Thermomechanical characteristics of 500-m HTS power cable

Author

Ichikawa, M. ; Kanegami, M. ; Okamoto, T. ; Akita, S. ; Yagi, M. ; Kimura, A.

Author_Institution

Central Res. Inst. of Electr. Power Ind., Kanagawa, Japan

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1771

Lastpage

1774

Abstract

A 500-m single-core high temperature superconducting (HTS) cable system has been constructed and tested in Yokosuka area, CRIEPI, by CRIEPI, The Furukawa Electric and Super-GM. In the actual power grid, the HTS cable distance extends sometimes several km. And has to be cooled down from about room temperature to liquid nitrogen temperature. As, the HTS cable is contracted and suffers mechanical stress. In the case of the long distance HTS cable, it remains a major development issue. The HTS cable constructed in this test system has an offset section for absorbing the thermal contraction. In this paper, we describe the validity of that offset section and the thermomechanical characteristics on the cooldown and warm-up test. The offset functioned successfully as designed.

Keywords

cryogenics; high-temperature superconductors; power cables; superconducting cables; thermal expansion; 500 m; CRIEPI; Furukawa Electric; HTS power cable; Super-GM; Yokosuka area; cooldown; cryogenics; liquid nitrogen temperature; mechanical stress; power grid; single-core high temperature superconducting power cable; thermal contraction; warm-up test; High temperature superconductors; Mechanical cables; Nitrogen; Power cables; Power grids; Stress; Superconducting cables; Superconducting transmission lines; System testing; Thermomechanical processes; Offset; superconducting cable; thermal contraction;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849284

Filename

1439995