Insulating Design and Test of 22.9kV Class Mini-Model Transformer Considering AC Loss

AC Loss를 고려한 22.9kV급 Mini-Model 변압기의 절연 설계 및 시험

  • 백승명 (경상대 전기전자공학부) ;
  • 정종만 (한국전력공사 전력연구원 배전기술그) ;
  • 곽동순 (경상대 전기전자공학) ;
  • 김해종 (한국전기연구원 초전도응용연구그) ;
  • 석복렬 (현대중공업 기계전기연구) ;
  • 김상현 (경상대 전기전자공학부)
  • Published : 2004.08.01

Abstract

This paper presents experimental data from model windings with different arrangement of coil in order to provide information to design a 22.9kV 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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