Multiple-voltage power supply for railway vehicle
A railway vehicle, multi-voltage technology, used in the traction of railway vehicles, motor vehicles, AC induction motors, etc.
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[0071] The basic idea constituting the invention is as follows: it is assumed that the circuit diagram of the power supply circuit of a multi-voltage propulsion chain has to be reconfigured specifically for each supply voltage, and that said power supply circuit is modular and comprises a certain number of basic arms, said One or several of the arms are reused at each given supply voltage for providing the functions that must ideally be performed at said supply voltage. It should be noted that in this case the reused arm is either leftover and unnecessary or already has a defined function at said supply voltage.
[0072] The circuit diagram reconstructed in the case of the preferred embodiment of the present invention is shown in FIG. 1 .
[0073] The voltage is tapped on the suspension wire 1 in AC form (25 kV-50 Hz or 15 kV-16 Hz 2 / 3) or in DC form (3 kV or 1.5 kV).
[0074] The AC current is supplied by the suspension wire 1 to the power transformer. Said transformer comp...
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