H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 6/00 (2006.01) F17C 13/00 (2006.01) H01F 6/02 (2006.01)
Patent
CA 2063528
There is disclosed a coil structure which is rapidly energized or excited, and reduces the generation of heat in a coil container by eddy current due to a dynamic disturbance such as vibration and a magnetic field fluctuation, thereby suppressing the generation of a quench. The coil container is constituted by a low- resistivity material, and a high-resistivity portion is provided at at least one portion of the coil container in the direction of the periphery of the coil container. The high-resistivity portion is provided at a position where a vibration displacement is small or a magnetic field fluctuation is small. When the coil structure is to be energized or excited, the eddy current produced in the direction of the periphery of the superconducting- coil container can be reduced at the high-resistivity portion, and when the dynamic disturbance develops, the generation of heat by the eddy current is suppressed by the low-resistivity material.
Fukumoto Hideshi
Goto Fumihiko
Kameoka Yoko
Kasahara Naoki
Sakamoto Shigeru
Hitachi Ltd.
Hitachi Engineering Co. Ltd.
Kirby Eades Gale Baker
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