Quench protection of very large superconducting magnets

Author

Dudarev, A.V. ; Keilin, V.E. ; Kuroedov, Yu.D. ; Konjukhov, A.A. ; Vysotsky, V.S.

Author_Institution

Kurchatov Inst., Moscow, Russia

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

226

Lastpage

229

Abstract

The feasibility of utilization of cold switches for quench protection of very large superconducting magnets (e.g., for SMES) is considered. The scheme of quench protection of large SMES is suggested. The necessary number of sections can be easily evaluated. Destructive superconducting switches seem to be the best solution. The switch has to be properly designed to avoid arcing and to offer a possibility to change the destructive elements in a reasonable time without warming up large portions of the winding. A suggestion is also made to make use of the temperature dependence of the electrical resistance of the dump resistor. A proper choice of its mass can result in 25 percent decrease of a quench load.<>

Keywords

protection; superconducting magnet energy storage; superconducting switches; SMES; cold switches; destructive superconducting switches; dump resistor; electrical resistance; quench protection; superconducting magnet energy storage; very large superconducting magnets; Conductors; Coolants; Electric resistance; Protection; Samarium; Stress; Superconducting magnetic energy storage; Superconducting magnets; Switches; Temperature distribution;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402530

Filename

402530