高压电器2013，Vol.49Issue(9)：119-123,5.
一起500 kV GIS隔离开关绝缘闪络的事故分析
Analysis on an Insulation Breakdown Accident of 500 kV GIS Disconnector
王静君 1黄瑜珑2
作者信息
- 1. 江苏省电力公司电力科学研究院,南京211103
- 2. 清华大学电机工程与应用电子技术系,北京100084
- 折叠
摘要
Abstract
An accident of insulation breakdown of a 500 kV GIS disconnector is introduced.The fault current and the SF6 content are analyzed,the faulty disconnector is disassembled,and the solid decomposition product is observed by SEM.It is found that the insufficient moment of the screw on the equalizing ring due to poor assembly process increases the contact resistance,which results in heating and melting of the screw to cause the accident.关键词
GIS/隔离开关/绝缘闪络Key words
GIS/ disconnector/ insulation breakdown分类
信息技术与安全科学引用本文复制引用
王静君,黄瑜珑..一起500 kV GIS隔离开关绝缘闪络的事故分析[J].高压电器,2013,49(9):119-123,5.
