A Novel Quench Protection Technique for HTS Coils

Author

Wakuda, T. ; Ichiki, Y. ; Park, M.

Author_Institution

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

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4703404

Lastpage

4703404

Abstract

A new coil winding method to realize quench-back with an over-current pulse for HTS magnet protection is proposed. The feature of the inter-wire bridged parallel winding (IPW) is that a large inductive voltage and additional eletro-magnetic force on the coil are not generated when the quench-back trigger current is imposed on the coil. A quench-back test was performed with a DI-BSCCO tape with a self-field at around 78 K. The applicability of the quench-back technique for a HTS coil is discussed.

Keywords

bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; strontium compounds; superconducting coils; superconducting magnets; superconducting tapes; BiSr₂CaCu₂O₃; DI-BSCCO tape; HTS coils; HTS magnet protection; IPW; coil winding method; eletro-magnetic force; inductive voltage; interwire bridged parallel winding; over-current pulse; quench protection technique; quench-back trigger current; Coils; Heating; High temperature superconductors; Inductance; Superconducting magnets; Windings; Wires; High Tc superconductors (HTS); quench protection; quench-back; superconducting magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2180692

Filename

6111204