Electrical Machines II

Electrical Machines II - Engineering Subject

Electrical Machines II - EE3405 Machine 2 EM 2 4th Semester EEE Dept | 2021 Regulation | Anna University Engineering Subject Paper

UNIT I: a. Synchronous Generator

1. Synchronous Generator - Electrical Machines

2. Introduction - Synchronous Generator

3. Difference between D.C. Generator and Alternator

4. Advantages of Rotating Field Over Rotating Armature - Synchronous Generator

5. Stator - Construction, Diagram | Synchronous Generator

6. Rotor - Construction, Working Principle | Synchronous Generator

7. Excitation Systems - Synchronous Generator

8. Methods of Ventilation - Synchronous Generator

9. Working Principle - Synchronous Generator

10. Three Phase Winding in A.C. Machines - Synchronous Generator

11. Types of Armature Windings - Synchronous Generator

12. E.M.F. Equation of an Alternator - with Solved Example Problems | Synchronous Generator

13. Harmonics - Synchronous Generator

14. Effect of Harmonic Components on an Induced E.M.F. - Synchronous Generator

15. Two Marks Questions with Answers - Synchronous Generator | Electrical Machines

16. University Questions with Answers (Long Answered Questions) - Synchronous Generator | Electrical Machines

UNIT I: b. Armature Reaction and Regulation of Alternators

1. Armature Reaction and Regulation of Alternators

2. Introduction - Synchronous Generator or Alternators

3. Armature Resistance - Star, Delta | Synchronous Generator or Alternators

4. Armature Leakage Reactance - Synchronous Generator or Alternators

5. Armature Reaction - Synchronous Generator or Alternators

6. Concept of Synchronous Reactance and Impedance - Synchronous Generator or Alternators

7. Equivalent Circuit of an Alternator

8. Voltage Equation of an Alternator

9. Phasor Diagram of a Loaded Alternator

10. Voltage Regulation of an Alternator

11. Methods of Determining the Regulation - Synchronous Generator or Alternators

12. Synchronous Impedance Method or E.M.F. Method - Alternators

13. Short Circuit Ratio and Its Significance - Synchronous Generator or Alternators

14. Significance of SCR - Synchronous Generator or Alternators

15. M.M.F. Method of Determining Regulation - Synchronous Generator or Alternators

16. Potier's Triangle Method or Zero Power Factor (ZPF) Method - Synchronous Generator or Alternators

17. ASA Modification of M.M.F. Method - Synchronous Generator or Alternators

18. Comparison of Various Methods of Finding Regulation - Synchronous Generator or Alternators

19. Two Marks Questions with Answers - Armature Reaction and Regulation of Alternators | Electrical Machines

20. University Questions with Answers (Long Answered Questions) - Armature Reaction and Regulation of Alternators | Synchronous Generator | Electrical Machines

UNIT I: c. Synchronization and Parallel Operation of Alternators

1. Synchronization and Parallel Operation of Alternators

2. Necessary Conditions for Synchronization - Alternators

3. Synchronization of Alternators by Lamp Method

4. Synchronization of Three Phase Alternators by Lamps Bright and Dark Method

5. Synchronization by Synchroscope - Alternators

6. Synchronizing Current and Synchronizing Power - Alternators

7. Theory of Cylindrical Rotor Machines - Alternators

8. Operation at Constant Load with Variable Excitation - Alternators

9. Operation at Constant Excitation with Variable Load - Alternators

10. Synchronizing Power - Alternators

11. Blondel's Two Reaction Theory (Theory of Salient Pole Machine)

12. Determination of Xd and Xq using Slip Test - Alternators

13. Power Output of Salient Pole Alternator (Reluctance Power)

14. Parallel Operation of Two Alternators

15. Effect of Change in Excitation - Alternator on No Load

16. Alternator On Load

17. Effect of Change in Input or Mechanical Torque - Alternator

18. Alternators Connected to Infinite Bus Bar

19. Efficiency of Synchronous Machine

20. Short Circuit Transients - Synchronous Generator or Alternators

21. Capability Curves - Synchronous Generator or Alternator

22. Two Marks Questions with Answers - Synchronization and Parallel Operation of Alternators | Electrical Machines

23. University Questions with Answers (Long Answered Questions) - Synchronization and Parallel Operation of Alternators | Electrical Machines

