Status of a 275 kV class REBCO superconducting cable development

S. Mukoyama, M. Yagi, T. Mitsuhashi, T. Nomura, J. Ten, R. Nakayama, T. Ohkuma, O. Maruyama, Y. Aoki, T. Saitoh, N. Amemiya, A. Ishiyama, N. Hayakawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The REBCO high-temperature superconducting cable, rated at 275 kV and 3 kA, was developed in the Materials and Power Applications of Coated Conductors project in 2008. The cable is expected to be put to practical use as a backbone power line in the future because the transmission capacity is about the same as the UHV overhead transmission line. Transmission loss is significantly reduced by using superconducting wires instead of Cu or Al conductors. Furukawa Electric plans a demonstration of the 275 kV high-temperature superconducting cable. The cable system consists of a 30-m cable, terminations, a cable joint, and a cooling system. The 30-m cable has already been manufactured and installed on a test site. In this demonstration, various electrical evaluations will be conducted, such as a long-term test under a current of 3 kA, and the test voltage will be determined assuming 30 years of insulation degradation.

Original languageEnglish
Article number6422354
JournalIEEE Transactions on Applied Superconductivity
Issue number3
Publication statusPublished - 2013


  • AC loss
  • coated conductor
  • high voltage
  • power cable

ASJC Scopus subject areas

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


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