The offered diesel generator set is a kind of small power generation equipment, which refers to power machinery that uses diesel fuel as fuel and diesel engine as prime mover to drive generator to generate electricity. It is a small independent power generation equipment that uses an internal combustion engine as power to drive a synchronous alternator to generate electricity. Modern diesel generator sets are composed of diesel engines, three-phase AC brushless synchronous generators, control boxes (screens), cooling water tanks, couplings, fuel tanks, mufflers and public bases and other components to form a rigid whole. The diesel generator set is made for use in the various places.