Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Study on the Characteristics of 30 kVA Inductive High-Tc Superconducting Fault Current Limier

30 kVA급 유도형 고온초전도 한류기의 특성 연구

  • 이찬주 (연세대학교 전기전자공학과) ;
  • 이승제 (연세대학교 전기전자공학과) ;
  • 강형구 (연세대학교 전기전자공학과) ;
  • 배덕권 (연세대학교 전기전자공학과) ;
  • 안민철 (연세대학교 전기전자공학과) ;
  • 현옥배 (한국전력연구원 전력계통연구실) ;
  • 고태국 (연세대학교 전기전자공학과)
  • Published : 2002.05.01
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Abstract

The high-tc superconducting fault current limiters (SFCL) are studied worldwide to be classified as resistive type or inductive type such as magnetic shielding type and dc reactor type. This Paper deals with an open core type SFCL, a kind of magnetic shielding type SFCL. We manufactured a 30 kVA open core type SFCL. It was modified from the old one with a rated power of 8 kVA. We stacked four superconducting tubes as magnetic shielding material and used the same primary winding as the old one. The experiments were performed with a maximum source voltage of 1 kV. The results show that the fault current in the source voltage of 1 kVrms was reduced to be about 105 Apeak, which was calculated to be about 22 % of the fault current in the system without an SFCL.

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References

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