Pub. Date:
Cengage Learning
Electricity 4: AC/DC Motors, Controls, and Maintenance / Edition 9

Electricity 4: AC/DC Motors, Controls, and Maintenance / Edition 9

by Jeffrey J. Keljik


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Obtain quick and easy access to information on DC and AC motors, various types of manual, magnetic, and electronic controls, and the installation and maintenance functions of each. Updated to the 2008 National Electrical Code and featuring safety references to the most current OSHA Safe Work policies, Electricity 4: AC/DC Motors, Controls, and Maintenance, 9th Edition provides practical, hands-on information to get the electrical system operating as well as the theory of "why" the system works to aid in troubleshooting. The Ninth Edition features material on Variable Frequency Drives (VFDs) and newer controls for servo and small motors. Current practices and equipment have also been added to the Maintenance section to better enable readers to troubleshoot motors and control problems.

About the Author:
Jeff Keljik is a graduate of Dunwoody College of Technology and holds a Bachelor's degree from Metropolitan State University

Product Details

ISBN-13: 9781435400313
Publisher: Cengage Learning
Publication date: 05/28/2008
Edition description: Older Edition
Pages: 360
Product dimensions: 7.30(w) x 9.10(h) x 0.70(d)

About the Author

Jeff Keljik served as head of the electrical department at Dunwoody College of Technology where he played an integral part in developing the Electrical Design and Management program. He also serves as chairman of the Executive Board for the North Central Electrical League and is a member of the Minnesota Electrical Association Education Committee. The author of ELECTRIC MOTOR AND MOTOR CONTROLS (Cengage Learning), Mr. Keljik is also a contributing writer-editor for AC THEORY & DC THEORY, 3e (Cengage Learning). His honors include the 1993 Kraemer Fellowship Award for new technology education and an award for International Technical Teacher Education. A graduate of Dunwoody College of Technology, he also holds a bachelor's degree from Metropolitan State University as well as a Master Class A license and a Journeyman's Class A license, both from the state of Minnesota.

Table of Contents

Preface     vii
The DC Shunt Motor     1
The DC Series Motor     19
DC Compound Motors     25
Summary Review of Units 1-3     33
Manual Starting of DC Motors     37
Electronic DC Motor Control     45
Basic Principles of Automatic Motor Control     59
The DC Cemf Motor Controller and DC Variable-Speed Motor Drives     69
Dynamic Braking With a DC Motor-Reversal Control     83
Summary Review of Units 5-9     89
Electromechanical and Solid-State Relays and Timers     93
The Three-Phase, Squirrel-Cage Induction Motor     105
Starting Three-Phase, Squirrel-Cage Induction Motors     129
Controllers for Three-Phase Motors     149
The Three-Phase, Wound-Rotor Induction Motor     183
Solid-State Starters and Controls     197
Summary Review of Units 11-16     219
The Synchronous Motor     227
Three-Phase Motor Installations     239
Single-Phase Induction Motors     255
Energy-Efficient Motors     287
AC Series and Repulsion Motors     295
Selsyn Units     311
Motor Maintenance     317
Summary Review of Units18-24     333
Glossary     341
Index     351

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