What is the difference between the excitation winding of ac motor and the armature winding?
Only the synchronous generator and the synchronous motor have excitation winding and armature winding. The general ac asynchronous motor is not excitation winding. Squirrel-cage asynchronous motor points and winding type two kinds big, the same stator winding structure, the squirrel-cage rotor cage bar, wound rotor rotor coil is an external device (can change the rotor impedance to realize variable speed). The "armature winding" is the "main power circuit" of the motor. Which power of the rotor and stator coil is "armature", needless to say, most stator coils are "armature winding".
Motor learning definition "armature" as the "main power circuit", as long as you think about the power of the stator loop or rotor circuit of large power, the big is the armature. The power is the voltage X current. Only the synchronous generator and the synchronous motor have excitation winding and armature winding. The general ac asynchronous motor is not excitation winding. Squirrel-cage asynchronous motor points and winding type two kinds big, the same stator winding structure, the squirrel-cage rotor cage bar, wound rotor rotor coil is an external device (can change the rotor impedance to realize variable speed). The "armature winding" is the "main power circuit" of the motor. Which power of the rotor and stator coil is "armature", needless to say, most stator coils are "armature winding".
Exciting winding is the excitation winding magnetic field, the armature winding is the ac electrical output winding, for dc excitation synchronous generator excitation winding is the generator rotor winding, armature winding of generator stator winding.
