双母双分段母线保护配置及母联分段开关失灵和死区保护动作分析

Analyses on 4-section Busbar Protection Configuration with Protection Acting Logic for Bus-tie and Subsection Switch Malfunction and Dead Zone Fault

本文介绍了青岩变电站220kV双母线双分段接线方式下母差保护的配置方式,对母联和分段开关在失灵和死区故障情况下母差保护的动作逻辑进行了分析,阐明了母差保护中母联及分段开关的失灵保护和死区保护的动作原理和动作过程,为运行人员处理此类事故提供了参考。

This article introduces Qingyan transformer substation 4-section busbar protection configuration mode for 220 kV lines. The acting logic of busbar protection at the time bus-tie or subsection switch malfunction or its dead zone fault occurs is discussed. The specific acting principle and process of this circuit breaker malfunction protection and its dead zone fault protection are fully illustrated, which provides a reference for substation operators to deal with accidents of this kind in real cases.