Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on Ground Fault Detecting System for DC Voltage Line in the Electric Power Plant

발전소 직류전압 전선로 접지검출시스템에 관한 연구

  • Lee, H.K. (Dept. of Control & Instr. Eng. Pusan National Univ. of Tech.) ;
  • Kim, N.H. (Dept. of Control & Instr. Eng. Pusan National Univ. of Tech.) ;
  • Park, C.H. (KEPCO Research Center) ;
  • Kim, T.S. (KEPCO Research Center)
  • 이형기 (부산공업대학교 제어계측공학과) ;
  • 김남호 (부산공업대학교 제어계측공학과) ;
  • 박찬호 (한국전력공사 기술연구원 전력연구실) ;
  • 김택수 (한국전력공사 기술연구원 전력연구실)
  • Published : 1995.07.20
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Abstract

This system can detect a ground fault point or a bad insulated line by measuring a power plant DC feeder insulation resistance at the uninterruptible power status. And when the power plant DC feeder with low frequency AC signal has a ground fault, this measuring system can keep recording of its ground fault current and phase checked by Z.C.T. Therefore the power plant could protect a unexpected service interruption.

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