Japan's first operation of high-temperature superconducting cable systems in live grids (high-temperature superconducting cable demonstration project)

Masayoshi Ohya*, Hiroyasu Yumura, Michihiko Watanabe, Yuichi Ashibe, Hiroshi Takigawa, Hideki Ito, Tadahiko Minamino, Takashi Nishimura, Takato Masuda, Shoichi Honjo, Tomoo Mimura, Yutaka Kito, Yu Noguchi

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

24 Citations (Scopus)

Abstract

Sumitomo Electric Industries, Ltd. has taken part in the high-temperature superconducting (HTS) cable demonstration project, began in 2007, to verify the reliability and operational stability of HTS cable systems in actual power grids. The company has developed 66-kV-, 200-MVA-class HTS cables, terminations and joints, and built a 30-meter cable system using them to conduct verification tests before the demonstration in Tokyo Electric Power Company's Asahi Substation in Yokohama. At present, Phase I of the rating validation test has been completed with favorable results, verifying the soundness of the 30-m cable system. A 30-day long-term operation test was also completed successfully. Going forward, Sumitomo Electric will conduct heat cycle and marginal performance tests with the system in Phase II and Phase III.

Original languageEnglish
Pages (from-to)84-93
Number of pages10
JournalSEI Technical Review
Issue number70
Publication statusPublished - 2010 Apr
Externally publishedYes

Keywords

  • High temperature superconductors
  • Power cable installation
  • Superconducting cables

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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