摘要
在简要分析绝缘地线电磁感应电压和间隙放电特性的基础上,提出接地故障期间的间隙放电会引起线路零序电抗X0的突变,进一步分析了X0的变化对500kV接地距离保护动作特性的可能影响。
This paper outlines the basic calculation and the analysis of electromagnetically induced voltage upon groundwire,and further analysis of sudden change of equivalent zero sequence impedance and its potential influence to power relaying.
出处
《中国电力》
CSCD
北大核心
1998年第2期64-67,共4页
Electric Power
关键词
绝缘地线
零序电抗
输电线路
继电保护
insulated groundwire zero sequence reactance earthing distance relaying