摘要
介绍了双母线带旁路接线方式和系统的保护配置,针对旁路代线路开关送电过程中,第二套线路保护未退出运行导致送电操作中线路跳闸现象,首先分析了跳闸原因及保护动作行为,然后对旁路代线路开关送电的一/二次设备操作顺序进行改进,最终实现电网稳定运行。
The double bus with bypass connection mode and the protection configuration of the system are introduced.During the power transmission process of the bypass line switched on,the second set of line protection did not exit operation,resulting in the line tripping during the power transmission operation.In view of this problem,the causes of tripping and the protective action behavior are analyzed.Then,the operation sequence of the first/secondary equipment of the bypass generation line switch power transmission is improved,and finally the stable operation of the power grid is realized.
作者
蔡清亮
厉荣杰
崔文婷
CAI Qingliang;LI Rongjie;CUI Wenting(State Grid Shandong Electric Extrahigh Company,Ji′nan 250118,China)
出处
《电工技术》
2023年第14期189-190,194,共3页
Electric Engineering
关键词
旁路
线路保护
倒闸操作
跳闸
bypass
line protection
switching operation
tripping
