摘要
继电保护检修过程中的误碰事故给电网和设备带来很大的危害。通过几个典型事故案例的分析,总结了当前继电保护检修隔离措施中存在的一些缺点,提出了在二次回路中设计检修隔离点的防止措施。论文根据500kV变电所的典型配置提出了500kV保护和220kV保护检修隔离点的设计方案,并对继电保护不停电检修模式进行了探讨。
Accidents during protecting relay maintaining bring great damage to power grid and apparatus. This paper analyzes several cases of accident during protection relay maintaining and finds out some faults of secondary circuit isolation on maintaining. It indicates that design of isolation point for maintaining is an effective countermeasure against accidents. This paper also presents a design of 500 kV and 220 kV protection isolation for maintaining.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第6期84-87,97,共5页
Power System Protection and Control
关键词
二次回路
隔离
设计
secondary circuit
isolation
design
