500kV GIS隔离开关绝缘拉杆放电故障原因分析  

Cause Analysis on 500 kV GIS Switchgear Insulation Pulling Lever Fault

作　　者：霍凤鸣[1] 周新伟[2] 甄利[3] 李晓峰[1] 

机构地区：[1]河北省电力研究院,石家庄050021 [2]河北电力设备厂,河北邯郸056004 [3]河北省电力公司,石家庄050021

出　　处：《河北电力技术》2009年第4期7-8,共2页Hebei Electric Power

摘　　要：介绍神华河北国华沧东发电有限责任公司500 kV变电站系统组合电器绝缘拉杆短路放电状况,根据对故障隔离开关的现场解体检查结果,分析故障原因为:组装时的碰撞与挤压使尖角部位起层,带电后局部放电生成的分解物使内壁绝缘不断下降,最终导致接地短路放电。This article introduces the insulation pole discharge of Cangdong Power Plant 500 kV GIS and analyzes the fail ure,according to the disassembly result of the malfunction disconnector. The causes are layers on the sharp corner were formed by collision during assembly which caused disintegrant from partial discharge that result in declining insulation of the insulation pole inner-side.

关 键 词：GIS隔离开关 绝缘拉杆 局部放电 分解物 

分 类 号：TM264.1[一般工业技术—材料科学与工程]