Title :
Fast switching characteristics of magnetic persistent current switch for SMES
Author :
Sadakata, N. ; Uchiyama, K. ; Goto, K. ; Saito, T. ; Kohno, O. ; Kouno, Y. ; Matsukawa, M. ; Noto, K. ; Honma, H. ; Tatsuki, T.
Author_Institution :
Fujikura Ltd., Tokyo, Japan
fDate :
6/1/1995 12:00:00 AM
Abstract :
Cu-Ni matrix Cu-Nb multi-core composite wire for a magnetic persistent current switch was developed for SMES. Switching characteristics of small PCS coils up to 300 A were investigated simulating the practical switching operation. Fast current decrease was observed at the critical magnetic field for the transport current, however, turn-on recovery was not reversible after decreasing the field. An original procedure was devised and fast turn-on operation was achieved.<>
Keywords :
copper alloys; nickel alloys; niobium alloys; superconducting coils; superconducting magnet energy storage; superconducting switches; switching; Cu-Ni matrix Cu-Nb multi-core composite wire; CuNb-CuNi; SMES; critical magnetic field; fast current decrease; fast switching characteristics; magnetic persistent current switch; superconducting coils; transport current; turn-on recovery; Conductivity; Magnetic switching; Persistent currents; Personal communication networks; Samarium; Superconducting coils; Superconducting magnetic energy storage; Superconducting magnets; Switches; Wire;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
