Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Design of HTS Current Lead for SMES Magnet

SMES 마그네트용 고온초전도 전류도입선 설계

  • 장현만 (경상대학교 대학원 전기전자공학과) ;
  • 오상수 (한국전기연구소 초전도응용연구그룹) ;
  • 조전욱 (한국전기연구소 초전도응용연구그룹) ;
  • 조영식 (창원대학교 대학원 전기전자제어공학과) ;
  • 하홍수 (한국전기연구소 초전도응용연구그룹) ;
  • 하동우 (한국전기연구소 초전도응용연구그룹) ;
  • 성기철 (한국전기연구소 초전도응용연구그룹) ;
  • 권영길 (한국전기연구소 초전도응용연구그룹) ;
  • 류강식 (한국전기연구소 전략기술연구단) ;
  • 김상현 (경상대학교 전기공학과)
  • Published : 2000.11.01
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Abstract

1.5 kA class HTS current leads for a SMES magnet, which are connected to a conventional vapor cooled copper leads, were designed. The HTS leads are composed of Bi-2223/Ag-Au tapes and a stainless stell tube. The estimated critical current of the lead is about 1.6 kA at 77.3 K and in a self magnetic field, and the heat input to the liquid helium from the cold end of the 35 cm lead is 0.4 W/lead. It has been made clear that the heat input decreases with increase of the lead length and decrease of the warm end temperature and Ag-Au/SC ratio.

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