Over-current characteristics of superconducting model cable using YBCO coated conductors

Atsushi Ishiyama, X. Wang, H. Ueda, M. Yagi, S. Mukoyama, N. Kashima, S. Nagaya, Y. Shiohara

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    For the application to power transmission cables, a number of YBCO tapes would be assembled and wound in spiral on a Cu-former. YBCO tapes and the Cu-former are connected in parallel and they might be subjected to short-circuit fault currents 10-30 times the operating current. In this study, we constructed a 1 m long YBCO model cable. Over-current with a peak of 31.5 kArms and a duration of 2.0 s, which was established by JEC (Japanese Electrotechnical Committee), was applied to this cable in a liquid nitrogen bath. The redistribution of the transport current between YBCO tapes and the Cu-former were examined by using Hall sensors. The numerical simulations were carried out using a newly developed computer program based on the 3D finite element method (FEM) in order to clarify the over-current characteristics in the cable. From the comparison of the experimental and simulation results, the validity of the developed computer program was confirmed. Therefore, we performed the simulations of a 10 m long model cable when carrying a fault current of 31.5 kArms applied for a durations of 2.0 s, and also estimated the influence of the cross-section area of the Cu-former and the Cu shield layer on the thermal behavior of the model cable by using the developed computer program.

    Original languageEnglish
    Pages (from-to)2041-2045
    Number of pages5
    JournalPhysica C: Superconductivity and its Applications
    Volume468
    Issue number15-20
    DOIs
    Publication statusPublished - 2008 Sep 15

    Fingerprint

    cables
    Cables
    conductors
    Tapes
    tapes
    Computer program listings
    Electric fault currents
    computer programs
    power transmission
    simulation
    short circuits
    Liquid nitrogen
    Power transmission
    liquid nitrogen
    Short circuit currents
    baths
    finite element method
    Finite element method
    sensors
    cross sections

    Keywords

    • Numerical simulation
    • Over-current
    • YBCO power transmission cable
    • YBCO tape

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Over-current characteristics of superconducting model cable using YBCO coated conductors. / Ishiyama, Atsushi; Wang, X.; Ueda, H.; Yagi, M.; Mukoyama, S.; Kashima, N.; Nagaya, S.; Shiohara, Y.

    In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 2041-2045.

    Research output: Contribution to journalArticle

    Ishiyama, Atsushi ; Wang, X. ; Ueda, H. ; Yagi, M. ; Mukoyama, S. ; Kashima, N. ; Nagaya, S. ; Shiohara, Y. / Over-current characteristics of superconducting model cable using YBCO coated conductors. In: Physica C: Superconductivity and its Applications. 2008 ; Vol. 468, No. 15-20. pp. 2041-2045.
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