Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Analysis on Operational Current and Current Distribution between Two Coils of flux-lock Type SFCL

자속구속형 고온초전도 전류제한기의 동작전류와 각 코일의 전류분류 분석

  • 박충렬 (전북대학교 전기공학과) ;
  • 임성훈 (전북대학교 공업기술연구센터) ;
  • 박형민 (조선대학교 전기공학과) ;
  • 최효상 (조선대학교 전기공학과) ;
  • 한병성 (전북대학교 전기공학과)
  • Published : 2005.08.01
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Abstract

A flux-lock type superconducting fault current limiter(SFCL) consists of two coils, which are wound in parallel each other through an iron core, and a high-$T_c$ Superconducting(HTSC) thin film connected in series with coil 2. If the current of the HTSC thin film exceeds its critical current by the fault accident, the resistance of the HTSC thin film generated, and thereby the fault current can be limited by the impedance of the fluk-lock type SFCL. In this paper, we investigated the dependence of both the fault current limiting characteristics and the current distribution between two coils on the operational current of the flux-lock type SFCL through the equivalent circuit analyses and short circuit tests. From the comparison of both the results, the experimental results well agreed with the analyses for equivalent circuit.

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References

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  1. Comparison of Fault Current Limiting Characteristics between the separated Three-phase Flux-lock Type SFCL and the Integrated Three-phase Flux-lock Type SFCL vol.22, pp.8, 2009, https://doi.org/10.4313/JKEM.2009.22.8.689