Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Effects of a shunt resistor on current limitation performance of an SFCL

분로저항이 초전도 한류기의 전류제한 효과에 미치는 영향

  • 최효상 (전력연구원 전력계통연구실 선임보연구원) ;
  • 현옥배 (전력연구원 전력계통연구실 책임연구원) ;
  • 김혜림 (전력연구원 전력계통연구실) ;
  • 김상준 (전력연구원 전력계통연구실 책임연구원) ;
  • 한병성 (전북대학교 전기공학과)
  • Published : 1999.10.01
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Abstract

We fabricated a resistive superconducting fault current limiter (SFCL) with a shunt resistor in order to bypass the transient current at faults. The SFCL consists of a YBCO films coated with an Au layer (10$\Omega$ at room temperature). which is to disperse the heat generated at hot spots in the YBCO films, and a 5$\Omega$ shunt resistor. The minimum quench current of the SFCL was found to be 12.2Apeak. This SFCL successfully controlled the fault current to below 23 Apeak. Which is otherwise to increase up to 103 Apeak. With the shunt resistor, the temperature of the SFCL rose the temperature of the SFCL rose three times slower than without the shunt, whereby the SFCL is protected at high currents.

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References

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