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

The Korean Institute of Electrical Engineers (대한전기학회)
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Switching Surge Analysis and Evaluation in Combined Transmission System with 345kV GIL

345kV급 가공송전선로와 GIL이 연계된 혼합송전계통에서 개폐과전압 해석 및 검토

  • 장화윤 (원광대 대학원 전기공학과) ;
  • 이종범 (원광대 공대 전기정보통신공학부) ;
  • 김용갑 (원광대 공대 전기정보통신공학부) ;
  • 장태인 (한국전력공사 전력연구원)
  • Received : 2011.06.15
  • Accepted : 2011.09.29
  • Published : 2011.10.01
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Abstract

This paper describes switching surge analysis for reclosing decision in 345kV combined transmission line with GIL. Reclosing operation should be decided based on the detailed technical analysis in combined transmission line because this line includes power cable section which is week on insulation. Insulation of power cable can be breakdown at the week point in case of reclosing moment. Therefore the detailed analysis has to be carried out by considering several conditions such as charging rate, inserting resistance, arrester, length ratio of power cable section, grounding resistance, etc. Analysis is performed by EMTP/ATP.

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References

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