The Induction Motor; Its Theory and Design: Set Forth By a Practical Method of Calculation (Classic Reprint)

When we decided to publish this work, we were aware that several authors had already given attention to the subject of making calculations for polyphase non-s)nichronous (induction) motors, and that some of them had even given complete theories on the subject We also knew that for a few years past many distinguished professors have been discoursing at length to their pupils on these machines. It is not, therefore, for those engineers who have learned to design induction motors with these authors or with these professors, that this book has been written. We have wished to come to the assistance of those who have not had occasion to take special courses, and who, owing to the lack of sufl5- ciently extended knowledge, have not derived very much profit from all that has appeared in the scientific papers. We have, therefore, endeavored to give a complete study of the polyphase non-synchronous (induction) motor, and to explain at length all the peculiarities of its operation, while remaining within the boimds of elementary mathematics. The reader will find in this treatise a few new deductions and formulae, such as, for instance, that which enables one to estimate the magnetizing action of wave windings, or, again, those which are necessary for defining judiciously the dimensions of the short-circuiting rings for rotors of the squirrel-cage type. We also believe that we have been one of the first to show, by a practical example, the material influence of the thickness of the air-gap on the value of the magnetic leakage factor. THE AUTHOR. Lyons, Sept. ii, 1901.
(Typographical errors above are due to OCR software and don't occur in the book.)

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