六统一下母线保护的旁路代路问题及改进方案  

Bypass Switching Problem of Busbar Protection in Six Unifications and Its Improvement Scheme

作　　者：何振宇 张治 方顺 卿俊杰 汪祺航 He Zhenyu;Zhang Zhi;Fang Shun;Qing Junjie;Wang Qihang(State Grid Chengdu Electric Power Supply Company, Chengdu 610041, Sichuan, China)

机构地区：[1]国网四川省电力公司成都供电公司,四川成都610041

出　　处：《四川电力技术》2020年第4期84-87,共4页Sichuan Electric Power Technology

摘　　要：在现行的相关规范和标准下,母线保护装置运用于旁路代路方式时存在拒动和误动的隐患。深入分析了旁路在不同代路运行方式下母线保护的电流计算、逻辑判断以及开入和开出情况,并给出了相应的回路改进方案,且对旁路代路运行方式的软件程序设计提供了思路,为旁路代路下母线保护的安全稳定运行增加了一道保障。Under the current relevant codes and standards,there are hidden dangers of misoperation when busbar protection device is used in bypass switching mode.The current calculation,logic judgment,input and output of busbar protection under different bypass operation modes are analyzed.At the same time,the corresponding circuit improvement scheme is given,and the idea of software program design of bypass operation mode is proposed,which provides a guarantee for the safe and stable operation of busbar protection under bypass switching mode.

关 键 词：母线保护 旁路代路 二次回路 改进方案 

分 类 号：TM773[电气工程—电力系统及自动化]