Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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Improvement of Current Limiting and Recovery Characteristics in Series Connection Type SFCL with Added Third Winding

3차권선이 추가된 직렬연결형 초전도한류기의 전류제한 및 회복 특성 향상

  • 고석철 (공주대학교 산학협력단) ;
  • 한태희 (중원대학교 첨단소재공학과) ;
  • 임성훈 (숭실대학교 전기공학부)
  • Received : 2014.03.19
  • Accepted : 2014.06.07
  • Published : 2014.08.31
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Abstract

The series connection type superconducting fault current limiter (SFCL) with added third winding, which was magnetically coupled in one iron core, was proposed. The proposed SFCL was expected to be more improved by just adding third winding into the conventional series connection type SFCL with two coils. To analyze the contribution of the third winding for the current limiting and the recovery characteristics of the SFCL, the short-circuit tests for the series connection type SFCL with the added third winding were performed together with the analysis on its electrical equivalent circuit. From the comparative analysis on the amplitude of the limited fault current and the power burden of the high-TC superconducting (HTSC) element comprising this SFCL, the improved current limiting and recovery characteristics of the series connection type SFCL using the third winding could be confirmed.

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References

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