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Handbook of Electric Motors, 2nd Ed. [Book Review]

Advances in materials, motor design, electronics, and controls have resulted in many new types of motors and increased efficiency and reliability of more common motor types. Some of the more recently developed motor types include doubly fed induction motors, universal motors, synchronous reluctance motors, aerospace motors, and linear synchronous motors. Although this handbook covers these new motor designs, its strong point is that it contains a fantastic wealth of design information on all kinds of motors. After covering electromagnetic fundamentals pertaining to motors, in Chapter 1, it then describes all types of motors and their characteristics, including applications, advantages, and limitations. It gives the reader a very good understanding of a broad range of modern motor technology. The following chapter on motor selection can be very helpful for finding the right motor type and size for a given application. The next onethird of the book covers motor design and analysis of various types of motor systems such as induction, synchronous, and many types of dc motors. Topics cover design, field analysis, equivalent circuits, design equations, mechanical and thermal design, and FEA and CAD designs. There are also chapters delving into performance testing, motor control circuits, motor protection, mechanical and environmental considerations, reliability, and maintenance. Of more direct interest to our readers, there is a chapter on motor insulation. This chapter discusses more about the effects on insulation in motors rather than insulation itself. It describes general insulation ratings and influence on motor efficiency and life. Also described are the insulating system on form-wound and random-wound motors, insulation testing, and causes for failure along with effects of surge voltage on the windings. Although informative, this chapter is not up to date and is more for general information rather than specifics on motor insulation, as the book is mainly focused on rotor and stator design and application. Anyone who designs or works with motors of all types would definitely find this book to be an excellent handbook and guide for understanding the details of motor design and being able to choose the correct motor for a given application.