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Study on Selection of HTS Wire for Fabrication of Fault Current-limiting Type HTS Cables

사고전류 제한형 초전도케이블 제작을 위한 초전도 선재 선정에 관한 연구

  • Heo, Soung-Ouk (Department of Electrical Engineering, Chonbuk National University) ;
  • Kim, Tae-Min (Department of Electrical Engineering, Chonbuk National University) ;
  • Han, Byung-Sung (Department of Electrical Engineering, Chonbuk National University) ;
  • Du, Ho-Ik (HOPE IT Human Resource Development Center, Chonbuk National University)
  • 허성욱 (전북대학교 전기공학과) ;
  • 김태민 (전북대학교 전기공학과) ;
  • 한병성 (전북대학교 전기공학과) ;
  • 두호익 (전북대학교 HOPE IT 인력양성사업단)
  • Received : 2013.11.12
  • Accepted : 2013.11.24
  • Published : 2013.12.01

Abstract

When an abnormal condition occurs due to a fault current at a consumer location where electricity is supplied through a high-capacity and high-$T_c$ superconducting(HTS) cable, the HTS cable would be damaged if there is no appropriate measure to protect it. Therefore, appropriate measures are needed to protect HTS cables. The fault-current-limiting HTS cable that was suggested in this study performs an ideal transport current function in normal operations and plays a role in limiting a fault current in abnormal operation (i.e., when a fault current is applied). It has a structure that facilitated its self-current-limiting ability through device change and reconfiguration in the existing HTS cable without extra switching equipment. To complete this structure, it is essential to investigate about the selection of the superconducting wire. Therefore, in this paper, HTS wire using two types of different stabilization layer is compared and examined the stability and current limiting properties under the existence of a fault current.

Keywords

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