摘要
继电保护装置的正确动作是保证电力系统安全稳定运行的先决条件,而保护定值的误整定将会导致保护拒动或者误动。文章对一起误整定导致区外故障发生误跳闸和一起误整定导致负荷波动引发误跳闸案例进行分析,探讨导致断路器误跳闸的原因,提出杜绝此类事件再次发生的防范措施。
The correct operation of the relay protection device is the prerequisite to ensure the safe and stable operation of the power system,and the missetting of the protection setting value will lead to the protection rejection or misoper-ation.This paper analyzes a case of missetting leading to an out-of-area fault trip and a case of missetting leading to load fluctuation leading to false trip of the circuit breaker,and discusses the causes of false trip of the circuit breaker.Finally put forward the prevention measures to prevent the recurrence of such incidents.
作者
张祥
李慧勇
ZHANG Xiang;LI Huiyong(Inner Mongolia Power(Group)Co.,Ltd.Ulanqab Power Supply Branch,Inner Mongolia Ulanqab 012000,China)
出处
《农村电气化》
2023年第11期39-40,共2页
Rural Electrification
关键词
继电保护
保护误动
误整定
relay protection
protection against misoperation
missetting
