Development of a 10 kA-class high-Tc superconducting bus bar

Author

Ando, T. ; Isono, T. ; Tsuji, H. ; Kato, T. ; Hikata, T. ; Sato, K.

Author_Institution

Naka Fusion Res. Establ., JAERI, Ibaraki, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

817

Lastpage

820

Abstract

In order to investigate the applicability of high-Tc materials for bus lines between magnets and power supplies in a fusion reactor, a 10 kA-class bus bar has been fabricated and tested at 77 K. The bus bar consists of 10 conductor units which are prepared by stacking 250 Bi-2223 superconductor tapes which are made by a powder-in-tube method. The 10 conductor units are installed into the grooves on a decagonal FRP structure and the current for each unit conductor is carried in the opposite direction for the current of neighboring unit conductor to reduce the self magnetic field. The bus bar was immersed in liquid nitrogen and was successfully operated up to 10.3 kA with the alternative go-and-return structure.<>

Keywords

busbars; power cable testing; power supplies to apparatus; superconducting cables; superconducting magnets; 10 kA; 10.3 kA; 77 K; decagonal FRP structure; fabrication; fusion reactor; go-and-return structure; high-Tc superconducting busbar; magnets; powder-in-tube method; power supplies; self magnetic field; superconductor tapes; testing; Conducting materials; Conductors; Fusion reactors; Magnetic materials; Materials testing; Power supplies; Stacking; Superconducting films; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402673

Filename

402673