Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Assembling and Insulation Test of 1MVA Single Phase HTS Transformer for Power Distribution

  • Kim, S. H. (Seoul National University) ;
  • Kim, W. S. (Electrical Engineering and Science Research Institute) ;
  • Kim, J. T. (Korea Polytechnic University) ;
  • Park, K. D. (Korea Polytechnic University) ;
  • H. G. Joo (Korea Polytechnic University) ;
  • G. W. Hong (Korea Polytechnic University) ;
  • J. H. Han (Korea Polytechnic University) ;
  • Lee, S. J. (Uiduk University) ;
  • S. Hahn (Seoul National University)
  • Published : 2003.11.01
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Abstract

1MVA high temperature superconducting (HTS) transformer with double pancake windings made of BSCCO-2223 HTS tapes was designed and manufactured. And prototype transformer with the same capacity was manufactured also. The each rated voltage of the HTS transformer is 22.9 kV and 6.6 kV. Four parallel BSCCO-2223 HTS tapes were wound in the double pancake windings of low voltage side. In order to distribute the currents equally in each HTS tapes, the three times transposition was performed between the double pancake windings. The windings of prototype transformer were wound using copper tape with the same size as BSCCO-2223 HTS tape. The core of the transformer was designed and manufactured as a shell type core made of laminated silicon steel plate. The several characteristics tests for the prototype transformer were performed in liquid nitrogen and insulation tests were accomplished also.

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References

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