hello! can anyone explain to me how a 3 speeds table fan
work? what are the factors that are controlling the speed of
a normal table fan? Is it by varying the voltage or changing
the magnetic field? (maybe can explain in the way that how a table fan being controlled at off mode,1st speed, 2nd speed, and 3rd speed?) would appreciate your reply thx in advance.
The table fan is a single phase motor and it's coil consist three stage of winding, they are;Helping,Mains and the Regulators winding. the regulator winding is used to regulate the speed of the motor.