Current limiting characteristics of 1-2kV/70A superconducting fault current limiter based on YBCO thin films

1-2kV/70A급 박막형 초전도 한류기의 전류제한 특성

  • 최효상 (한국전력공사 전력 연구원) ;
  • 현옥배 (한국전력공사 전력 연구원) ;
  • 김혜림 (한국전력공사 전력 연구원) ;
  • 차상도 (한국전력공사 전력 연구원) ;
  • 최용선 (한국전력공사 전력 연구원) ;
  • 임성우 (한국전력공사 전력 연구원) ;
  • 황시돌 (한국전력공사 전력 연구원)
  • Published : 2002.02.01

Abstract

We present current limiting properties of 1.2kV/70A superconducting fault current limiter based on YBCO thin films. This is consisted of 6 wafers (3 parallel $\times$ 2 serial connection) with 4 inch-diameter YBCO thin film. The quench current Iq of the switching elements vary between 33.9 and 35.6 A. Within the difference of 0.5 A in the sum of quench current Iq in two stacks, the serial connection of the stacks showed the simultaneous quench behavior in applied power of 1.2 kV/70A.

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