Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
2
将电气线路的三相线及中线通过零式电流互感器后,零式电流互感器会把剩余电流信号转换为电压信号。
Putting the three-phase lines and middle line of the electrical circuit through the zero current transformer, the residual current signal will be converted into the voltage signal.