Langsdorf typically begins with the transformer, treating it as the simplest form of AC apparatus.
Detailed analysis of fundamental principles, connections, insulation, heating, and load stresses. Theory-alternating-current-machines-alexander-langsdorf-pdf
: If a modern textbook’s derivation feels like it "hand-waves" a step, Langsdorf likely has the full three-page proof you’re looking for. Langsdorf typically begins with the transformer, treating it
Alexander S. Langsdorf (1877–1973) was the Dean Emeritus of the Schools of Engineering and Architecture at Washington University and a Fellow of the American Institute of Electrical Engineers. Langsdorf typically begins with the transformer