Oshkosk Using Copper Motor Rotor Technology For Military
Substituting copper for aluminium in the rotor conductor bars will generally increase motor efficiency due to copper's better electrical conductivity, but redesigning the motor around copper's strengths provides an opportunity to achieve even greater improvements. The result: an induction motor with the highest power density possible today.
Four 140hp / 104kW electric motors power the HEMTT-A3 severe-duty trucks, which utilises a 400hp / 298kW diesel engine to provide electricity to the 480V motors.
[Source: Green Car Congress]
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