Field Test and Analysis for Proper Location of Protective Equipment in Underground Distribution System

지중배전계통 보호설비 적정위치 선정을 위한 실증시험과 해석

  • 윤창섭 (원광대 대학원 전기공학과) ;
  • 이종범 (원광대 전기전자정보공학부)
  • Published : 2008.05.01


This paper describes the method for proper location of protective equipment in underground distribution cable through field test and analysis at testing lines. To prove the reliability for analysis simulated by EMTP/ATPDraw, the testing results obtained by the real test and the analysis for the same test lines were compared each other. The accuracy of analysis was proved by the comparison. Over voltages were measured and analyzed at each point of cable and switches in case of which lightning surge current was applied. The analysing method was applied to real distribution systems to select the proper location of protective equipment. It is evaluated that the location of protective equipment was properly selected.


Underground Distribution System;EMTP;Cable;Modeling;Field test


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