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Motor Generator Set (MG set)


Motor Generator Set are a combination of an electrical generator and an engine mounted together to form a single piece of equipment. Motor generator set is also referred to as a genset, or more commonly, a generator.

Motor generator sets are used throughout industry to provide electrical power on demand. Typical applications include emergency power backup applications for the medical industry, remote sites, or any industrial or commercial application requiring an independent or remote power source. Motor generator sets are available in most standard power delivery configurations. Power plant installations include gas turbines, diesel and gas reciprocating engines. Motor generator sets may produce alternating current power, or direct current.

Motor generator set can be customized with a wide range of options. These options include a fuel tank, a engine speed regulator and a generator voltage regulator, simple monitoring electrical devices to more advanced digital controls, wireless communication, automatic starting capabilities, and more.


A motor and one or more generators, with their shafts mechanically coupled, used to convert an available power source to another desired frequency or voltage. The motor of the set is selected to operate from the available power supply; the generators are designed to provide the desired output.

The principal advantage of a motor-generator set over other conversion systems is the flexibility offered by the use of separate machines for each function. Since a double energy conversion is involved, electrical to mechanical and back to electrical, the efficiency is lower than in most other conversion methods

Selecting motor generator set for electrical power generation does require a through understanding of power requirements, installation requirements, regulations, and cost attributes. For AC electrical generator sets, specifications will include AC power rating, and for DC specifications will include DC power, expressed in watts (W). Engine-generators are available in a wide range of power ratings. These include small portable units which can supply several hundred watts of power, up to million watt stationary or trailer-mounted units.