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Analysis on the dielectric characteristics of a composite insulation system composed of LN2 and GN2

첫 페이지 보기
  • 발행기관
    한국초전도저온학회 (구 한국초전도저온공학회) 바로가기
  • 간행물
    한국초전도·저온논문지 (구 한국초전도저온공학회논문지) KCI 등재 바로가기
  • 통권
    Vol.17 No.3 (2015.09)바로가기
  • 페이지
    pp.33-36
  • 저자
    Junil Kim, Onyou Lee, Young Kyu Mo, Seungmin Bang, Jong O Kang, Hongseok Lee, Seokho Nam, Hyoungku Kang
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A255255

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초록

영어
A liquid nitrogen (LN2) is usually used to be a coolant and insulant for a HTS coil system. HTS wires for a superconducting apparatus may be surrounded by gaseous nitrogen (GN2) due to film boiling generated by a quench or voids occurred by electrical breakdown. The increased maximum electric field intensity at GN2 may result in the degradation of dielectric strength of a HTS coil system. In this paper, a study on the dielectric characteristics of a composite insulation system composed of LN2 and GN2 is performed. A sphere-to-plane electrode system made with stainless steel is used to perform the experiments under AC and lightning impulse voltage condition. A sphere electrode is surrounded by GN2 and a plane electrode is immersed into LN2 to conduct dielectric experiments with a composite insulation system. The dielectric experiments are performed according to the level of LN2 from the plane electrode to a sphere electrode. It is found that the dielectric characteristics of a composite insulation system are dependent on the level of LN2 and the field utilization factor of an electrode system.

목차

Abstract
 1. INTRODUCTION
 2. EXPERIMENT
  2.1. Experimental Set-up
  2.2. Experimental Results
  2.3. Electric Field Analysis
 3. DISCUSSION
 4. CONCLUSIONS
 ACKNOWLEDGMENT
 REFERENCES

키워드

composite insulation high voltage nitrogen superconducting

저자

  • Junil Kim [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Onyou Lee [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Young Kyu Mo [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Seungmin Bang [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Jong O Kang [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Hongseok Lee [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ]
  • Seokho Nam [ Department of Electrical Engineering, Applied Superconductivity Lab, Yonsei University, Seoul, Republic of Korea ]
  • Hyoungku Kang [ Department of Electrical Engineering, Korea National University of Transportation, 50 Daehak-ro, Republic of Korea ] Corresponding author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국초전도저온학회 (구 한국초전도저온공학회) [The Korean Society of Superconductivity and Cryogenics (KSSC)]
  • 설립연도
    1998
  • 분야
    공학>전기공학
  • 소개
    21세기 핵심기술인 초전도공학과 저온공학분야의 기술 수준을 향상시키고, 선진 외국의 관련 학회와의 국제 교류 뿐만 아니라 이 분야에서 산.학.연의 학술활동 및 기술교류의 구심점으로의 그 역할을 성실히 수행하고자 한다.

간행물

  • 간행물명
    한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]
  • 간기
    계간
  • pISSN
    1229-3008
  • eISSN
    2287-6251
  • 수록기간
    1999~2026
  • 등재여부
    KCI 등재,SCOPUS
  • 십진분류
    KDC 427 DDC 537

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