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

Abstract

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.

Keywords

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

References

  1. IEEE Std. 1299/C62.22.1-1996 "IEEE Guide for the Connection of Surge Arresters to Protect Insulated, Shielded Electric Power Cable Systems" 1996
  2. 한국전력, "設計 基準", 97본사단-181, 1997
  3. 한국전력공사, "배전계통 이상전압 측정 및 대책 연구 - 최종보고서", 2000
  4. IEC 60071-1, "Insulation Coordination - Part 1, Definitions, principles and rules"- Edition 8. 2006
  5. HAEFELY, SSG-ZUS Impulse Current Addition for SGS, HAEFELY High Voltage Test, 2006
  6. IEEE Std. C62.22-1997 "IEEE Guide for the Application of Metal-Oxide Surge Arresters for Alternating Current Systems" 1997
  7. 한국전력공사, "지중배전계통의 과도현상 해석 및 보호 대책 연구-최종보고서", 2007
  8. IEEE Std 1313-1993, "IEEE Standard for Power Systems - Insulation Coordination" 1993