The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Influence of Harmonics in Power System Voltage on Arrester Diagnostics and its Compensation

피뢰기 열화진단에 있어 전원 고조파의 영향과 보정에 관한 연구

  • 김일권 (한국해양대학교 전기전자공학부) ;
  • 송재용 (한국해양대학교 전기전자공학부) ;
  • 한주섭 (한국해양대학교 산업기술연구소) ;
  • 길경석 (한국해양대학교 전기전자공학부) ;
  • 류길수 (한국해양대학교 IT공학부) ;
  • 조한구 (한국전기연구원)
  • Published : 2005.11.01
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Abstract

This paper dealt with the influence of harmonic voltages on arrester diagnostics and its compensation method by using a designed Pspice arrester model. A pure sinusoidal voltage and its 3$^{rd}$ harmonic voltage were applied to the model, and the leakage current components were analyzed. The simulation results have shown that the peak value of resistive leakage current depends not only on the phase of the 3$^{rd}$ harmonic voltage but also on the magnitude of it. In this paper, an approximated 5$^{th}$ order polynomial formula by the Least-Square-Technique was derived, and correction factors which compensate the error caused by the 3$^{rd}$ harmonic voltage were calculated.

Keywords

References

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