一起线路接地引起主变开关跳闸的事故分析  

Analysis of a Main Transformer Switch Tripping Accident Caused by Line Grounding

作　　者：吴晨媛 陆文钦 WU Chenyuan;LU Wenqin(Changzhou Power Supply Company,State Grid Jiangsu Electric Power Company,Changzhou 213000,China)

机构地区：[1]国网江苏省电力有限公司常州供电分公司,江苏常州213000

出　　处：《电工技术》2021年第19期125-127,共3页Electric Engineering

摘　　要：针对江苏地区某110 kV主变开关跳闸事件,分析该主变低压侧及线路保护动作行为,判断相关继电保护动作行为的正确性,并进行事故原因分析。In view of the tripping event of a 110 kV main variable switch in Jiangsu province,the behavior of the main variable low voltage side and line protection action is analyzed.The correctness of the relevant relay protection action behavior is judged,and the cause of the accident is analyzed.

关 键 词：变电站 短路 主变后备保护 母联开关 

分 类 号：TM77[电气工程—电力系统及自动化]