December 11, 2021

3Φ AC synchronous motor Revolving armature type Revolving field type Conventional 3Φ Synchronous Motor : (Revolving Field Type) Stator : Stator is made up of silicon steel stampings. Stator slots carry a balanced 3Φ armature winding, wound for a specified even number of poles. The ends of the armature windings are connected to the terminals

Merits of SRM Construction is simple and robust. Rotor carries no windings, no sliprings, no brushes, less maintenance. There is no permanent magnets. Ventilating system is simpler as losses takes place mostly in the stator: Power semi conductor switching circuitry is simpler No shoot through fault likely to happen power short circuits. Developed torque doesn’t