Leakage Current Analysis of 18 kV Lighting Arrester

18kV 배전용 피뢰기의 누설전류 분석

  • Park, J.N. (LG Industrial Systems Electrotechnology R&D Center) ;
  • Lee, Y.H. (LG Industrial Systems Electrotechnology R&D Center) ;
  • Shin, Y.S. (LG Industrial Systems Electrotechnology R&D Center) ;
  • Su, J.M. (LG Industrial Systems Electrotechnology R&D Center) ;
  • Jang, S.H. (LG Industrial Systems Electrotechnology R&D Center)
  • Published : 2002.07.10

Abstract

In general, ZnO lighting arrester are known to exhibit an increases in resistive current with time, the rate of increase being exacerbated with increasing applied voltage. In addition, since the resistive leakage current caused by deterioration of ZnO lighting arrester mainly caused an increase of the third harmonic component, thereby it is possible the arrester degradation diagnosis by measuring the third harmonic component in the total leakage current. So, in this paper, we presents a leakage current measuring and analysis system of 18[kV] ZnO lighting arrester.

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