A generator is a mechanical device that converts mechanical energy into electrical energy. It is powered by turbines like hydro, steam, diesel, or other power mechanisms, which transform the energy from flowing water, air, fuel combustion, or nuclear fission into mechanical energy, which is then transmitted to the generator and converted into electrical energy.

Generators are widely used 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 form magnetic and electrical circuits that mutually induce electromagnetic fields using appropriate magnetic and conductive materials, to produce electromagnetic power, and achieve the goal of energy conversion.