摘要
介绍了一起500 kV变电站线路保护远跳启失灵回路异常的处理案例,阐述了故障的查找步骤,分析了造成缺陷的原因并提出了可行的解决方案。
A case of handling the malfunction of line protection remote tripping circuit in 500 kV substation is introduced.The troubleshooting steps are discussed,the causes of the defects are analyzed,and feasible solutions are proposed.
作者
纪洁
胡汉
刘怀宇
冯兴荣
孙楠
JI Jie;HU Han;LIU Huaiyu;FENG Xingrong;SUN Nan(Maintenance Branch Company,State Grid Jiangsu Electric Power Company,Nanjing 210000,China)
出处
《电工技术》
2021年第5期64-65,68,共3页
Electric Engineering
关键词
线路保护
远跳保护
断路器失灵
虚接
line protection
remote-trip protection
circuit breaker failure
virtual connection
