Generator windings, 3-phase generators use 3-phase windings (i.e. 3 sets of windings) and 1-phase generators use 1-phase windings. ?
This is related to the electrical system. The electricity produced on the regional electricity network is three-phase, because the electricity network is three-phase. For example, the electricity used in factories is primarily single-phase, because the factory's electricity often comes from one of three 380 V phases. ?
Basically, large generators are sent to the power grid and are three-phase, while the small ones are mainly single-phase for internal use in factories. The generator is designed to have several phases, mainly related to the application.
A wind turbine is an electrical device that converts wind energy into mechanical work, which causes the rotor to rotate and ultimately produces alternating current. In a wayGenerally, wind energy is also solar energy, so we can also say that a wind turbine is a thermal energy generator that uses the sun as the heat source and the atmosphere as the working fluid.
No, due to conversion efficiency issues. Electric motors can only convert less than 50% (actually less) of electrical energy into mechanical energy. And then it drives the generator, which can only convert less than 50% of the mechanical energy (usually less, often around 20%) into electrical energy. Most of it will be converted into sound energy and thermal energy and dissipated.
So a 220V2000W motor driving a generator can generate up to 220V500W, which is already very good, but in fact it will be fundamentally smaller.