22.9kV다중접지선로 지락고장점 대지유입전류 및 중성선분류 해석

An analysis of The ground fault current Distribution of 22.9kV-Y Lines

During ground faults in power system, large current and raised potential appear at nearby places. This paper presents an analytical procedure of the ground fault current for the towers of a transmission line(154kV) and distribution line(22.9kV) of an arbitrary number of spans during ground faults. In order to economically and securely protect against undesired consequences, it is necessary to evaluate as precisely as possible the value and distribution of the ground fault current.