Dependence of quench current level of superconducting wire and cable on the winding tension

Author

Shimizu, H. ; Shiroki, T. ; Yokomizu, Y. ; Matsumura, T.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1129

Lastpage

1132

Abstract

Mechanical instabilities in an AC Nb-Ti superconducting wire and cable are experimentally investigated. The quench current levels of the sample conductors were measured for different winding tensions and current increase rates. We have developed a new type of experimental bobbin to apply the tension uniformly and to adjust it to the specified value from the outside of the cryostat. It is found that the influence of the mechanical instabilities on the quench current level decreases with an increase in the winding tension and/or the current increase rate.

Keywords

cryostats; mechanical stability; niobium alloys; superconducting cables; titanium alloys; AC Nb-Ti superconducting cable; AC Nb-Ti superconducting wire; Nb-Ti; bobbin; cryostat; current increase rates; mechanical instabilities; quench current level; superconducting cable; superconducting wire; winding tension; Conductors; Current measurement; Degradation; Electromagnetic forces; Epoxy resins; Shafts; Superconducting cables; Superconducting filaments and wires; Temperature; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783497

Filename

783497