The 795F AC Electric Drive (ED) truck features an electric drive train (1) in place of a conventional mechanical drive train (2). The electric drive train arrangement uses mechanical energy from the engine (3) to rotate a generator (4), whereas the engine rotates a torque converter (5) on mechanical drive (MD) trucks. The generator transmits power through high voltage cables to the inverter (6) which controls the rimpull, direction, and speed of the truck. The rimpull, direction, and speed of the truck is controlled by the transmission (7) on MD trucks.
The inverter changes and controls the incoming power, then drives an electric traction motor (8) coupled to a final drive (9) at each rear wheel station. The rear traction motors convert this electrical energy to mechanical energy to propel the truck.
MD trucks transfer power to the rear wheels through the differential (10) and final drives (9).