Has three phase distributed winding.Stator winding (armature winding) is connected to the ac supply system.The rotor has winding called field winding that carries direct current The field winding is normally fed from external dc source through slip rings and brushes.

Basic structure of 3-phase synchronous machine

Groups of synchronous machine

NSTime->Generating a 3 phase AC Voltage Require:Three sets of coils physically displaced from each other by120 electrical.