Design of Electrical Machines
- Lecture Notes, Study Materials and Important questions answers

Subject : Design of Electrical Machines

INTRODUCTION

1. Major considerations in Electrical Machine Design - Answer (click here)
2. Materials for Electrical Machines - Answer (click here)
3. Window space factor Kw - Answer (click here)
4. Choice of Specific Electrical and Magnetic loadings - Answer (click here)
5. Heat flow - Answer (click here)
6. Temperature rise - Answer (click here)
7. Rating of machines - Answer (click here)
8. Standard specifications - Answer (click here)
9. Important Short Questions and Answers: Design of Electrical Machines - Introduction - Answer (click here)

DC MACHINES

1. Output Equations and Main Dimensions of DC Machine - Answer (click here)
2. Magnetic circuit calculations - Answer (click here)
3. Carter’s Coefficient - Answer (click here)
4. Net length of Iron - Answer (click here)
5. Real & Apparent flux densities - Answer (click here)
6. Selection of number of poles - Answer (click here)
7. Design of Armature - Answer (click here)
8. Design of commutator and brushes - Answer (click here)
9. Performance prediction using design values - Answer (click here)
10. Important Short Questions and Answers: Design of Electrical Machines - DC Machines - Answer (click here)

TRANSFORMERS

1. Design features of power and distribution type transformers - Answer (click here)
2. Output Equations and Main Dimensions- Design of Transformers - Answer (click here)
3. Window space factor Kw - Design of Transformers - Answer (click here)
4. Overall dimensions - Design of Transformers - Answer (click here)
5. Volt / turn equation - Design of Transformers - Answer (click here)
6. Core design - Design of Transformers - Answer (click here)
7. Core type transformer - Design of Transformers - Answer (click here)
8. No-load current of a transformer - Answer (click here)
9. Resistance and Reactance of Transformer - Answer (click here)
10. Temperature rise in Transformers - Answer (click here)
11. Design of Tank and Tubes - Transformers - Answer (click here)
12. Methods of cooling of Transformers - Answer (click here)
13. Important Short Questions and Answers: Design of Electrical Machines - Transformers - Answer (click here)

INDUCTION MOTORS

1. Design of Induction Motors - Answer (click here)
2. Output equation of Induction motor - Answer (click here)
3. Choice of Specific loadings - Design of Induction Motors - Answer (click here)
4. Choice of power factor and efficiency - Design of Induction Motors - Answer (click here)
5. Separation of D and L - Answer (click here)
6. Design of Stator - Induction Motors - Answer (click here)
7. Solved problems: Design of Stator - Induction Motors - Answer (click here)
8. Design of Rotor - Induction Motors - Answer (click here)
9. Solved problems: Design of Rotor - Induction Motors - Answer (click here)
10. Performance Evaluation - Design of Induction Motors - Answer (click here)
11. No load current - Design of Induction Motors - Answer (click here)
12. Magnetic leakage calculations - Answer (click here)
13. Leakage reactance of polyphase machines - Design of Induction Motors - Answer (click here)
14. Magnetizing current - Design of Induction Motors - Answer (click here)
15. Short circuit current, Circle diagram, Operating characteristics - Design of Induction Motors - Answer (click here)
16. Important Short Questions and Answers: Design of Electrical Machines - Induction Motors - Answer (click here)

SYNCHRONOUS MACHINES

1. Types and Construction of synchronous machines - Answer (click here)
2. Relative dimensions of Turbo and water wheel alternators - Design of Synchronous Machines - Answer (click here)
3. Specifications of the synchronous machine - Answer (click here)
4. Main Dimensions and Output equations - Design of Synchronous Machines - Answer (click here)
5. Choice of Specific loadings - Design of Synchronous Machines - Answer (click here)
6. Design of salient pole machines - Answer (click here)
7. Separation of D and L - Design of Synchronous Machines - Answer (click here)
8. Short circuit ratio - Design of Synchronous Machines - Answer (click here)
9. Length of the air gap - Design of Synchronous Machines - Answer (click here)
10. Design of stator winding - Design of Synchronous Machines - Answer (click here)
11. Solved Numerical Problems - Design of Synchronous Machines - Answer (click here)
12. Design of the field System: Salient pole Alternator - Design of Synchronous Machines - Answer (click here)
13. Design of field winding for salient pole Alternator - Answer (click here)
14. Numerical Problems on Field System Design of Salient pole machines - Answer (click here)
15. Design of the field System: Non Salient pole Alternator - Answer (click here)
16. Shape of pole face - Design of Synchronous Machines - Answer (click here)
17. Armature design and parameters - Design of Synchronous Machines - Answer (click here)
18. Design of rotor - Design of Synchronous Machines - Answer (click here)
19. Design of damper winding - Design of Synchronous Machines - Answer (click here)
20. Important Short Questions and Answers: Design of Electrical Machines - Synchronous Machines - Answer (click here)