1. AC Machines Fundamentals
Objectives, Introduction, General Terms of Rotating Machines, Electrical & Mechanical Degree, Frequency, Flux Per Pole, Generated EMF, AC Armature Winding, Distributed Winding, Concentric Windings, Chorded Windings, Armature and Field MMF, MMF of a Coil, MMF of One Phase of Distributed Winding, Harmonics, Slot Harmonic, Harmonics Minimization, Rotating Magnetic Fields, Effect of Harmonics on Generated EMF, Solved Numericals, Review Questions.
2. Polyphase Induction Motors
Objectives, Introduction, Constructional Features of Polyphase Induction Motor, Stator, Rotor, Basic Principle of Operation, Flux and MMF Waves, Induction Motor as a Transformer, Slip of Induction Motor, Rotor Current Frequency, Rotor Induced EMF, Rotor Induced Current and Power Factor, Phasor Diagram, Equivalent Circuits, Stator Equivalent Circuit, Rotor Equivalent Circuit, Torque Equation, Starting Torque, Condition for Maximum Starting Torque, Condition for Maximum Torque under Running Conditions, Magnitude of Maximum Torque under Running Conditions, Full Load, Starting and Maximum Torques, Torque Slip Characteristics, Motoring Mode, Power Output, Losses and Efficiency, No Load and Blocked Rotor Test, No Load Test, Blocked-Rotor Test or Short Circuit Test, Circle Diagram, Construction of Circle Diagram, Effect of Rotor Resistance, Starting of a Polyphase Induction Motor, Direct on-line Starting, Stator Resistance Starting, Autotransformer Starting, Star-Delta (Y–D) Starting, Rotor Resistance Starting, Speed Control of Induction Motors, Supply Voltage Control Method, Supply Frequency Control Method, Stator Pole Control Method, Stator Resistance Control Method, Rotor Resistance Control Method, Cascade Control Method, Injecting Ship Frequency Voltage Method, Braking, Electrical Braking, Cogging, Crawling, Double Cage Squirrel Cage Induction Motor, Induction Generator, Induction Regulator, Solved Numericals, Review Questions.
3. Single Phase Motors
Objectives, General Introduction, Part (A) Single Phase Induction Motor, Introduction, Construction, Principle, Double Field Revolving Theory, Starting of 1-f Induction Motor, Split-phase Induction Motor, Capacitor Start Induction Motor, Permanent Split Capacitor Run Motor, Capacitor Start Capacitor Run Motor, Shaded Pole Induction Motor, Torque-speed Characteristics of Different types of Single-Phase Induction Motors, Equivalent Circuit, Part (B) Special Machines, Introduction, Single Phase Synchronous Motors, Reluctance Motors, Hysteresis Motors, Series Motor, Universal Motor, Stepper Motor, Principle of Operation, Merits and Demerits of Stepper Motor, Characteristics of Stepper Motors, Solved Numericals, Review Questions.
4. Synchronous Generators (Alternators)
Objectives, Introduction, Construction of Synchronous Generator, Stator, Rotor, Excitation Systems, DC Excitation System, AC Excitation System, Brushless Excitation System, Static Excitation System, Principle of Synchronous Generator, EMF Equation, Armature Reaction, Unity Power Factor Load, Zero Lagging Power Factor Load, Zero Leading Power Factor Load, Parameters of Armature Winding, Equivalent Circuit of an Alternator, Theory of Salient Pole Generator, Phasor Diagrams, Phasor Diagram of Cylindrical Type Alternator, Phasor Diagram of Salient Pole Rotor Type Alternator, Power Developed, Power Developed in Cylindrical Rotor Type Alternator, Power Developed in Salient-pole Rotor Type Alternator, Voltage Regulation, Synchronous Impedance or EMF Method, Ampere Turn or MMF Method, Zero Power Factor Characteristic Method, ASA Modified form of MMF Method, Short Circuit Ratio (SCR), Synchronization, Three Lamp Method, Synchronoscope, Synchronizing Power and Synchronizing Torque Coefficients, Parallel Operation of Alternators, Determination of Xd and Xq, Solved Numericals, Review Questions.
5. Synchronous Motors
Objectives, Introduction, Types of Synchronous Motor, Non-Excited Synchronous Motors, DC-Excited Synchronous Motors, Construction, Principle of Operation, Phasor Diagram of a Cylindrical Rotor Synchronous Motor, Lagging Power Factor, Unity Power Factor, Leading Power Factor, Phasor Diagram of a Salient Pole Synchronous Motor, Lagging Power Factor, Unity Power Factor, Leading Power Factor, Power Developed, Power Factor Control of Synchronous Motor, Effect of Constant Load and Variable Excitation, Effect of Variable Load and Constant Excitation, V-Curves, Starting of Synchronous Motor, Pony Motor Starting, Damper Winding Starting, Applications, Synchronous Condenser, Synchronous Induction Motor, Comparison of Induction and Synchronous Motor, Synchronous Phase Modifier, Hunting and Damper Winding, Use of Flywheels, Damper Winding, Solved Numericals, Review Questions.
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