| 摘要 |
PURPOSE:To contrive to improve the workability of manufacturing coils and reduce the power loss by a method wherein a plurality of superconductive coils are arranged in a circular form, a refrigerating device is connected by piping to a vacuum container containing the coil, and a plurality of AC-DC converters and transformers are provided in the neighborhood of the coil. CONSTITUTION:A plurality of the superconductive coils 4 of circular form and D-form, etc. are arranged in toroidal form, and the transformers 2, AC-DC converters 3, and refrigerating devices 6 of the same number as that of the coils 4 are arranged at equal intervals on the circumference of the toroidal coil. A power line 1 is laid in circular form so as to surround power source devices in order to give and take the power from and to the power source devices. The coil 4 is placed underground, and the middle point of the coil 4 is connected to the container 5 and put in earth. Besides, the device 6 should be at a position as close as possible to the coil 4 and placed underground. The transformers 2 and the converters 3 are placed on the earth from the viewpoint of maintenance, inspection, cooling etc. Thus, the manufacture of the device is facilitated and enabled to realize in respect of the processing in factories and on the spot and the transportation. In addition, the power loss in a power cable and the heat loss in the refrigerating device can be reduced. |
