Power supply system for an overhead contact line

摘要

This system for powering an overhead contact line, which includes a contact wire consisting of a plurality of conductive sections separated by insulating sections, includes power supply sub-stations, each conductive section being connected, on the side of an upstream end, to an upstream sub-station via an upstream controlled switch and, on the side of a downstream end, to a downstream sub-station via a downstream controlled switch. This system includes a detection device, associated with a conductive section, to be monitored, which includes a means for transmitting a characteristic signal to an upstream or downstream end of said conductive section and a receiving means able to receive the characteristic signal at the other end, the receiving means modifying the value of a state signal applied to a control circuit for actuating the opening of the downstream switch and/or of the upstream switch.

主权项

1. A system for powering an overhead contact line, said overhead contact line including at least one contact wire consisting of a plurality of conductive sections separated from each other by insulating sections, the system including a plurality of sub-stations for supplying electric power, each conductive section being connected, on the side of an upstream end of said conductive section, to an upstream sub-station via an upstream controlled switch and, on the side of a downstream end of said conductive section, to a downstream sub-station via a downstream controlled switch, each controlled switch being actuated by a corresponding control circuit,
wherein the system further includes a detection device associated with a conductive section to be monitored and including a transmission means to apply a characteristic signal to an end from among the upstream end and the downstream end of said conductive section and a receiving means to receive the characteristic signal at the other end of said conductive section, the receiving means modifying the value of a state signal and applying it at least to a circuit for controlling the actuation of the opening of the downstream switch and/or of the upstream switch, wherein the detection device of an associated conductive section includes an upstream transceiver module coupled with the upstream end and a downstream transceiver module coupled with the downstream end of said conductive section, the upstream transceiver module including an upstream transmission means to apply a characteristic signal to the upstream end, the downstream transceiver module including a downstream transmission means to apply a characteristic signal to the downstream end, the upstream transceiver module including an upstream receiving means to receive the characteristic signal of the downstream transceiver module and to modify the value of an upstream state signal applied to an upstream control circuit for actuating the opening of the upstream switch, the downstream transceiver module including a downstream receiving means to receive the characteristic signal of the upstream transceiver module and to modify the value of a downstream state signal applied to a downstream control circuit for actuating the opening of the downstream switch, and wherein the system further includes a controlled switch for circumventing a sub-station allowing, in the closed state, the connection together of two successive conductive sections, the state signal modified by at least one of the downstream or upstream transceiver modules associated with a first conductive section being transmitted to a control circuit of a switch for connecting the second conductive section to another sub-station.