| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple current limiting device which is fabricated by winding a superconducting cable provided with a low-temperature dielectric around an inner wall of a cryostat surrounding an iron core arranged in a cylindrical cavity. Ž<P>SOLUTION: The device specified for current limiting includes the superconducting cable SK arranged in the cryostat KR having an outer wall AW comprising two metallic tubes 1, 2 which are arranged on mutually concentric positions and between which vacuum insulation 3 is incorporated. The cryostat KR surrounds a free space FR through which a coolant is allowed to pass and in which the superconducting cable SK is arranged. The cryostat KR includes also an inner wall IW which surrounds a cylindrical cavity HR, similarly includes two metallic tubes 4, 5 which are arranged on mutually concentric positions and between which vacuum insulation 6 is incorporated, located within the outer wall AW, and separated from the outer wall AW through the free space FR. The superconducting cable SK including a superconducting conductor 8, a dielectric surrounding the superconducting conductor 8, and a superconducting screen 10 arranged on the dielectric is helically wound around the inner wall IW. An iron core 7 is arranged in the cylindrical cavity HR. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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