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The development of a 66 kilovolt-class high-critical temperature superconducting (HTS) cable.

[In Japanese. / En japonais.]

Author(s) : MUKOYAMA S., TSUBOUCHI H., MIYOSHI K., et al.

Type of article: Article

Summary

Tokyo Power Company and the Furukawa Electric Co., Ltd are advancing development in the base, element and system aiming at the achievement of a compact high-critical temperature superconducting cable of the 66 kilovolt class. The HTS wire used for the HTS cable must have a high critical current density, be flexible and easy to make in long lengths. The most advanced wire is bismuth 2223 silver sheath multi-filamentary wire judging from these requirements. The authors developed a bismuth 2223 silver sheath wire that has a high critical current density higher than 20 kiloamperes/cm2 when long in length. Moreover, a wire with a filament twist, aiming at alternating-current loss reduction, was developed and a decrease in alternating-current loss was confirmed. They manufactured at 66 kilovolts class-2 kiloamperes(peak) prototype cable 5 meters long, and succeeded in making a load test. This prototype cable consisted of one HTS conductor that had electric insulation, a thermal insulated tube and two terminals that connected to both ends to do the load test.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1999-2081
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 33 - n. 3
  • Publication date: 1998/03
  • Document available for consultation in the library of the IIR headquarters only.

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