Main parts of alternator are the stator and a DC field winding on the rotor.
Stator is a stationary part of machine and it is made by sheet steel lamination having slots on its inner periphery. Windings are placed in these slots and serves as the armature winding of the alternator.THESE ARMATURE windings are connected in star connection.stator core having a generally cylindrical shape.
Rotor carries a field winding which is supplied by DC current through two slip rings by a DC source.That source is called exciter. Small DC shunt or compound generator is act as exciter. Based on the rotor shape rotor is classified into two types .They are given bellow
Salient (projecting) pole type.
Non salient (cylindrical) pole type.