| 摘要 |
PURPOSE:To provide direct current power cable lines of which the transmission capacitance is increased by reducing the conductor ohmic loss which is the only transmission loss in the direct current transmission. CONSTITUTION:Three lines of direct current power cables 1A, 1B, and 1C having the same structure are arranged in parallel. By connecting one line of them as a one-pole transmission cable and the other two as the other one-pole transmission cable in parallel, the direct current power cable lines are in operation. |
