| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting cable capable of increasing the proportion of the cross-sectional area of a coolant channel relative to the cable cross section and suppressing a temperature difference between a forward conductor and a return conductor.SOLUTION: There is provided a superconducting cable 10 comprising a heat-insulated pipe 20 housing a plurality of conductor cores 11 and 11 and a coolant pipe 15 therein. Each conductor core 11 includes a former 12, a superconducting conductor layer 13, and an insulating layer 14. The superconducting conductor layer 13 provided on the same conductor core 11 is energizable in the same direction along the longitudinal direction of the cable. A first coolant channel 16 is formed outside the coolant pipe 15 inside the heat-insulated pipe 20. A second coolant channel 17 is formed inside the coolant pipe 15. The first coolant channel 16 and the second coolant channel 17 can flow a coolant in the opposite direction along the longitudinal direction of the cable.SELECTED DRAWING: Figure 1 |
