| 摘要 |
PURPOSE:To surely supply and regenerate electric power, by providing two sections between neighboring substations so that the sections are insulated from electric vehicle feeders, and by inserting switching elements between electric lines which sandwich the two sections, and by opening or closing the switching elements is response to the output signals of voltage detectors. CONSTITUTION:When a voltage acts to one section 2a because of the presence of an electric vehicle, a thyristor breaker 5a is turned on by the action of a voltage relay 8a but another thyristor breaker 5b remains off. When a voltage acts to another section 2b as a result of the movement of the electric vehicle, the breaker 5b is turned on but the other breaker 5a is turned off. Since both substations SS1, SS2 are not shortcircuited to each other through an electric vehicle feeder 1a, a diode 3a, the breaker 5a, a diode 4b, electric vehicle feeders 1b, 1c, a diode 6a, the breaker 5b, a diode 7b and an electric vehicle feeder 1d, no electrical current flows in even if the output voltage of both the substations differ from each other. As a result, electric power is surely supplied and regenerated, and the electric insulation of the substations from each other is improved to enhance safety. |
