||Delmar Cengage Learning
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The word "motors," as stated in the title, represents a diverse and complicated topic of study. There are many different types of motors, and several different methods of converting electrical energy into rotating mechanical energy via electromagne-tism. The focus of this book is to understand the basics of electromagnetic induction theory, three-phase motor theory, single-phase induction motors theory and operation, common motor control circuit schemes and diagrams, and providing information on magnetic relays and contactors, overload units, magnetic motor starters and motor starter circuits, two- and three-wire motor controls, control circuits, variable-frequency drive principles, practice circuits for connecting the actual motor control circuit components from ladder diagrams. This book will mainly cover single- and three-phase induction motors because they constitute the vast majority of motors the construction electrician will encounter in the field.