Electrical machinery is a comprehensive guide for engineering students. This meticulously revised and restructured version presents a scrupulous and all-inclusive handling of transformers and other familiar types of rotating electrical machines. Each chapter commences with basic elementary concepts and is presented in a simple lucid manner, such that even an average student can effortlessly grasp it.electrical machinery conducts an exhaustive coverage of transformers, d.c. Machines and 3-phase synchronous and induction machines.it highlights the fact that all electrical machines function on similar fundamental doctrines. A separate chapter on electromechanical-energy-conversion principles and d.c./a.c. Machine windings has been provided. The drive features and applications of machines are discussed in detail for all machine types.distinctiveness of power diodes, power transistors, thyristors and other related topics have been discussed precisely. Diodes circuits and rectifiers, phase controlled rectifiers, choppers, inverters are the other major topics covered in this volume. An adequate number of unanswered problems with solutions, theoretical questions and clues to the moderately hard ones are arranged at the conclusion of each chapter to check the student's understanding of the topics covered. Electrical machinery will serve people as a course book during their educational career and as a reference book throughout their professional career this book has been published by khanna publishers in 2009 and is available in paperback.key features: the book includes illustrative figures and examples chosen from questions papers of significant universities, ias, ies and gate. It incorporates abundant problems, theoretical questions and objective-type questions (with answers) to aid the reader to gain expertise on basic concepts. - from Amzon