Current redistribution during quench in a SMES coil with separated conductor and dump shunt

Author

Bulc, Ales M. ; Hassenzahl, William V. ; Zeljeznov, Miljutin

Author_Institution

Res. & Dev., Bechtel Corp., San Francisco, CA, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2565

Lastpage

2568

Abstract

Some designs for large Superconducting Magnetic Energy Storage (SMES) coils have two or more parallel current carrying paths. During normal operation only the path with superconductor (conductor) carries current. During a quench, however, current transfers out of the conductor into an alternate current path (dump shunt). Timely current transfer must be assured to prevent damage to the coil. Current transfer is delayed due to local coil inductances if the conductor and shunt are separated. This paper describes a computer program LDELAY that calculates the transient current distribution. Results obtained for transient current redistribution in SMES/ETM and GEM magnets during a coil quench are presented

Keywords

current distribution; electrical engineering computing; superconducting magnet energy storage; superconducting magnets; GEM magnets; LDELAY program; SMES coil; SMES/ETM magnets; current redistribution; current transfer; dump shunt; local coil inductances; parallel current carrying paths; quench; separated conductor; transient current distribution; Conductors; Delay; Energy storage; Equations; Magnetic analysis; Magnetic fields; Samarium; Superconducting coils; Superconducting magnetic energy storage; Superconducting magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305802

Filename

305802