Electrical Machines

An extensive and easy-to-read guide covering the fundamental concepts of electrical machines, highlighting transformers, motors, generators and magnetic circuits. It provides in-depth discussion on construction, working principles and applications of various electrical machines. The design of transformers, functioning of generators and performance of induction motors are explained through descriptive illustrations, step-by-step solved examples and mathematical derivations. A separate chapter on special purpose machines offers important topics such as servomotors, brushless motors and stepper motors, which is useful from industrial perspective to build a customized machine. Supported by 400 solved examples, 600 figures, and more than 1000 self-assessment exercises, this is an ideal text for one or two-semester undergraduate courses on electrical machines under electrical and electronics engineering.

Preface; Acknowledgements; 1. Electro magnetic circuits; 2. Single-phase transformers; 3. Three-phase transformers; 4. DC generator; 5. DC motors; 6. Synchronous generators or alternators; 7. Parallel operation of alternators; 8. Synchronous motors; 9. Three-phase induction motors; 10. Starting methods of speed control of three-phase induction motors; 11. Single-phase motors; 12. Special purpose machines; Open book questions; Index.

S. K. Sahdev is Associate Dean at the Faculty of Technology and Science at Lovely Professional University, Jalandhar. He has more than thirty-five years of teaching experience. In addition, he has helped industrial units set-up electrical laboratories for testing and developing their products. He has authored six books. His areas of interest include electrical machines, electric drives and power electronics.