Due to the influence of power system structure,operating conditions and other factors,the existing route selection methods have some shortcomings.In order to ensure the accuracy of line selection,this paper presents a method of line selection with pulse current,which flows through the fault line and combines with the second harmonic com-ponent detection technology to detect.The model and simulation of the non-effective grounding system with neutral point are carried out,and the field test of the high voltage laboratory is carried out to verify the effectiveness of the method.
single-phase groundingfault line selectionsecond harmonicpulse current line selection
万方数据
维普
