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How does a diesel generator work?

Diesel generators operate on the principle of electromagnetic induction
The crankshaft of the diesel engine rotates and drives the generator, which has the dc generator and the AC generator. Dc generator is mainly composed of generator housing, magnetic pole core, magnetic field coil, armature and carbon brush. The alternator consists mainly of magnetic materials made of alternating permanent magnets (called rotors) and silicon cast iron made of armature coils (called stators) surrounded by series coils. The dc generator works differently from the ac generator, but it finally achieves the goal of generating electricity.
 
Diesel generator set is a kind of small power generation equipment. It refers to the power machinery that USES diesel as fuel and USES diesel engine as prime mover to drive generator to generate electricity. The whole set is generally composed of diesel engine, generator, control box, fuel tank, storage battery for starting and control, protection device, emergency cabinet and other components. The whole can be fixed on the base for positioning use or mounted on a trailer for mobile use. Diesel generator set is a non-continuous power generation equipment, if the continuous operation more than 12h, its output power will be lower than the rated power about 90%. If the user needs a long period of uninterrupted use, it is necessary to configure the common type of generator set, that is, the unit should take into account the power decline of the unit for a long time. The relationship between common power and standby power is as follows: for example, the user needs 100KW diesel generator set, and the standby power of the common 100KW diesel generator set is 100KW*110%=110KW. That is, the common power of the standby 100KW diesel generator set is 90KW. Although the power of diesel generator set is low, due to its small size, flexibility, portability, complete supporting facilities, easy to operate and maintain, it is widely used in mines, railways, field sites, road traffic maintenance, as well as factories, enterprises, hospitals and other departments, as a backup or temporary power supply.
Diesel generator is a kind of ac power supply equipment of self-provided power station. It is a kind of small independent power generation equipment, which USES internal combustion engine as power and drives synchronous alternator to generate electricity. By coaxial installation of the brushless synchronous alternator with the crankshaft of the diesel engine, the rotor of the generator can be driven by the rotation of the diesel engine. By using the principle of 'electromagnetic induction', the generator will output the induced electromotive force, and the current can be generated through the closed load loop.
Diesel generating set is made up of internal combustion engine and a combination of synchronous generators, internal combustion engine's maximum power limited by parts of mechanical load and thermal load, known as the rated power, rated power of the ac synchronous generator is refers to under the rated speed, the long-term continuous operation, the output power rating, usually the diesel engine output power rating and synchronous alternator output power rating, referred to as the matching ratio.
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