Constructional details: winding factors (Distributed and concentrated windings), EMF equation – Synchronous reactance – Armature reaction – Phasor diagrams, Synchronizing and parallel operation, Synchronizing torque, Change of excitation and mechanical input, Voltage regulation – EMF, MMF, ZPF methods, Two reaction theory –slip test.

Principle of operation – Torque equation, Operation on infinite bus bars - V and Inverted V curves, Power input and power developed equations, Starting methods – Current loci for constant power input, constant excitation and constant power developed, Hunting – natural frequency of oscillations – damper windings, synchronous condenser.

Constructional details– Principle of operation, Cogging and Crawling, Torque- Condition for maximum torque, Torque-Slip characteristics, Losses and efficiency, Load test - No load and blocked rotor tests - Equivalent circuit. Double cage induction motors, Induction generators, Synchronous induction motor- Doubly fed Induction Machines

Need for starting, Types of starters – DOL, Rotor resistance, Autotransformer and Star delta starters, Speed control: Voltage control, Frequency control and pole changing – Cascaded Connection, Concepts of V/f control and Slip power recovery scheme

Constructional details of single phase induction motor, Double field revolving theory and operation, Starting methods of single-phase induction motors – Capacitor start and capacitor run Induction Motor, No load and blocked rotor test - Equivalent circuit