UNIT 1:
Constructional details: winding factors (Distributed and concentrated windings),
Two reaction theory –slip test
Synchronizing and parallel operation
Synchronizing torque, Change of excitation and mechanical input
Synchronous reactance – Armature reaction
Voltage regulation – EMF, MMF methods
UNIT 2:
Input and power developed equations
Hunting – damper windings
UNIT 3:
Slip-cogging and crawling, Torque
Constructional details– Principle of operation
Condition for maximum torque, Slip –torque characteristics
Condition for maximum torque, Slip –torque characteristics
Losses and efficiency, Load test
Double cage induction motors
Induction generators, Synchronous induction motor
UNIT 4:
Need for starting, Types of starters
Speed control: Voltage control
Slip power recovery scheme
UNIT 5:
Constructional details of single phase induction motor
Double field revolving theory and operation
Capacitor start Induction Motor
