Design and evaluation of 66 kV class RE-123 superconducting cable

T. Minamino, M. Ohya, H. Yumura, T. Masuda, T. Nagaishi, Y. Shingai, X. Wang, H. Ueda, Atsushi Ishiyama, N. Fujiwara

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    In the new national project, as wire and cable development, Sumitomo Electric Industries, Ltd. (SEI) is trying to develop a 66 kV/5 kArms high temperature superconducting (HTS) cable with its own REBa2Ca 3Ox (RE-123, RE = rare earth element) coated conductors. In an actual power grid, an inflow of current higher than the normal rated power (fault-current) can occur. The maximum fault-current condition is set at 31.5 kArms for 2 s for 66 kV-class transmission system in this project. Therefore, one of the technical targets in this project is to design the wires and cables to survive at this fault-current condition. As the first step, the prototype HTS cable was designed against the fault-current condition of 31.5 kArms for 2 s. The wires have copper plating as a stabilizer layer not to be damaged by over-currents. The designed HTS cable has a copper former and copper shield layers in parallel with the HTS conducting layers and HTS shield layers, respectively, to control the temperature rises in the cable core at fault-current conditions. As the second step, a sample HTS cable core was fabricated and fault-current tests were conducted to check its soundness. The temperature rises in the cable core were measured under various fault-current conditions. The critical current of the cable core was measured before and after the fault-current tests, and no deterioration in the critical current characteristics was observed. However, there was slight degradation of the n value. The investigation will be conducted, and the results will be fed back to designs of the RE-123 wires and cables.

    Original languageEnglish
    Pages (from-to)1576-1579
    Number of pages4
    JournalPhysica C: Superconductivity and its Applications
    Volume470
    Issue number20
    DOIs
    Publication statusPublished - 2010 Nov 1

    Fingerprint

    Superconducting cables
    Electric fault currents
    cables
    Cable cores
    evaluation
    Wire
    Temperature
    Cables
    wire
    Critical currents
    Copper
    copper
    Electric industry
    Copper plating
    critical current
    Rare earth elements
    Deterioration
    plating
    deterioration
    high current

    Keywords

    • Coated conductor
    • Fault-current
    • Power transmission cable
    • Textured metal substrate

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Energy Engineering and Power Technology
    • Electronic, Optical and Magnetic Materials

    Cite this

    Minamino, T., Ohya, M., Yumura, H., Masuda, T., Nagaishi, T., Shingai, Y., ... Fujiwara, N. (2010). Design and evaluation of 66 kV class RE-123 superconducting cable. Physica C: Superconductivity and its Applications, 470(20), 1576-1579. https://doi.org/10.1016/j.physc.2010.05.165

    Design and evaluation of 66 kV class RE-123 superconducting cable. / Minamino, T.; Ohya, M.; Yumura, H.; Masuda, T.; Nagaishi, T.; Shingai, Y.; Wang, X.; Ueda, H.; Ishiyama, Atsushi; Fujiwara, N.

    In: Physica C: Superconductivity and its Applications, Vol. 470, No. 20, 01.11.2010, p. 1576-1579.

    Research output: Contribution to journalArticle

    Minamino, T, Ohya, M, Yumura, H, Masuda, T, Nagaishi, T, Shingai, Y, Wang, X, Ueda, H, Ishiyama, A & Fujiwara, N 2010, 'Design and evaluation of 66 kV class RE-123 superconducting cable', Physica C: Superconductivity and its Applications, vol. 470, no. 20, pp. 1576-1579. https://doi.org/10.1016/j.physc.2010.05.165
    Minamino, T. ; Ohya, M. ; Yumura, H. ; Masuda, T. ; Nagaishi, T. ; Shingai, Y. ; Wang, X. ; Ueda, H. ; Ishiyama, Atsushi ; Fujiwara, N. / Design and evaluation of 66 kV class RE-123 superconducting cable. In: Physica C: Superconductivity and its Applications. 2010 ; Vol. 470, No. 20. pp. 1576-1579.
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    AU - Nagaishi, T.

    AU - Shingai, Y.

    AU - Wang, X.

    AU - Ueda, H.

    AU - Ishiyama, Atsushi

    AU - Fujiwara, N.

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    KW - Textured metal substrate

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