| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable superconducting device wherein no Joule heat loss occurs in a plurality of mechanical permanent current switches connected in parallel, and a uniform current flows in the plurality of mechanical permanent current switches. SOLUTION: A superconducting coil 1, an exciting power source 2 supplying a current to the superconducting coil 1, mechanical permanent current switches 13-1...13-n, and second superconducting coils 14-1...14-n whose capacity is smaller than the superconducting coil 1, are respectively connected in series, with a plurality of serial bodies connected in parallel to the superconducting coil 1 provided. |
