Generously illustrated with over 1600 dispaly equations and more than 145 drawings, diagrams and photographs, this book is a handy, single-source reference suited to readers with a wide span of educational backgrounds and technical experience. Comprehensive in both scope and depth this manual covers all significant aspects of the field, such as Amperes Law and Faraday's Law, emphasing basic explanations of motor behaviour, derives all important equations and relationships required to analyze, design and apply polyphase induction motors, uses worldwide SI units or international MKS system of units as well as practical units used in the US and shows how to apply working equations to real-life situations with numerical examples... and more.
Provides the general background for design of electrical motors by placing motor design in the context of the overall drive and its function, and with a survey of the various electrical and mechanical components. The design itself is addressed using an original approach based on first principles: it begins with the design specifications, expresses them in terms of electric and magnetic stresses, establishes appropriate geometry, and arrives at the dimensions. Unconventional topologies are also discussed.
This book provides a thorough approach for mastering the behavior and operation of induction motors, an essential device in the modern industrial world. Its way of presentation renders this book suitable for selfteaching by students, engineers, and researchers in the field of electrical engineering. It covers the modern theory of induction motor applications and control methods. The transient analysis of both three-phase and single-phase induction motors as well as that of the double-cage motors are developed. The principles of such modern control methods as Fiel-Oriented Control, Direct Torque Control and Computed Charges Acceleration Method are clearly treated in this monograph. Numerous equations, simulations, and figures are presented.
Revised and updated throughout, the second edition of Energy-Efficient Electric Motors provides guidelines for picking and using electric motors on an energy conservation and life-cycle cost basis - emphasizing both single- and three-phase motors in the 1- to 200-hp range that offer maximum opportunities for energy savings.;Maintaining the features of the first edition, this concise resource: explains current improvements in electric motor capabilities and recently adopted NEMA energy-efficient motor standards; contains a new section about the power factor with nonlinear loads; covers the performance of polyphase induction motors supplied by adjustable frequency power supplies for several types of loads, presents information on numerous kinds of power semiconductors used in variable-frequency power supply systems; provides expanded coverage comparing various types of adjustable speed drives when applied to constant torque and variable torque loads; and contains a new summary checklist criteria for selecting induction motors for adjustable frequency drive systems.;Generously illustrated with nearly 200 figures and tables, the second edition of Energy-Efficient Electric Motors is timely reading for electrical, electronics, mechanical, consulting, specifying, and plant engineers; plant and purchasing managers; original equipment, heating, ventilating, and air-conditioning manufacturers; and continuing-education courses in these disciplines.
Excerpt from Connecting Induction Motors: The Practical Application of a Designing Engineer's Experience to the Problems of Operating Engineers, Armature Winders and Repair Men; Also the Presentation to Students of Practical Questions Arising in Winding and Connecting Alternating Current Motors The material which later developed into this book appeared first in the Electric Journal in February, 1916. It was pre pared as a general answer to questions which come to the Ques tion Box Editor, regarding Induction Motor Connections and the possibility of making changes to meet varying conditions of voltage, phase, etc. This article came to the attention of Mr. F. A. Annett, Associate Editor of Power, and at his request was elaborated into a series of articles appearing at intervals from January, 1917, for about 3 years. From the comments on these articles, there appeared to be a justification for a permanent form which is now presented in this book. Owing to the fact that the articles appeared in this way and without definite plan at the start, the material lacks unity in some details, and also bears evidence of being viewed from a repair standpoint rather than as a book on winding. The author still cherishes the hope that the future may bring time and opportunity for a revision, which will permit a more orderly arrangement. In its present form it is offered for what it may be worth to practical men engaged in Operating and repair work. It was these men who were always in mind and for whose use the material was intended. 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.
