| 摘要 |
A plant for tansmitting electric power to railway vehicles (4) comprises a contact line (3) transmitting an alternating voltage and adapted to be in contact with the contact member (16) of the vehicle for feeding current to the latter. The contact line has an interruption (7) at at least one location along the railway with two separated contact line portions located on both sides thereof and an elongated element (8) bridging the distance between these portions. A resonance circuit (11) is connected to the element, which has portions (9, 10) overlapping the respective contact line portion and is adapted to be in contact with the contact member of the vehicle at the same time as with the respective contact line portion for applying a voltage to the element and charging the resonance circuit. The resonance circuit is discharged according to a damped harmonic oscillation for demagnetizing the transformer of the vehicle when the contact member of the vehicle leaves the contact with a contact line portion and is only in contact with the element. |
