Title :
Development of a forced-cooled superconducting coil for fusion applications
Author :
Shimada, M. ; Naganuma, M. ; Hamajima, T. ; Sawada, Y.
Author_Institution :
Toshiba Corp., Yokohama, Japan
Abstract :
A test coil was wound from a NbTi cable-in-conduit type conductor with 54 strands, and the total conductor length was 36 m. It was force-cooled with supercritical helium. The critical current of the test coil was 3.5 kA at 7 T. The test coil was installed in a backup coil which generated the magnetic field up to 7 T. The experimental results from the propagation velocity of the normal zone and the pressure rise when the force-cooled superconducting coil is quenched are described. The results of an analysis of the stability margin of the coil using computer simulation are reported
Keywords :
critical current density (superconductivity); electrical engineering computing; niobium alloys; stability; superconducting magnets; titanium alloys; 3.5 kA; 36 m; 7 T; NbTi; cable-in-conduit type conductor; computer simulation; critical current; forced-cooled superconducting coil; pressure rise; stability; Conductors; Critical current; Helium; Niobium compounds; Standby generators; Superconducting cables; Superconducting coils; Testing; Titanium compounds; Wounds;
Conference_Titel :
Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on
Conference_Location :
Knoxville, TN
DOI :
10.1109/FUSION.1989.102422
