母联开关死区故障的母线保护动作行为分析

Bus Protection Action Analysis of Bus Coupler Breaker's Dead-zone Fault

阐述了母联开关在分位、合位、充电等状态时母线保护死区故障的逻辑原理,分析了母联电流互感器不同配置及安装位置下母线保护的动作行为特征,对母线保护的现场测试、母联电流互感器二次绕组的使用设计以及提高母线保护设备的安全运行水平具有一定的借鉴作用。

This paper represents several logic principles of bus coupler breaker’s dead-zone fault when bus coupler breaker is closed,opened or being charged. The action behaviors of bus protection when bus coupler current transformer is in varied collocation and installation position are analysed. Some standpoints are important to bus protection field debugging and bus coupler current transformer’s design.