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22.9kV 수전설비 Mesh 접지설계의 안전성 평가 사례
박상교(Sang-Gyo Park),최창규(Chang-Kyu Choi) 한국조명·전기설비학회 2013 조명·전기설비학회논문지 Vol.27 No.5
There is increasing demand for practical groundings for small-area substations because of the recent revision of Koreas Electrotechnical Regulations, which necessitates the method of evaluating their safety. This paper proposes a practical mesh grounding system for 22.9kV substations and studies how to evaluate its safety. The proposed grounding system is proved to obey the safety criteria of ANSI/IEEE Std. 80 via ANSI/IEEE Std. 80 method and computer simulation.