Theory and Calculations of Electrical Apparatus is a comprehensive textbook written by Charles Proteus Steinmetz and first published in 1917. The book covers the theoretical and practical aspects of electrical engineering, including the principles of electromagnetism, electrical circuits, and the design and operation of electrical machines such as motors and generators. Steinmetz, a pioneering electrical engineer and mathematician, presents complex concepts in a clear and accessible manner, making this book a valuable resource for students, engineers, and anyone interested in the field of electrical engineering. The book includes numerous illustrations, diagrams, and mathematical formulas to aid in understanding the material. The topics covered in the book include magnetic circuits, transformers, induction motors, synchronous motors, direct-current generators, and alternating-current generators. Steinmetz also discusses the application of electrical apparatus in various industries, such as power generation, transportation, and manufacturing. Overall, Theory and Calculations of Electrical Apparatus is a seminal work in the field of electrical engineering, providing a foundation for the understanding and design of electrical machines that continues to be relevant today.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.