摘要
结合一起500 kV线路差动保护动作事故,分析了差动保护动作的原因,探讨了电流二次回路接线和一次通流检查验收的重要性,并提出了防范措施,可为电厂避免类似事故提供借鉴。
Based on a 500 kV line differential protection action accident,the causes of differential protection action are analyzed,and the importance of current secondary circuit wiring and primary current inspection and acceptance is discussed.The preventive measures are put forward,which can provide reference for power plants to avoid similar accidents.
作者
杨亮
YANG Liang(Jiangsu Nuclear Power Corporation,Lianyungang 222000,China)
出处
《电工技术》
2022年第1期157-158,160,共3页
Electric Engineering
关键词
差动保护
电流二次回路
一次通流
differential protection
current transformer secondary circuit
primary through-flow
