The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Calculation of Line- To-Ground Fault Current Split Factor to Earth in Overhead Transmission Lines

가공송전선 지락시 고장전류의 접지분류계수 산정에 관한 연구

  • 최종기 (한전 전력연구원 전력계통연구소) ;
  • 이원교 (한전 전력연구원 전력계통연구소) ;
  • 최인혁 (한전 전력연구원 전력계통연구소) ;
  • 이상윤 (한전 전력연구원 전력계통연구소) ;
  • 황갑철 (한전 전력연구원 전력계통연구소)
  • Published : 2008.11.01
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Abstract

In case of a line-to-ground fault at transmission lines, a portion of fault current will flow into the earth through the footings of the faulted tower causing electrical potential rise nearby the faulted tower footings. In this situation, any buried pipelines or structures nearby the faulted tower can be exposed to the electrical stress by earth potential rise. Although many research works has been conducted on this phenomena, there has been no clear answer of the required separation distance between tower footings and neary buried pipeline because of its dependancy on the soil electrical charactersics of the concerned area and the faulted system.

Keywords

References

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