Harmonics Analysis of Leakage Current Waveforms and Surface Discharge for EPDM Polymer Insulator

EPDM 고분자 애자에 대한 표면방전 및 누설전류파형의 고조파분석

  • 박재준 (중부대학교 전기전자공학과) ;
  • 양태규 (목원대학교 전자정보보호공학부)
  • Published : 2004.09.01


This paper presents the results of spectrum analysis of leakage current waveforms on contaminated polymer insulators under fog conditions. This is a basic study on development of a monitoring for aging degree and surface pollution state using distortion rate(%) of 3rd and 5th harmonics according fundamental frequency[60Hz] under environment conditions. Arcing on the surface was always associated with distortion in the leakage current ; hence the low frequency components of the leakage current can be used as a means to evaluate the surface degradation. The results indicate that the distortion rate by spectrum analysis is available for the monitoring of contamination condition of EPDM Polymer insulators.


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