一起500 kV气体绝缘开关闪络事故的处理分析 

王伟1，张彦2，曲文韬3

1 国网山东省电力公司经济技术研究院，山东 济南 250021；2 国网技术学院，山东 济南 250002；
3 国网山东省电力公司检修公司，山东 济南 250001 
 

摘 要：介绍了一起500 kV气体绝缘开关(GIS)设备的绝缘事故，分析了其应急处置及抢修方案，并通过对放电痕迹和物质的分析推测了事故原因，该事故是因设备装备过程中壳体法兰面和绝缘盆环氧树脂面的间隙混入金属异物，由于设备振动导致异物位置偏移引起电场变化，致使闪络事故的发生。指出应严格现场施工质量管控，保证设备安装质量，确保电网安全稳定运行。
关键词：气体绝缘开关设备；闪络；事故处理
中图分类号：TM591；TM855 文献标识码：B 文章编号：1007-3175(2014)10-0034-03

Disposal and Analysis of 500 kV Gas Insulated Switchgear Flashover Accident 

WANG Wei1, ZHANG Yan2, QU Wen-tao3 
1 Shandong Electric Power Economic Research Institute, Jinan 250021, China; 
2 State Grid of China Technology College, Jinan 250002, China; 3 Shandong Electric Power Maintenance Company, Jinan 250001, China） 
 

Abstract: Introduction was made to an insulation accident of 500 kV gas insulated switchgear (GIS) equipment. This paper analyzed its emergency disposal and strategy management and determined accident causes via discharge track and material analysis. The accident was due to metal foreign objects mixed into the clearance between casing flange and insulation basin epoxy during equipment installation process. The vibration of the equipment caused foreign object position displacement with electric field change and thus flashover accident took place. It is pointed out that construction on site should be with strict quality management and control, to ensure equipment installation quality and to guarantee power grid in safe and stable operation.
           Key words: gas insulated switchgear; flashover; accident disposal

参考文献
[1] 罗学琛.SF6气体绝缘全封闭组合电器(GIS)[M].北京：中国电力出版社，2009. 
[2] 王伟，冯新岩，曲文韬，等.超声波法在GIS局部放电检测中的应用[J].电气技术，2010(7)：38-41.
[3] 徐世山，孟可风，刘文泉.一起363 kV GIS充电闪络故障的原因分析[J].高压电器，2007，43(1)：74-76.
[4] 杨振宇，何正兴，俞澄一.晋陵变220kVGIS的漏气检修及其相关问题[J].高压电器，2010，46(6)：93-97.