| 摘要 |
PURPOSE:To maintain a power system stably while reducing construction cost and running cost by buffering the storage of dump power and sudden load fluctuation. CONSTITUTION:A first superconducting cable 2 is arranged in parallel with power cables 1 for power transmission, a second superconducting cable 3 wound in a coil shape so as to include these power cables 1 and superconducting cable 2 is installed, and a cylindrical protective case 4 is mounted outside the cable 3, thus constituting a power transmission cable. Electric insulating layers 5 are set up on the outer circumferential sections of the power cables 1 and the first super conducting cable 2 respectively while a heat-insulating layer 6 is fitted inside the protective case 4. The inside of the protective case 4 is filled with liquid nitrogen 7, and the power cables 1 and the superconducting cables 2, 3 are cooled. The power cables 1 transmitting power and the superconducting cables 2, 3, in which power is stored, are unified in the power transport cable, and power can be stored only by laying. |
