Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Relationship between Partial Discharge and Radiated Electromagnetic Waves in Liquid Nitrogen

대기압하의 액체질소중 부분방전과 방사전자파의 상호관계

  • 박광서 (영남대학교 전기전자 공학부) ;
  • 신호영 (영남대학교 전기전자 공학부) ;
  • 김충년 (영남대학교 전기전자 공학부) ;
  • 김기채 (영남대학교 전기전자 공학부) ;
  • 박원주 (영남대학교 전기전자 공학부) ;
  • 이광식 (영남대학교 전기전자 공학부) ;
  • 이동인 (영남대학교 전기전자 공학부)
  • Published : 1998.11.28
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Abstract

In this study, a relationship between partial discharge and the radiated electromagnetic waves is investigated by measuring electromagnetic waves using a biconical antenna and a spectrum analyzer. The patterns of frequency spectrum of radiated electromagnetic waves measured at the atmospheric pressure in Liquid Nitrogen($LN_2$) during the partial discharges in nonuniform electric field depend on positive DC power. From these points of view. it is considered that these results obtained from this investigation may be used as fundamental data for diagnosis and prediction of insulation on the equipments of superconducting and cryogenic applications.

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