A generator is a mechanical device that converts mechanical energy into electrical energy. It is driven by turbines such as water turbines, steam turbines, diesel engines, or other power mechanisms. These turbines convert the energy from flowing water, air currents, fuel combustion, or nuclear fission into mechanical energy, which is then transmitted to the generator. The generator subsequently converts this mechanical energy into electrical energy.

Generators find extensive applications in industrial and agricultural production, technology, and daily life. There are many types of generators, but their working principles are all based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general principles of their construction are: to form magnetic and electrical circuits through appropriate magnetic and conductive materials that induce electromagnetic power in each other, thereby achieving the purpose of energy conversion.