1. INTRODUCTION: General equation of inducted emf. Effect of distribution,chording and skewing on induced emf. Armature emf. Armature and field mmfs-Effect of power factor and magnitudes of current on armature mmf.Harmonics caused by winding,distribution and saturation. Rotating fields.

2. INDUCTION MOTORS: Construction, basic principles, flux and mmf waves, induction motor as a transformer. Equivalent circuits. Circle diagram. Calculation of performance. Torque-slip curves. Effect of rotor resistance. Cogging crawling. Starting, speed control and braking of induction motors. Losses and efficiency. Testing Induction Generator. Induction regulator. Single-phase induction motor. Revolving field theory. Starting methods.

3. SYNCHRONOUS MACHINES: Construction.Basic principles. Flux and EMF waves. Theory of cylindrical rotor and salient pole machines. Two-reactance theory. O.C. and S.C. and zero power factor characteristics. Potier triangle and ASA method of finding regulation. V-curves, O corves and power angle characteristics. Parallel operation. Sychronizing. Hunting and its prevention. Starting of synchronous motors. Single phase synchronous motor. Single-phase series and repulsion motor.

RECOMMENDED BOOKS

1. Dr. P.S. Bimbhra-Electrical Machinery

2. H Cotton-Advance Electrical Technologies

3. M.G.Say-Performance and Design of AC machines

4. I J Nagrath and D P Kothari:electircal machines.