Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on the Breakdown Performance of Synthetic Polypropylene Laminated Paper for Application of a HTS Cable

고온초전도 케이블의 응용을 위한 PPLP의 절연파괴 특성연구

  • Kwag, Dong-Soon (Dept. of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Kim, Young-Seok (Dept. of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Kim, Hae-Jong (Applied Superconducting Lab, KERI) ;
  • Kim, Sang-Hyun (Dept. of Electrical Engineering, Gyeongsang National University and Engineering Research Institute)
  • 곽동순 (경상대학교 전기공학과 및 공학연구원) ;
  • 김영석 (경상대학교 전기공학과 및 공학연구원) ;
  • 김해종 (한국전기연구원 초전도 응용그룹) ;
  • 김상현 (경상대학교 전기공학과 및 공학연구원)
  • Published : 2003.05.30
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Abstract

In this paper, we researched breakdown characteristics of paper/liquid nitrogen composite insulation system for application of a high temperature superconducting cable. And, we have studied the AC breakdown performance of paper/ice composite insulating system immersed in liquid nitrogen. The electric strength in this paper/ice composite system is higher than that of paper/liquid nitrogen system. Furthermore this system shows a self-healing type breakdown behavior. Among the many kinds of liquid to be immersed and frozen to the ice, deionized water gives the highest electric breakdown strength. The paper/ice composite insulation system is thought to be one of good candidate for the electrical insulating system at cryogenic temperature.

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