The theory, performance, and calculations, of a polyphase capacitor-type motor

A descriptionis given of the polyphase capacitor-type motor, and its theory for various connections of the compensating winding is explained with the help of vector, circuit, and locus diagrams. Performance curves of 100-h. p. and 5-h. p. motors are given and experimental locus diagrams of the latter are compared with those given by theory. Formulae for predetermining the complete performance of the motor with a slide rule are given, and calculated performance curves are compared with test-results.