Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference (한국초전도저온공학회:학술대회논문집)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Development of HTS magnet cooled by solid nitrogen(I)

고화질소 냉각형 고온초전도마그네트 개발(I)

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  • Y.Iwasa ;
  • 오상수 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
  • 하홍수 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
  • 하동우 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
  • 권영길 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
  • 류강식 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
  • 이해근 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소) ;
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  • 한일용 (한국전기연구소 초전도응용연구그룹, MIT FBML, 대성전선 기술연구소)
  • Published : 2000.02.01
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Abstract

We are developing portable type HTS magnet system cooled by solid nitrogen. This system have recooling and recharging capabilities. In this paper, we report preliminary test results obtained from the experimental solid nitrogen system and pancake magnet would with Bi-2223/Ag tapes, respectively. The operation period was sensitively dependent on the vacuum rate n the cryostat, size of SUS tube for flowing N_{2}$, and liquid nitrogen to cool the cryostat. The fabricated coil I_{c}$was 75 A at 20 K in self field.

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