Starting performance of salient-pole synchronous motors

C. C. Hutchins (Elliott Company, Pittsburgh, Pa.): Every engineer who is engaged in the design of synchronous motors is confronted with the necessity of acquiring a method of calculating the speed-torque and current-torque starting characteristics of a particular motor from its dimensions. Prior to the appearance of the two papers mentioned by the author, there was available only a moderate amount of useful published information in this particular branch of electrical design. Each individual engineer had, however, accumulated certain methods and criteria applying to his particular style of machine. The collection of such information is rather a formidable task as the author has stated.