Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on Insulating Design and Test of Mini-Model windings for a 22.9 kV Class HTS Transformer Reducing AC Loss

저손실 22.9 kV급 고온초전도 변압기를 위한 미니 모델 권선의 절연 설계 및 시험 연구

  • Baek, Seung-Myeong (Gyeongsang National University and Engineering Research Institute) ;
  • Cheon, Hyeon-Gweon (Gyeongsang National University and Engineering Research Institute) ;
  • Nguyen, Van Dung (Gyeongsang National University and Engineering Research Institute) ;
  • Kwag, Dong-Sun (Gyeongsang National University and Engineering Research Institute) ;
  • Lee, Chang-Hwa (Gyeongsang National University and Engineering Research Institute) ;
  • Kim, Hea-Jong (KERI) ;
  • Kim, Sang-Hyun (Gyeongsang National University and Engineering Research Institute)
  • 백승명 (경상대학교 및 공학연구원) ;
  • 천현권 (경상대학교 및 공학연구원) ;
  • 류엔반둥 (경상대학교 및 공학연구원) ;
  • 곽동순 (경상대학교 및 공학연구원) ;
  • 이창화 (경상대학교 및 공학연구원) ;
  • 김해종 (한국전기연구원) ;
  • 김상현 (경상대학교 및 공학연구원)
  • Published : 2004.05.21
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Abstract

This paper presents experimental data from model windings with different arrangement of coil in order to provide information to design a 22.9 kV class HTS transformer. Before experiment, the composite insulation of two different type of HTS transformers are investigated. The first basic of investigation is a breakdown characteristic of liquid nitrogen and flashover characteristic on the GFRP surface under ac and impulse, The second investigation is insulation design, manufacture and test of model windings. These include a AC withstand voltage test of 50 kV rms and a lighting impulse test of 150 kV at peak.

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