Development of high temperature superconducting power cable prototype system

Author

Shibata, T. ; Watanabe, M. ; Suzawa, C. ; Isojima, S. ; Fujikami, J. ; Sato, K. ; Ishii, H. ; Honjo, S. ; Iwata, Y.

Author_Institution

Sumitomo Electr. Ind. Ltd., Osaka, Japan

Volume

14

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

182

Lastpage

187

Abstract

A 30 m prototype of 100 MVA (66 kV-1 kA) high temperature superconducting (HTSC) power cable system was developed for the first time ever. This system consists of a 30 m long single phase cable, terminations, a 66 kV XLPE cable for a current loop, and a closed cycle liquid nitrogen cooling system. After being cooled down, 40 kV-1 kA AC was successfully applied in sub-cooled liquid nitrogen (72 K, 1.2 kg/cm ²_abs) regardless of mechanical stress, such as handling in the factory, transportation, laying and the axial force due to contraction during cooling down

Keywords

cooling; electric connectors; high-temperature superconductors; power cables; superconducting cables; 1 kA; 100 MVA; 30 m; 40 kV; 66 kV; 72 K; XLPE cable; closed cycle liquid nitrogen cooling system; high-temperature superconducting power cable; mechanical stress; single-phase cable development; terminations; Conductors; Critical current; High temperature superconductors; Magnetic hysteresis; Magnetic shielding; Mechanical cables; Power cables; Prototypes; Superconducting cables; Superconducting magnets;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.736712

Filename

736712