DOI QR코드

DOI QR Code

Electrical Insulation Characteristics of HTS Cables according to Bending Strain

고온초전도 케이블의 굴곡 변화에 따른 전기절연 특성

  • 곽동순 (경일대학교 소방방재학부) ;
  • 김상현 (경상대학교 전기공학과 및 공학연구원)
  • Published : 2009.03.31

Abstract

Research on the mechanical properties of the dielectric paper and mini-model cable are important for optimum electrical insulation design of HTS cable, because the HTS cable experience of mechanical stress, such as tensile and bending stress. Also, it is operated at cryogenic temperature. Therefore, this paper discusses the experiment results on the AC and lighting impulse breakdown characteristics, partial discharge inception and extinction characteristics, and external shape change of the insulation layer according to bending strain of the mini-model cable.

Keywords

References

  1. S. Nishijima, and M. Hara, "Mechanical influence on long-term dielectric performance of insulators", Cryogenics, Vol. 38, No. 11, pp. 1105-1113, 1998 https://doi.org/10.1016/S0011-2275(98)00098-8
  2. 김영석, 곽동순, 한철수, 김해종, 성기철, 김상현, "액체질소 중에서 기계적 응력에 따른 mini-model 케이블의 전기적 특성," 한국초전도저온공학회 논문지, 6권, 1호, pp. 22-27, 2004
  3. M. J. Jefferes, "Dielectric Loss and Voltage Breakdown in Liquid Nitrogen and Hydrogen", IEEE Trans. Elect. Insulation, Vol. 5, No. 3, pp. 83-91, 1970 https://doi.org/10.1109/TEI.1970.299101
  4. S. Mukoyma, "Design and Production of High-Tc Superconducting Power Transmission Cable", IEEE Trans. Appl. Supercond., Vol. 11, No. 1, pp. 43-46, 2001 https://doi.org/10.1109/77.920336
  5. H. Okubo, "Partial Discharge Inception Characteristics under Butt Gap Condition in Liquid Nitrogen/PPLP Composite Insulation System for High Temperature Superconducting Cable", IEEE Trans. Dielectrics and Electrical Insulation, Vol. 9, No. 6, pp. 939-944, 2002 https://doi.org/10.1109/TDEI.2002.1115487