The term, "stator" is derived from the word stationary. The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles.
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Stator Vs. Rotor
The stator is the stationary part of
the machine. whereas, the rotor is the rotating part of the machine.
The stator core, stator winding and
the outer frame are the three parts of the stator. whereas, the rotor core and
field winding are the two parts of the rotor.
The three-phase supply is given to
the winding of the stator. whereas, The rotor is excited by the DC supply.
The winding arrangement of the
stator is more complex. whereas, the rotor winding arrangement is Easy.
The size of the stator winding is
large for carrying the heavy current. Whereas, the rotor winding size small.
The stator winding is highly
insulated because high voltage induces in it. Whereas, the rotor winding
insulation has low.
The friction loss of the stator is
high. whereas, the friction loss of the rotor is low.
The cooling system of the stator is easy. whereas, the rotor cooling system is difficult.
The cooling system of the stator is easy. whereas, the rotor cooling system is difficult.