一例500kV断路器重合闸不成功情况分析  

Accident Analysis for a Unsuccessful 500kV Circuit Breaker Reclosing

作　　者：樊越甫 刘国辉 王军峰 钟代宁 

机构地区：[1]洛阳供电公司检修公司,洛阳471000

出　　处：《高压电器》2012年第4期106-110,共5页High Voltage Apparatus

摘　　要：笔者通过对一例500 kV线路断路器重合闸不成功情况进行分析,得出了导致故障发生的原因是由于断路器本身重合闸闭锁压力值设置不合适,在外界环境温度发生骤降之后闭锁重合闸继电器动作,从而导致断路器重合闸不成功。笔者针对此原因制定了相应的策略,即是调整重合闸闭锁压力值至合适值以适应断路器在不同运行条件之下都可以正常运行、正确动作,保障设备和电网的安全稳定运行,并取得了良好的效果,对于防范类似故障的发生以及处理等具有一定的借鉴意义。By analyzed the case of unsuccessful reclosing situation of a 500 kV circuit breaker,the reasons of the fault was due to the improper value of the circuit breaker＇s low pressure interlocking settings.When the temperature of external environment sudden droped,low pressure interlocking relay action,leading to the unsuccessful reclosing of the circuit breaker.The paper developed a corresponding coping strategies according to the reason,that was adjusting the value of low pressure interlocking settings to the appropriate ones,ensure that the circuit breaker could operate normally and action correctly to adapt to different operating conditions.And protect the operation of the equipment and grid safely and stablly.The strategies achieved good results,for preventing and dealing with similar fault it was of a certain significance.

关 键 词：断路器 跳闸 重合闸 液压机构 压力闭锁 

分 类 号：TM561[电气工程—电器]