Development of Westinghouse HTS Vapor-Cooled Current Leads

  • J. L. Wu
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)

Abstract

Application of ceramic high temperature superconductor (HTSC) to cryogenic current leads has successfully demonstrated the ability to significantly reduce the refrigeration requirements associated with current leads. Westinghouse Science & Technology Center has participated in this technology development from the very beginning and has now brought this technology into commercialization with a line of HTS (High Temperature Superconducting) vapor-cooled current leads products. In the process of developing this technology, we have performed design analysis; tested prospective HTSC of various composition and geometry from half a dozen vendors; developed designs of low resistance, high current capacity HTSC/copper contact joints; fabricated and extensively tested several current lead test models and prototypes; and performed application and cost/benefits analyses. These efforts, together with HTS current lead design parameters and performance data, are discussed.

Keywords

Voltage Drop Current Lead Heat Leak Copper Lead Lead Assembly 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J. R. Hull, “High temperature superconducting current leads,” IEEE Trans. Appl. Superconductivity, 3:864, (1993).Google Scholar
  2. 2.
    J. L. Wu, J. T. Dederer, P. W. Eckels, S. K. Singh, J. R. Hull, R. B. Poeppel, C. A. Yongdahl, J. P. Singh, M. T. Lanagan, and J. Balachandran, “Design and testing of a high temperature superconducting current lead,” IEEE Trans. Mag., 27:1861, (1991).CrossRefGoogle Scholar
  3. 3.
    J. L. Wu, J. T. Dederer and S. K. Singh, “Development of a multiple HTS current lead assembly for corrector magnets application,” Supercollider 5, Plenum Press, NY, (1994), p. 567.CrossRefGoogle Scholar
  4. 4.
    J. L. Wu, “Testing of a prototype high temperature superconducting current lead,” IEEE Trans. Appl. Supercon., 5:777, (1995).CrossRefGoogle Scholar
  5. 5.
    J. L. Wu, “Testing of high temperature superconductors for cryogenic current lead application,” IEEE Trans. Appl. Supercon., 3:396, (1993).CrossRefGoogle Scholar
  6. 6.
    J. L. Wu, “High current capacity joints of HTSC and normal metals,” Adv. Cryo. Eng., 39B: 1975, Plenum Press, New York, (1994).Google Scholar
  7. 7.
    J. L. Wu, “Application of HTSC in cryogenic current leads,” Proc. 6th US-Japan Workshop on High Tc Superconductors, World Scientific, Singapore, (1994), p. 65.Google Scholar
  8. 8.
    M.A. Green, R. Byrns, and S. J.St. Lorant, “Estimating the cost of superconducting magnets and the refrigerators needed to keep them cold,” Adv. Cryo. Eng., 37A:637(1991)Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • J. L. Wu
    • 1
  1. 1.Westinghouse Science & Technology CenterPittsburghUSA

Personalised recommendations