You can purchase a used physical copy, but be prepared to hunt for it.
Covers the operating principles, torque-speed characteristics, and starting methods. 4. Special Machines and Converters theoryalternatingcurrentmachinesalexanderlangsdorfpdf 2021
Thorough explanations of how the armature MMF and flux interact. You can purchase a used physical copy, but
Alexander S. Langsdorf was a distinguished professor of electrical engineering and Dean Emeritus of the Schools of Engineering and Architecture at Washington University in St. Louis. His approach to teaching electrical engineering was characterized by rigorous mathematical derivation, clear physical visualization, and an uncompromising focus on core principles. Special Machines and Converters Thorough explanations of how
– Theory of Alternating-Current Machines by Alexander S. Langsdorf (originally published by McGraw-Hill, circa 1950s–1970s) is a classic electrical engineering text. There is no 2021 edition of this book; the author died in 1996, and the book is long out of print. Any “2021” version would likely be a print-on-demand or scanned reprint, not a new edition.