电流回路异常导致的保护误动分析  

Analysis on Protection Maloperation Caused by Abnormal Current Circuit

作　　者：谢昊天 XIE Haotian(The Maintenance Company of Jiangsu Electric Power Company,Nanjing 211102)

机构地区：[1]江苏省电力公司检修分公司,江苏南京211102

出　　处：《电力安全技术》2021年第12期32-34,共3页Electric Safety Technology

摘　　要：为减少现场一次数据采集环节异常引起的电网事故,分析了两起由于交流电流回路异常导致的保护误动作事故,对比了两起事故的直接原因,并结合变电运维实际工作给出了现场防控措施。In order to reduce the power grid accidents caused by the abnormal primary data acquisition on site,two protection misoperation accidents caused by abnormal AC current circuits are analyzed,and the field preventive control measures are put forward with the combination of the substation operation and maintenance activities and the comparison of direct causes of the two accidents.

关 键 词：电流异常 误动作 防控措施 

分 类 号：TM77[电气工程—电力系统及自动化]