An Analysis Study on the Over-voltages by the Earth Fault in 22.9kV-Y Distribution Line

22.9kV 다중접지 배전선로 자락고장으로 인한 과전압 유압사고 분석연구

  • Published : 1999.07.19

Abstract

In 22.9kV-Y overhead lines, if there is an earth fault, high fault current causes surge type over-voltages around this place. There are generally two types of earth faults. One is an earth fault which occurs when a voltage line falls to earth line. The other occurs when a voltage line directly falls to the earth. This study presents an analysis method on the earth fault.

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