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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The Characteristics of Electrical Breakdown of Dielectric Paper and Cable under mechanical stress

기계적 응력상태에서 절연지 및 케이블의 전기절연 특성

  • Kim, Young-Seok (Dept. of Electrical Engineering, Gyeongsang Natl' Univ and Engineering Research Institute) ;
  • Kwag, Dong-Soon (Dept. of Electrical Engineering, Gyeongsang Natl' Univ and Engineering Research Institute) ;
  • Kim, Hae-Jong (Applied Superconductivity Lab, Korea Electrotechnology Research Institue) ;
  • Kim, Sang-Hyun (Dept. of Electrical Engineering, Gyeongsang Natl' Univ and Engineering Research Institute)
  • 김영석 (경상대학교 전기공학과 및 공학연구원) ;
  • 곽동순 (경상대학교 전기공학과 및 공학연구원) ;
  • 김해종 (한국전기연구원 초전도 응용그룹) ;
  • 김상현 (경상대학교 전기공학과 및 공학연구원)
  • Published : 2003.08.22
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Abstract

The electrical and mechanical properties of dielectric paper and cable at cryogenic temperature have been investigated to optimum insulating design of high-Tc superconducting(HTS) cable. From the results, Tensile strength of PPLP in liquid nitrogen was high more than that of air, but tensile strain could know that decrease sharply. According as tensile strength increases, the breakdown stress of PPLP in liquid nitrogen was decreased because PPLP was degradated. According as bending radius multiple is decrese, breakdown voltage decreased sharply. And bending radius multiple is thought that more than about 25 is suitable.

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