UNIT II: Synchronous Motor

1. Synchronous Motor

2. Introduction - Synchronous Motor

3. Rotating Magnetic Field - Synchronous Motor

4. Construction of Three Phase Synchronous Motor

5. Principle of Working - Synchronous Motor

6. Why Synchronous Motor is Not Self Starting?

7. Procedure to Start a Synchronous Motor

8. Methods of Starting Synchronous Motor

9. Behaviour of Synchronous Motor on Loading

10. Analysis of Phasor Diagram - Synchronous Motor

11. Operation of Synchronous Motor at Constant Load Variable Excitation

12. V-Curves and Inverted V-Curves - Synchronous Motor

13. Expression for Back E.M.F. or Induced E.M.F. per phase in Synchronous Motor (Ebph)

14. Power Flow in Synchronous Motor

15. Alternative Expression for Power Developed by a Synchronous Motor

16. Two Reaction Theory for Synchronous Motor

17. Blondel Diagram[Constant Power Circle] - Synchronous Motor

18. Hunting in Synchronous Motor

19. Time Period of Oscillation - Synchronous Motor

20. Synchronous Condensers

21. Features and Applications of Synchronous Motor

22. Two Marks Questions with Answers - Synchronous Motor | Electrical Machines

23. University Questions with Answers (Long Answered Questions) - Synchronous Motor | Electrical Machines

UNIT III: a. Three Phase Induction Motor

1. Three Phase Induction Motor - Electrical Machines

2. Introduction - Three Phase Induction Motor | Electrical Machines

3. Rotating Magnetic Field (R.M.F.) - Production, Speed, Direction | Three Phase Induction Motor

4. Concept of Slip Rings and Brush Assembly - Three Phase Induction Motor

5. Construction of Three Phase Induction Motor - Stator, Rotor

6. Working Principle of Three Phase Induction Motor

7. Slip of Induction Motor

8. Effect of Slip on Rotor Parameters - Three Phase Induction Motor

9. Induction Motor as a Transformer

10. Torque Equation - Three Phase Induction Motor

11. Condition for Maximum Torque - Three Phase Induction Motor

12. Torque-Slip Characteristics - Three Phase Induction Motor

13. Torque Ratios - Three Phase Induction Motor

14. Speed - Torque Characteristics - Induction Motor

15. Effect of Change in Rotor Resistance on Torque - Three Phase Induction Motor

16. Effect of Change in Voltage and Frequency - Three Phase Induction Motor

17. Losses in Induction Motor

18. Power Flow in an Induction Motor

19. Equivalent Circuit of Induction Motor

20. Phasor Diagram of Induction Motor

21. Effect of Harmonics on Performance of 3 Phase induction Motor

22. Special Rotor Constructions - Three Phase Induction Motor

23. Induction Generators

24. Synchronous Induction Motor - Operation Working Principle, Performance Characteristics, Advantages, Disadvantages, Applications

25. Comparison of Synchronous and Induction Motor

26. Two Marks Questions with Answers - Three Phase Induction Motor | Electrical Machines

27. Two Marks Questions with Answers - Three Phase Induction Motor | Electrical Machines

28. University Questions with Answers (Long Answered Questions) - Three Phase Induction Motor | Electrical Machines

UNIT III: b. Circle Diagram

1. Circle Diagram - Three Phase Induction Motor | Electrical Machines

2. Introduction - Circle Diagram | Three Phase Induction Motor

3. Circle Diagram for a Series R- L Circuit

4. Circle Diagram of a 3 Phase Induction Motor

5. Obtaining Data to Plot Circle Diagram - Three Phase Induction Motor

6. Construction of the Circle Diagram - Induction Motor

7. Calculation of Equivalent Circuit Parameters - Three Phase Induction Motor

8. Load Test on Three Phase Induction Motor

9. Two Marks Questions with Answers - Circle Diagram - Three Phase Induction Motor | Electrical Machines

10. University Questions with Answers (Long Answered Question) - Circle Diagram - Three Phase Induction Motor | Electrical Machines

