摘要
介绍了500kV变电站直流系统接地故障产生的原因及对设备的影响,分析了常用的直流接地故障查找方法,结合500 kV变电站直流接地实际案例,分析了直流接地故障的查找过程及故障原因,并对直流接地在建设施工阶段及运维阶段的预防措施进行探讨,以供参考。
The causes of grounding fault in DC system of 500 kV substations and their effects on equipment are introduced.The common methods of finding DC grounding fault are analyzed.Combined with the actual case of DC grounding in 500 kV substation,the process of finding DC grounding fault and the cause of the fault are analyzed.The preventive measures of DC grounding in the construction stage and operation and maintenance stage for reference are discussed.
作者
张珂卫
屈乾达
陈小平
黄义飞
朱三华
严玲玲
ZHANG Kewei;QU Qianda;CHEN Xiaoping;HUANG Yifei;ZHU Sanhua;YAN Lingling(Operation and Maintenance Branch,Yichang of Maintenance Company,State Grid Hubei Electric Power Co.,Ltd.,Yichang 443000,China)
出处
《电工技术》
2021年第8期99-100,103,共3页
Electric Engineering
