Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Ground Fault Current Distribution by Single Phase-to-Neutral Fault Tests in Power Distribution System

배전계통에서 1선 지락고장 시험에 의한 지락고장전류 분류에 관한 연구

  • Kim, Kyung-Chul (Department of Electrical Engineering, Hongik University) ;
  • You, Chang-Hun (Department of Electrical Engineering, Hongik University)
  • 김경철 (홍익대학교 전기공학과) ;
  • 유창훈 (홍익대학교 전기공학과)
  • Received : 2013.03.04
  • Accepted : 2013.04.25
  • Published : 2013.07.31
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Abstract

Phase to ground faults are possibly one of the maximum number of faults in power distribution system. During a ground fault the maximum fault current and neutral to ground voltage will appear at the pole nearest to the fault. Distribution lines are consisted of three phase conductors, an overhead ground wire and a multigrounded neutral line. In this paper phase to neutral faults were staged at the specified concrete pole along the distribution line and measured the ground fault current distribution in the ground fault current, three poles nearest to the fault point, overhead ground wire and neutral line. A simplified equivalent circuit model for the distribution system under case study calculated by using MATLAB gives results very close to the ground fault current distribution yielded by field tests.

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References

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