Generators mounted under the vehicle (truck or trailer) can generate 220 and/or 380 V AC electric energy when the vehicle is parked and/or when driving and aims to meet the electric energy need of the system. The radiator is mounted separately rather than the diesel engine crankshaft. Fan energy required to cool down the radiator is supplied from the vehicle accumulator or generator accumulator.
Generators with water-cooled alternator
Today, especially small power (5-15 kW) generators use a water-cooled alternator. The windings of the water-cooled alternator are cooled down with a liquid flowing from the outer section. The noise level decreases during alternator operation.