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Full Description
This book offers a clear and concise introduction to the theory and applications of alternating current (AC) electrical machines. It explores electromechanical systems, focusing on basics concepts of electromagnetic fields and magnetic materials, delving into the governing laws and forces of magnetism. The text then transitions to a comprehensive examination of electromechanical AC machines, including AC generators, transformers, synchronous and induction machines, with particular attention to their operation, analysis, and design. It includes a wealth of solved examples that elucidate complex principles and unsolved exercises to strengthen problem-solving prowess.
Features:
Offers in-depth information and study about asynchronous and synchronous machines.
Presents complex electromechanical principles in an easy-to-follow manner.
Clarifies important ideas in electromechanics by offering several solved and unsolved examples.
Explores experimental manual that provides hands-on advice for laboratory practice. .
Over 150 practical examples, solved problems, and exercises to reinforce learning.
This book is designed for undergraduate and beginning graduate students in electrical engineering, renewable energy engineering, and related disciplines. It is also a practical reference for professionals working in the power systems, automation, and energy sectors.
Contents
Chapter 1. Introduction to Electrical Machines. 1.1 Introduction. 1.2 Magnetic Circuit Analysis. 1.3 Magnetic Materials. Chapter 2. Fundamentals of Electrical Machines. 2.1 Electromechanical Fundamentals. 2.2 Electromagnetic Force on a Conductor. Chapter 3. Power Transformers. 3.1 Introduction. 3.2 Transformer Principles of Operations. 3.3 Ideal Transformer. 3.4 Transformer ratings. 3.5 The practical (real) transformer. 3.6 Equivalent Circuit for a Practical Transformer. 3.7 Determination of Equivalent Circuit Parameters. 3.8 Voltage regulation. 3.9 Losses and efficiency. 3.10 Poly-phase transformer. Chapter 4. Synchronous generators. 4.1 Introduction. 4.2 Synchronous Machine Structure. 4.3 Rotating field. 4.4 EMF equation. 4.5 Harmonic E.M.F. 4.6 Magnetic Fluxes in Alternators. 4.7 Concept of Synchronous Reactance and Impedance. Chapter 5. The Synchronous Generator Steady State Performance. 5.1 Voltage regulation of a generator. 5.2 Vector diagram of machine MMF. 5.3 Determination of Voltage Regulation. 5.4 Power-Angle characteristics. 5.5 Performance Circle Diagram. 5.6 Parallel Operation and Load Division. Chapter 6. Synchronous Motor. 6.1 Introduction. 6.2 Effect of Increasing or Decreasing the excitation. 6.3 Effect of Increasing mechanical load. 6.4 V-Curves of Synchronous Motor. 6.5 Power Factor Correction. 6.6 Applications of Synchronous Motor. Chapter 7. Poly-phase Induction Motors. 7.1 Introduction. 7.2 Construction of Induction Motors. 7.3 Principles of Operation. 7.4 The Concept of Slip. 7.5 The Frequency of Rotor Voltages and Current. 7.6 The Equivalent Circuit of an Induction Motor. 7.7 Determination of Equivalent Circuit Parameters. 7.8 Induction Motor Performance. 7.9 Torque-Speed Characteristics of Induction Motor. Chapter 8. Induction Motors Control. 8.1 Introduction. 8.2 Starting of induction Motors. 8.3 Speed Control of 3-Phase Induction Motor. 8.4 Squirrel-Cage Induction Motor. 8.5 Special Rotor Constructions. 8.6 Circle Diagram. Chapter 9. Single-phase induction motors. Chapter 10. Stepper motors
