I do not know.
The train has to have an inverter anyways to vary its rpm, and I assume that the motor runs on less than 15 kV anyways. So it could conceivably be done without a separate DC-DC step-up converter, but I wouldn't know for sure.
The train has to have an inverter anyways to vary its rpm, and I assume that the motor runs on less than 15 kV anyways. So it could conceivably be done without a separate DC-DC step-up converter, but I wouldn't know for sure.
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