Excerpt from Design of Electrical Machinery, Vol. 2: A Treatise for the Use, Primarily, of Students in Electrical Engineering Courses The purpose of this volume is to supply a manual on Transformer Design. It contains what the author believes will be of most service to the student who is just entering upon his experience as a designer. Good electrical apparatus cannot be designed by any set of rules, and it must be recognized that it is not, in general, feasible to develop a real designer in a college course. How ever, there are certain fundamental scientific principles which can be laid down definitely and taught with precision. The student should bear in mind that while there is much in this volume that is of practical value, the main object is to present as clearly and briefly as possible the fundamental principles upon which the design necessarily rests. He also should bear in mind that he cannot expect to get any more than a training that will be of value and assistance to him, if at any time in his later experience he should decide to become a designer. An electrical designer must also be a mechanical designer. This point is very often overlooked by the beginner. It is possible to devise some very wonderful designs from an electrical standpoint, but which when the mechanical features are considered are absolutely im practical. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.