In a diesel -electric multiple unit a diesel engine drives an electrical generator or an alternator which produces electrical energy.The generated current is fed to the traction motors on the wheels.This falls into the category of DMU(Diesel Multiple Units).Because of its high acceleration it is used for local runs i.e when the stations are closer.There are many countries which uses DMU services.Diesel Multiple Units are classified according to their transmission type: Diesel-Electric(DEMU),Diesel-Mechanical(DMMU),Diesel-Hydraulic(DHMU).
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