Title :
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
fDate :
7/1/1994 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
