Test of Insulation of Double Pancake Windings for a 1MVA HTS Transformer

1MVA 고온초전도 변압기용 더블 팬케이크 권선의 절연시험

  • 김성훈 (서울대학교) ;
  • 김우석 (기초전력공학공동연구소) ;
  • 최경달 (한국산업기술대학교 에너지대학원) ;
  • 주형길 (한국산업기술대학교 에너지대학원) ;
  • 홍계원 (한국산업기술대학교 에너지대학원) ;
  • 한진호 (한국산업기술대학교 에너지대학원) ;
  • 한송엽 (서울대학교) ;
  • 송희석 (효성중공업 연구소) ;
  • 박정호 (효성중공업 연구소)
  • Published : 2003.07.21

Abstract

In a research and development team of high temperature superconducting (HTS) transformer for power distribution, prior to manufacture a single phase 1MVA 22.9 kV/6.6 kV HTS transformer, a 1MVA transformer for insulation test with windings made of copper tapes with the same size as BSCCO-2223 HTS tape was manufactured. The test transformer was composed of both the copper windings of double pancake type and the shell type core of laminated silicon steel plates. The characteristics tests of the test transformer were performed, such as no load test, load test and short test at 77k using liquid nitrogen. Insulation tests, lightning impulse test, power-frequency voltage test and external insulation test, were accomplished also.

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