A generator is a mechanical device that converts mechanical energy into electrical energy. It is driven by a turbine, steam turbine, diesel engine, or other power mechanical, which converts the energy from water flow, air flow, fuel combustion, or nuclear fission into mechanical energy, which is then transmitted to the generator and converted into electrical energy.

Generators have wide applications in industrial and agricultural production, technology, and daily life. There are many types of generators, but their working principle is based on the law of electromagnetic induction and the law of electromagnetic force. Therefore, the general principle of their construction is to use appropriate magnetic and conductive materials to form magnetic and electrical circuits that interact through electromagnetic induction, to produce electromagnetic power, and achieve the purpose of energy conversion.