| 摘要 |
PURPOSE:To reduce a leakage current reduced, by laying a feeder to each unit of the rails that have been divided by insulating sections provided to the rails, and connecting thyristor apparatuses between the feeders and substations. CONSTITUTION:Feeders 7a1 and 7a2 and feeders 7b1 and 7b2 are connected respectively to the central parts of the rails 3 that have been divided by the insulating sections 5a-5c and the thyristor apparatuses 6a1, 6b1 and the thyristor apparatuses 6a2, 6b2 are respectively connected via the feeders to the substations 1a and 1b respectively. If an electric car 4 is on the side of the insulating section 5b away from the intermediate point between the insulating sections 5a, 5b, the electric currents from the substations 1a, 1b are fed via the electric-car lines 2a, 2b, and in this case, the thyristor apparatuses 6b1, 6b2 of the rails 3b1, 3b2 on which there is no electric car become in the stopped state, and the electric current in the rail 3a2 returns via the thyristor apparatuses 6a1, 6a2 to the substations 1a, 1b. Therefore the leakage current from the rails caused by the electric car 4 would be only from the rails 3a1, 3a2 so that it will be reduced. |
