Unit-1 SYNCHRONOUS GENERATOR
General features of constructions types of rotors salient features of salient and cylindrical rotors. Types of winding e.m.f. equation,winding factors and its importance. Armature reaction leakage reactance, synchronous reactance, synchronous impedance, voltage regulation by synchronous impedance method.Synchronising of alternators. Hunting effect of synchronous generator.
Unit-2 SYNCHRONOUS MOTOR
Constructional features of motor, Principle of operation. Phase diagrams for constant load at different excitation. Phaser diagram for varying load at constant excitation V-curves, synchronous condenser, Methods of starting the synchronous motors, application.
Unit-3 Production of rotating field by single phase and three phase, constructional feature slipring and squirrel cage motors comparision between squirrel cage wound rotor motors. Principles of action of three phase and single phase induction motors. Synchoronous speed, slip, inter-relationship between rotor copper loss, motor input and output and efficiencies. Torque, slip characteristics, stalling speed, condition for maximum torque, calculation of performance from the circle diagram, with the help of light run and locked rotor test. Methods of starting and speed control. Double cage motor.
Unit-4 Principles of operation of single phase induction motor. Methods of starting of the single phase motor. Explain the working of split phase and shaded pole induction motor. Universal motor. Several of direction of rotation of single phase motor. Descriptive study of three phase charge motor.
Books for reference :
1. Electrical engineering vol. by K.D.Shah and C.M.Amin.
2. Text book of Electrical engineering by S.L.Uppal.
3. Electrical technology by N.Cotton.
4. Electrical technology by B.L.Theraja.
Drawing & Drafting
<2.Electrical Machine II
>3.Digital Electronics &
Microporcessor
>4.Electronic Instrumentation & Control
>5.Electrical Power I
>6.Project Work
