한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제4권1호
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  • Pages.94-98
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  • 2002
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
권호 표지

솔레노이드형 고온초전도코일 모의전극계에서 부분 및 완전파괴전압특성 연구

A Study of PBD and BD Voltage Characteristics in the Simulate Electrode System of Solenoid Type High Temperature Superconducting Coils

  • 석복렬 (현대중공업 기전연구소)
  • 발행 : 2002.05.01
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초록

The Partial breakdown (PBD) and complete breakdown (BD) voltage characteristics in a composite insulation system of glass fiber reinforced plastics (GFRP) and liquid nitrogen are investigated to find the PBB and BD characteristics in solenoid type high temperature superconducting (HTS) coils at quench. The electrode system used is made from a coaxial spiral coil-to-cylindrical electrode with an insulation barrier and spacers, and is immersed in liquid nitrogen. A heater is mounted inside the coil electrode to generate boiling which occurs on quenched superconducting coils. The experimental results show that: (1) breakdown voltages are affected severely by the risetime of the applied voltage and the PBD inception voltage, (2) two kinds of BD mechanisms are found depending on the shape of the spacer, length of cooling channel and heater power.

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참고문헌

  1. Cryogenics v.38 no.11 Electrical Insulation Specification and Design Method for Superconducting Power Equipment M. Hara;J. Gerhold
  2. Handbook of Applied Superconductivity Dielectric Properties of Cryogens J. Gerhold;B. Seeber(ed.)
  3. IEEE Trans. on Appl. Superconductivity v.11 no.1 Development of 22kV/6.9kV Single-Phase Model for a 3MVA HTS Power Transformer K. Funaki(et al.)
  4. IEEE Trans. on Applied Superconductivity v.7 no.2 High Temperature Superconducting Fault Current Limiter Development E. M. Leung;A. Rodriguez;G.W. Albert;B. Burley;M. Dew;P. Gurrola;D. Madura;G. Miyata;K. Muehleman;L. Nguyen;S. Pidcoe;S. Ahmed;G. Dishaw;C. Nieto;I. Kersenbaum;B. Gamble;C. Russo;H. Boenig;D. Peterson;L. Motowildo;P. Haldar
  5. IEEE Trans on Dielectrics and Electricl Insulation v.6 no.1 A Study of Thermal Bubble Behavior in the Simulated Electrode System of HT Superconducting Coils B.Y Seok;N. Tamuro;M. Hara https://doi.org/10.1109/94.752018