Development of large-current-carrying superconducting cable for AC use

Author

Takahashi, Ryukichi ; Taniguchi, Tsukasa ; Yamaguchi, Kiyoshi ; Maki, Naoki

Author_Institution

Res. Lab., Hitachi Ltd., Ibaraki, Japan

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2894

Lastpage

2897

Abstract

Large-current-carrying superconducting cable with sub-micrometer NbTi filaments has been developed for the application of AC power devices such as superconducting rotating machines, SMES and fault current limiters. The quench current and the loss under AC operation have been measured. The results show that the superconducting cable has AC transport current of at least 2000 A_rms at 50 Hz in a 5T DC background magnetic field. The AC losses are measured to be 1.5×10³ W/m³ with 1000 A_rms transport current at 50 Hz, which are remarkably low

Keywords

losses; multifilamentary superconductors; niobium alloys; superconducting cables; superconducting materials; titanium alloys; 50 Hz; AC losses; AC power devices; AC transport current; NbTi; SMES; fault current limiters; large-current-carrying superconducting cable; loss under AC operation; quench current; sub-micrometer NbTi filaments; superconducting cable; superconducting rotating machines; Current measurement; Loss measurement; Magnetic field measurement; Niobium compounds; Rotating machines; Superconducting cables; Superconducting devices; Superconducting filaments and wires; Superconducting magnetic energy storage; Titanium compounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511480

Filename

511480