摘要
针对某变电站220kV断路器非全相保护异常动作情况,对非全相保护和操作箱防跳跃回路进行分析,认为断路器非全相保护动作后未能启动防跳跃回路是造成保护异常动作的原因,并提出有针对性的整改措施。
This paper introduces the abnormal phenomena of 220kV circuit breaker incomplete phase protection,analyzes incomplete phase protection and operation cabinet anti-trip,considers that the cause of protection abnormal operation is that anti-trip circuit is not be start-up after circuit breaker incomplete phase protection,and advances alteration measures.
出处
《河北电力技术》
2010年第6期39-40,共2页
Hebei Electric Power
关键词
断路器
非全相保护
异常动作
防跳跃
二次回路
circuit breaker
incomplete phase protection
abnormal action
anti-trip
secondary circuit
