Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Study of Partial Discharge Degradation of Insulating Materials in Liquid Nitrogen

액체$N_2$중 절연재료의 부분방전 열화 연구

  • Kim, H.H. (Dept. of Electrical Eng., Gyungsang National University) ;
  • Kim, S.H. (Dept. of Electrical Eng., Gyungsang National University) ;
  • Ma, D.Y. (Dept. of Electrical Eng., Gyungsang National University) ;
  • Chang, J.K. (Research Center, KEPCO) ;
  • NamGung, D. (Research Center, KEPCO) ;
  • Cho, J.W. (Applied Superconductivity Lab, KERI)
  • 김현희 (경상대학교 공과대학 전기공학과) ;
  • 김상현 (경상대학교 공과대학 전기공학과) ;
  • 마대영 (경상대학교 공과대학 전기공학과) ;
  • 장종근 (한전기술연구원 전력연구실) ;
  • 남궁도 (한전기술연구원 전력연구실) ;
  • 조전욱 (한국전기연구소 초전도응용연구사업팀)
  • Published : 1995.11.18
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Abstract

A superconducting cable is one of the promising methods of undground transmission of high electric power in the future. It is very important that composite insulation system of $LN_2$ and polymer films takes into consideration for application high $T_c$ superconductor. This study is about both the partial discharge and properties V-t in $LN_2$. As result, applied voltage doesn't depend on the radius of non-eroded area but eroded area. And eroded area is observed the formation such as the ring of a tree.

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