Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
권호 표지
DOI QR코드

DOI QR Code

Insulating Properties between Cryocooler and Magnet for the Conduction-Cooled HTS SMES System

전도냉각형 고온초전도 SMES의 냉동기와 마그네트 간의 절연 특성

  • 최재형 (경상대 대학원 전기공학과) ;
  • 곽동순 (경상대 대학원 전기공학과) ;
  • 천현권 (경상대 대학원 전기공학과) ;
  • 김해종 (한국전기연구원 초전도응용연구그룹) ;
  • 성기철 (한국전기연구원 초전도응용연구그룹) ;
  • 김상현 (경상대 공대 전기공학과)
  • Published : 2006.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

The conduction-cooled HTS SMES is operated in cryogenic and high vacuum condition. Thus. Insulation design at cryogenic temperature and high vacuum is a key and an important element that should be established to accomplish compact design is a big advantage of HTS SMES. However, the behaviors of insulators for cryogenic conditions in vacuum are virtually unknown. Therefore, active research and development of insulation concerning application of the conduction cooled HTS SMES was needed. In this study, the insulation characteristics at experimented high vacuum and cryogenic similar to running condition of SMES system. Also, investigated about insulation characteristics of suitable some materials to insulator for conduction-cooled HTS SMES. As these results. the basis data was obtained for insulation materials selection and insulation design for development of 600kJ class conduction-cooled HTS SMES.

Keywords

References

  1. H.G. Cheon, S.M. Baek, K.C. Seong, H.J. Kim, S.H. Kim, 'Insulation Characteristics for a Conduction-Cooled HTS SMES' , Journal of the Korea Institute of Applied Superconductivity and Cryogenics, Vol. 7, No. 2, pp. 39-43, 2005
  2. J. Gerhold, 'Properties of Cryogenic Insulants', Cryogenics 38, pp. 1063-1081, 1998 https://doi.org/10.1016/S0011-2275(98)00094-0
  3. Tanzo Nitta, Masakuni Chiba, Hisashi Uematsu, 'Characteristic of AC Surface Spark Voltage in LN2 and LHe' , IEEE Trans. on Applied Superconductivity. Vol. 10, No. 1, pp. 1325-1328, 2000 https://doi.org/10.1109/77.828480
  4. Craig Miller, 'Surface Flashover of Insulators' , IEEE Trans. on Electrical Insulation. Vol. 24, No. 5, pp. 765-786, 1989 https://doi.org/10.1109/14.42158
  5. M. Ohki, S. Saito, 'Barrier Effect on Surface Discharge in Air', Trans. IEE Japan, Vol. 108-A, No. 8, pp. 351-358, 1988
  6. Elizabeth S. Dettmer, Bruce M. Romenesko, Harry K. Charles, Bliss G. Carkhuff, Douglas J. Merrill, 'Steady-State Thermal Conductivity Measurements of AIN and SiC Substrate Materials' , IEEE Trans. on Components. Hybrids, and Manufacturing Tech., Vol. 12, No. 4, pp. 543-547, 1989 https://doi.org/10.1109/33.49013
  7. K. Nylund, R. Schuler, 'Insulation Systems for Synchronous Machines' , in Proceeding of the international conference SM 100, Zurich, part 1, pp. 182-188, 1991