한국초전도ㆍ저온공학회논문지 (Progress in Superconductivity and Cryogenics)

  • 제6권1호
  • /
  • Pages.48-52
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  • 2004
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  • 1229-3008(pISSN)
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  • 2287-6251(eISSN)
한국초전도저온학회 (The Korean Society of Superconductivity and Cryogenics)
권호 표지

저항형 고온초전도 한류기용 절연체의 절연 특성

Breakdown Characteristics of Insulators for a Resistor Type HTS Fault Current Limiter

  • 백승명 (경상대 대학원 전기공학과) ;
  • 류엔반둥 (경상대 대학원 전기공학과) ;
  • 김상현 (경상대 대학원 전기공학과)
  • 발행 : 2004.03.01
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초록

Breakdown characteristics of insulator-liquid nitrogen ($LN_2$) composite insulation for resistor type High $T_c$/ superconducting fault current limiter (HTSFCL) under ac and impulse voltage in $LN_2$ has been studied using model electrode systems. Electrodes for model electrode systems were made of SUS 304 contacted fiberglass reinforced plastic (FRP) and Au coated sapphire. The breakdown characteristics of model electrode systems were investigated experimentally for FRP thickness ranging from 1 mm to 5 mm. surface distance ranging from 2.5 mm to 7 mm and electrode gap ranging from 1 to 5 mm. The experimental data suggested that the breakdown voltage of model electrode systems in $LN_2$ is highly dependent on the surface distance, electrode gap as well as on the FRP thickness. Also, we had observed discharge traces and puncture due to high-voltage 60-Hz AC stress.

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참고문헌

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  4. IEEE TRANSACTION ON APPLIED SUPERCONDUCTIVITY v.9 no.2 Current Limiting Properties of YBCO-Films on Sapphire Substrates M.Lindmayer;H.Mosebach https://doi.org/10.1109/77.783557
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  6. IEEE TRANSACTION ON APPLIED SUPERCONDUCTIVITY v.12 no.1 Test of DC Reactor Type Fault Current Limiter Using SMES Magnet for Optimal Design EungRoLee;SeungjeLee;ChanjooLee;Ho-JunSuh;DuckKweonBae;HoMinKim;Yong-SooYoon;TaeKukKo https://doi.org/10.1109/TASC.2002.1018534
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