UNIT 1:
Flux linkage, Inductance and energy
Statically and Dynamically induced EMF
Laws governing magnetic circuits
Transformer as a magnetically coupled circuit
Properties of magnetic materials
UNIT 2:
1. Transformers Construction & Principle of operation
Equivalent circuit parameters
Losses & Transformer Testing
Auto transformer & Tap changing transformers & tertiary winding
All day efficiency & Sumpner’s test
8. Three phase transformers connections & Scott Connection
9. Phasing of transformer& parallel operation of three phase transformers
Per unit representation & Inrush current
Efficiency and voltage regulation
UNIT 3:
Energy in magnetic system
Field energy and co energy
Force and torque equations
Singly and multiply excited magnetic field systems
MMF of distributed windings
Magnetic fields in rotating machines
UNIT 4:
Characteristics of DC generators
Methods of excitation commutation
Interpoles compensating winding
UNIT 5:
Starting and speed control of DC motors
Speed Torque Characteristics of DC Motors
