摘要
针对一起10kV开关柜接地故障扩大引发的大面积停电事故,分析了10kV中性点不接地系统发生单相接地时对地电容电流的危害,介绍了消弧线圈原理及选择。
In view of the large area power failure caused by the expansion of the grounding fault of 10 kV switchgear,this paper analyzes the risk of line-to-ground capacitive current when single phase grounding occurs in 10 kV neutral-unearthed system,and introduces the principle of arc suppression coil and its selection.
作者
郎进平
LANG Jinping(TISCO Lanxian Mining Co.,Ltd.,Lvliang 033500,Chin)
出处
《电工技术》
2018年第9期97-98,共2页
Electric Engineering
关键词
开关柜
电容电流
接地故障
switchgear
capacitive current
grounding fault