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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Turn-to-Turn Dielectric Characteristics of Coils for HTSFCL

고온초전도 한류기용 코일의 턴간 절연 특성

  • Baek, Seung-Myeong (Department of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Joung, Jong-Man (Department of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Lee, Chang-Hwa (Department of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Nguyen, Van Dung (Department of Electrical Engineering, Gyeongsang National University and Engineering Research Institute) ;
  • Kim, Sang-Hyun (Department of Electrical Engineering, Gyeongsang National University and Engineering Research Institute)
  • 백승명 (경상대학교 전기공학과 및 공학원) ;
  • 정종만 (경상대학교 전기공학과 및 공학원) ;
  • 이창화 (경상대학교 전기공학과 및 공학원) ;
  • 류엔반둥 (경상대학교 전기공학과 및 공학원) ;
  • 김상현 (경상대학교 전기공학과 및 공학원)
  • Published : 2003.08.22
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Abstract

Fault current limiters (FCL) are extensively needed to suppress fault currents, especially for trunk power systems heavily connected to high voltage/large current transmission lines. Due to its ideal electrical behavior, high-temperature superconductor fault current limiter (HTSFCL) becomes one of the most important developing trends of limiters in power system. This paper describes the result of an investigation of the dielectric characteristics of turn-to-turn insulation for pancake and solenoid type reactor coil in liquid nitrogen. The influence of thickness in a variety length, on AC, DC and impulse surface flashover has been investigated. Also, the relationships between the number of turn and breakdown characteristics were clarified. The information gathered in this test series should be helpful in the design of liquid nitrogen filled DC reactor type HTSFCL.

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