Analysis of Influence of 10 kV Line Partial Discharge on Middle-voltage Equipment and Modification for Monitoring Strategy
By establishing the equivalent circuit model of 10 kV cable and calculating the physical parameters of the cable, the spectrum characteristics of the pulse current signal transmitted in the cable are obtained. Based on this,the scheme is optimized according to the actual operation requirements of the urban distribution network. Aiming at detecting partial discharge signal in the middle and long period,by combining the equivalent capacitance circuit model of rear arrester,a good monitoring result can be achieved,thereby benefiting diagnosis and evaluation of the state of line insulation.
万方数据
维普
