Experimental results of 275-kV 3-kA REBCO HTS power cable

Masashi Yagi, Jin Liu, Shinichi Mukoyama, Takaharu Mitsuhashi, Jun Teng, Naoki Hayakawa, Xudong Wang, Atsushi Ishiyama, Naoyuki Amemiya, Takayo Hasegawa, Takashi Saitoh, Osamu Maruyama, Takeshi Ohkuma

    Research output: Contribution to journalArticle

    19 Citations (Scopus)


    A 30-m-long 275-kV 3-kA high-temperature superconducting (HTS) cable had been developed in a national project of the Materials and Power Applications of Coated Conductors project in Japan. The design of the cable was based on the design values obtained from ac loss properties, thermal behavior under short-circuit tests, and electrical properties, such as partial discharge properties, impulse withstand properties, and dielectric properties. Through the development, the material of the cable insulation was determined and designed on the basis of its design stresses and test conditions based on the IEC, JEC (Japan electrical standards), and other HTS demonstrations. This cable was also designed to withstand a short-circuit test of 63 kA for 0.6 s and to have low losses of 0.8 W/m at 3 kA, 275 kV, including ac loss and dielectric loss. Based on these designs, a 50-m cable was manufactured and tested. The short samples obtained from 50 m were confirmed to have the designed characteristics. Furukawa Electric constructed a demonstration system of a 30-m cable with two terminations and a cable joint. The demonstration had started since November 2012 at Shenyang in China. In this demonstration, a 30-day long-term test was conducted and monitored at a current of 3 kA and at a test voltage selected to verify a 30-year operational lifetime. Removal tests revealed the superior reliability of the 275-kV HTS cable system.

    Original languageEnglish
    Article number6998845
    JournalIEEE Transactions on Applied Superconductivity
    Issue number3
    Publication statusPublished - 2015 Jun 1



    • high voltage
    • power cable
    • Transmission lines
    • YBCO

    ASJC Scopus subject areas

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

    Cite this

    Yagi, M., Liu, J., Mukoyama, S., Mitsuhashi, T., Teng, J., Hayakawa, N., Wang, X., Ishiyama, A., Amemiya, N., Hasegawa, T., Saitoh, T., Maruyama, O., & Ohkuma, T. (2015). Experimental results of 275-kV 3-kA REBCO HTS power cable. IEEE Transactions on Applied Superconductivity, 25(3), [6998845]. https://doi.org/10.1109/TASC.2014.2385960