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Quench/recovery test results of the YBCO coated conductors(CCs) having various stabilizer thicknesses

YBCO coated conductors(CCs)의 안정화재 두께 변화에 따른 quench/recovery 특성 분석에 관한 연구

  • 권나영 (고려대학교 신소재공학과) ;
  • 김현성 (고려대학교 신소재공학과) ;
  • 김광록 (고려대학교 신소재공학과) ;
  • 김경준 (고려대학교 신소재공학과) ;
  • 임성우 (한전전력연구원 송배전연구소) ;
  • 김혜림 (한전전력연구원 송배전연구소) ;
  • 현옥배 (한전전력연구원 송배전연구소) ;
  • 이해근 (고려대학교 신소재공학과)
  • Published : 2009.09.30

Abstract

Since a stabilizer of YBCO coated conductor (CC) plays a very important role of bypassing over-current and transferring heat generated in the moment of fault, it is one of big issues to determine the material of the stabilizer and its dimension for the high performance of the HTS power application system. Especially, in the case of a superconducting fault current limiter (SFCL), which requires it to react immediately to the occurrence of fault, characteristics of stabilizer are decisive in limiting fault current and recovering superconducting properties during and after quenching. In this paper, the quench / recovery characteristics of YBCO CCs with various thickness of stabilizer were analyzed. The quench/recovery test carried out at 20 $V_{rms}$, 5 cycles (60 Hz) and results showed that as the thickness of the stabilizer decreased, both the final approach temperature and the recovery time decreased.

Keywords

References

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