UNIT IV: Starting and Speed Control of Three Phase Induction Motor

1. Starting, Speed Control and Braking of Induction Motors - Electrical Machines

2. Introduction - Starting and Speed Control of Three Phase Induction Motor

3. Necessity of Starter - Three Phase Induction Motor

4. Types of Starters for Three Phase Induction Motor

5. Introduction to Speed Control of Induction Motor

6. Supply Frequency Control or V/f Control - Three Phase Induction Motor

7. Supply Voltage Control - Three Phase Induction Motor

8. Controlling Number of Poles - Three Phase Induction Motor

9. Adding Rheostats in Stator Circuit - Three Phase Induction Motor

10. Adding External Resistance in Rotor Circuit - Three Phase Induction Motor

11. Cascade Control - Rotor Circuit | Three Phase Induction Motor

12. Injecting Slip-Frequency E.M.F. into Rotor Circuit - Three Phase Induction Motor

13. Slip Power Recovery Scheme (Static Scherbius System) - Three Phase Induction Motor

14. Electric Braking of an Induction Motor

15. Two Marks Questions with Answers - Starting and Speed Control of Three Phase Induction Motor | Electrical Machines

16. University Questions with Answers (Long Answered Questions) - Starting and Speed Control of Three Phase Induction Motor | Electrical Machines

UNIT V: a. Single Phase Induction Motors

1. Single Phase Induction Motors - Electrical Machines

2. Introduction - Single Phase Induction Motors | Electrical Machines

3. Construction of Single Phase Induction Motors

4. Working Principle of Single Phase Induction Motors

5. Double Revolving Field Theory - Single Phase Induction Motors

6. Types of Single Phase Induction Motors

7. Split Phase Induction Motor - Circuit diagram, Phasor diagram, Operation Working Principle, Applications

8. Capacitor Start Induction Motors - Circuit, Phasor diagram, Operation Working Principle, Applications, Example Solved Problems | Single Phase Induction Motors

9. Shaded Pole Induction Motors - Circuit, Characteristics, Phasor diagram, Operation Working Principle, Construction, Applications

10. Equivalent Circuit of Single Phase Induction Motor

11. Conducting Tests on Single Phase Induction Motor

12. Speed Control of Single Phase Induction Motor

13. Two Marks Questions with Answers - Single Phase Induction Motors | Electrical Machines

14. University Questions with Answers (Long Answered Questions) - Single Phase Induction Motors | Electrical Machines

UNIT V: b. Special Machines

1. Special Machines - Electrical Machines

2. Introduction - Electrical Special Machines

3. Reluctance Motor - Construction, Working Principle, Torque-speed Characteristics, Advantages, Limitations

4. Hysteresis Motor - Construction, Working Principle, Torque-speed Characteristics, Advantages, Limitations

5. Single Phase Commutator Motors - Construction, Working Principle, Torque-speed Characteristics, Advantages, Limitations

6. Repulsion Motors - Construction, Working Principle, Characteristics

7. Linear Induction Motor - Construction, Working Principle, Applications, Solved Example Problems

8. Servomotors - Requirements, Types

9. A.C. Servomotor - Construction, Working Principle, Torque-speed Characteristics, Features, Applications

10. D.C. Servomotor - Construction, Working Principle, Torque-speed Characteristics, Applications

11. Comparison of Servomotors

12. Stepper Motors - Construction, Working Principle, Characteristics, Types, Applications

13. Introduction to Magnetic Levitation

14. Two Marks Questions with Answers - Special Machines | Electrical Machines

15. University Questions with Answers (Long Answered Questions) - Special Machines | Electrical Machines