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That's essentially what conventional TBMs use - high voltage extension cables to power electric VFD-driven motors. If you use batteries, you can drive them out
by rory096 8y ago
That's essentially what conventional TBMs use - high voltage extension cables to power electric VFD-driven motors. If you use batteries, you can drive them out of the tunnel and recharge anywhere.
- beambot 8y agoWhich also means that passenger loading and unloading can happen outside, thus substantially reducing station costs too.