Model cable tests for a 275 kV 3 kA HTS power cable

Shinichi Mukoyama*, Masashi Yagi, Tokui Yonemura, Tomoya Nomura, Noboru Fujiwara, Y. Ichikawa, Yuji Aoki, Takashi Saitoh, Naoyuki Amemiya, Atsushi Ishiyama, Naoki Hayakawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


High-temperature superconducting (HTS) cables are considered the next generation transmission line because they are compact, lightweight, and demonstrate large capacity and low loss compared to conventional cables. In particular, since a coated conductor (YBCO wire) provides high critical current, high magneticfield property, low AC loss, and low cost, it is expected to make the HTS cable more attractive than other superconducting wire. In Japan, 66/77 kV HTS cables have developed for about 20 years. We started developing 275 kV class HTS cables three years ago based on 66/77 kV HTS cables. The goal is a 275 kV 3 kA cable with a capacity of 1.5 GVA, the same capacity as a typical overhead transmission line, which serves as the backbone of Japanese power networks. The following technical developments will be carried out: high current and low AC loss cable conductors and high voltage insulation and low dielectric loss cables. Regarding high current and low AC loss cable conductors, 3-kA cables have been fabricated, and AC losses have been measured. We found that using thin YBCO wire reduced AC losses in experiments.

Original languageEnglish
Article number5740378
Pages (from-to)976-979
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number3 PART 2
Publication statusPublished - 2011 Jun
Externally publishedYes


  • 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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