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 Current Limiting Characteristics of Flux-Lock Type SFCL Using a Transformer Winding

변압기 권선을 이용한 자속구속형 초전도 전류제한기의 전류제한 특성 분석

  • Han, Tae-Hee (Department of Energy Resources Engineering, Jungwon University) ;
  • Lim, Sung-Hun (Department of Electrical Engineering, Soongsil University)
  • 한태희 (중원대학교 에너지자원공학부) ;
  • 임성훈 (숭실대학교 전기공학과)
  • Received : 2010.11.26
  • Accepted : 2011.01.13
  • Published : 2011.02.01
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Abstract

The fault current limiting characteristics of the flux-lock type superconducting fault current limiter (SFCL) using a transformer winding were investigated. The suggested flux-lock type SFCL consists of two parallel connected coils on an iron core and the transformer winding connected in series with one of two coils. In this SFCL, the high-TC superconducting (HTSC) element was connected with the secondary side of the transformer. The short-circuit experimental devices to analyze the fault current limiting characteristics of the flux-lock type SFCL using the transformer winding were constructed. Through the short-circuit tests, the flux-lock type SFCL using transformer winding was shown to perform more effective fault current limiting operation compared to the previous flux-lock type SFCL without the transformer winding from the viewpoint of the quench occurrence and the recovery time of the HTSC element.

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References

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