某电站发电机出口断路器(GCB)分合闸位置显示异常分析

Analysis on Abnormal Position Display of Opening and Closing of GCB in a Power Station

液压弹簧操作机构是断路器应用最广泛的操作机构之一,其具有机构紧凑,可靠性高、传动效率高等优点,被广泛应用于高压断路器,其稳定性直接影响断路器动作的可靠性和稳定性。文章介绍了断路器分合闸时液压操作机构的动作原理,对一起发电机出口断路器在试验过程中处于中间位置进行了分析并得出结论。

The hydraulic spring operating mechanism is one of the most widely used operating mechanisms for circuit breakers.It has the advantages of compact structure,high reliability,and high transmission efficiency,and is widely used in high-voltage circuit breakers.Its stability directly affects the reliability and stability of circuit breaker operation.This paper introduces the action principle of hydraulic operating mechanism when circuit breaker is opened and closed,analyzes a generator outlet circuit breaker that was in the middle position during the test process,and draws conclusions.