Surge Analysis Considering Variation of Line Configuration Factor in Combined Distribution Systems with Power Cables

혼합배전계통 선로구성요소 변화를 고려한 선로 서지해석

  • 김병숙 (한전 전력연구원 배전연구소) ;
  • 이장근 (원광대 대학원 전기공학과) ;
  • 한병성 (전북대 전자정보공학부) ;
  • 이종범 (원광대 전기전자및정보공학부)
  • Published : 2007.03.01

Abstract

This paper analyzes overvoltage on testing line for various parameter effect examination. Model systems consist of overhead line and underground cable. The model considered actual characteristic data of distribution lines. and will be constructed at testing yard. The simulations were performed under various line configuration such as cable kinds, cable length, lightning wave, lightning wave time, transformer and branch circuits. The simulation models are established by EMTP/ATPDraw and Line Constants are calculated by ATP_LCC. When lightning surge strikes on conductor of overhead line, EMTP/ATPDraw calculates overvoltage in many cases. Simulation results will be compared with real testing results at testing yard. The compared results will be used to establish protection methods in actual underground distribution systems.

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