DOI： 10.13296/j.1001-1609.hva.2024.08.014.

摘要

隔离开关作为GIS的重要组成部件，如果有金属微粒等异物存在，将对隔离开关的绝缘性能产生影响。因此，计算GIS隔离开关带金属微粒时的电场分布至关重要。文中采用三维有限元分析计算方法对隔离开关无金属微粒和不同位置带金属微粒两种工况进行了电场强度计算。对比计算结果可知，屏蔽罩表面附着金属微粒所产生的电场畸变最为严重，绝缘拉杆表面和SF

气体中的金属微粒也会大大增加场强值，导致隔离开关极易放电。基于电场分析所得的计算结果，文中对隔离开关的生产和安装提出了合理的建议。

Abstract

Disconnector is an important component of GIS and

in case of foreign matter such as metal particles

insulation performance of the disconnector will be affected. Therefore

it is very important to calculate the electric field distribution of metal particles in disconnector of GIS. In this paper

the electric f

ield intensity calculation of the disconnector without metal particles and with particles at different positions is performed by using the three-dimensional finite element analysis method. It is known by comparing the calculation result that the electric field distortion due to the metal particles attached to the surface of shield is the most serious. The metal particles on the surface of insulating rod and in SF

will also increase the electric field intensity

likely causing discharge of disconnector. Based on the calculation results of electric field analysis

practical advice for the production and installation of disconnector is proposed.

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