조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제26권10호
  • /
  • Pages.95-101
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  • 2012
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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345kV 승압용 변전소의 뇌격에 의한 이상전압 해석

Analysis of Transient Voltage by Lightning Stroke at 345kV Step-up Transformer

  • 조만영 (숭실대학교 대학원 전기공학과) ;
  • 신호전 (숭실대학교 대학원 전기공학과) ;
  • 허재선 (숭실대학교 대학원 전기공학과) ;
  • 김재철 (숭실대학교 전기공학부)
  • 투고 : 2012.08.30
  • 심사 : 2012.09.21
  • 발행 : 2012.10.30
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초록

Typically, large scale power generation facilities are linked to 345kV transmission line through a step-up transformer. If the value of transient voltage by generating lightning stroke is large more than electric equipment's BIL, devices insulation is destroyed. LA(Lighting Arrester) is used as a main means of prevention. However, the installation of LA takes the constraints of installation place and expensive installation costs. Therefore, we need to carefully study whether installation of installation can be omitted and the most efficient place of installation. In this paper, we simulated the transient voltage detected by lightning stroke at each equipments in the 345kV transmission power grid by using EMTP-RV program.

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참고문헌

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