主开关主开关是在母排输入或输出端的线路断路器，所有的电流都要从那通过。
Main breaker a main breaker is a circuit breaker at the input or output of the bus, through which all of the bus power must flow.
采用无源滤波器治理谐波时，谐波电流会在母联断路器和各支路间流动。
When the passive filter is applied in harmonic suppression, the harmonic current may flow through the circuit breaker and filter branches.
针对母联电流相位比较式母差保护接线的重要性，文章介绍了一种带负荷测量法去验证母联电流相位比较式母差保护接线正确的方法。
Seeing that the importance of the bus protection wiring in bus coupler current phase comparison, in this paper an on-load testing verifying its wirings is introduced.
针对母联电流相位比较式母差保护接线的重要性，文章介绍了一种带负荷测量法去验证母联电流相位比较式母差保护接线正确的方法。
Seeing that the importance of the bus protection wiring in bus coupler current phase comparison, in this paper an on-load testing verifying its wirings is introduced.
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