Cover image for Electricity 4 : AC/DC motors, controls, and maintenance
Electricity 4 : AC/DC motors, controls, and maintenance
Alerich, Walter N.
Personal Author:
Seventh edition.
Publication Information:
New York : Delmar, [2001]

Physical Description:
viii, 360 pages : illustrations (some color) ; 24 cm
General Note:
Includes index.
Added Author:
Format :


Call Number
Material Type
Home Location
Item Holds
TK2712 .A55 2001 Adult Non-Fiction Non-Fiction Area

On Order



The fourth book in Delmar's Electricity 1-4 series, Electricity 4: AC/DC Motors, Controls and Maintenance, 7E introduces readers to DC and AC motors, as well as many types of manual, magnetic and electronic controls. Throughout this edition, motors are described in detail enabling the reader to develop a working knowledge of the operations, advantages and disadvantages of each type. A wide variety of controls are also explained to aid understanding, while discussion of AC motors and associated controls helps to develop an appreciation of control schemes applied to various applications of the motors. This edition features new and improved photos and diagrams to better enable readers to tie theory and practice together into real-life situations. Any references to the National Electrical Code® have been updated, and some chapter material has also been rearranged to improve continuity. Specific objectives precede the introduction of each topic, while summaries and quiz items enable readers to measure their progress at the end of each chapter.

Table of Contents

Prefacep. v
1 The DC Shunt Motorp. 1
2 The DC Series Motorp. 19
3 DC Compound Motorsp. 25
4 Summary Review of Units 1-3p. 33
5 Manual-Starting DC Motorsp. 37
6 Electronic DC Motor Controlp. 53
7 Basic Principles of Automatic Motor Controlp. 63
8 The DC CEMF Motor Controller and DC Variable-Speed Motor Drivesp. 71
9 The DC Voltage-Drop Acceleration Controllerp. 85
10 The DC Series-Lockout, Relay Acceleration Controllerp. 91
11 Dynamic Braking with a DC Motor-Reversal Controlp. 95
12 Summary Review of Units 5-11p. 101
13 Electromechanical and Solid-State Relays and Timersp. 105
14 The Three-Phase, Squirrel-Cage Induction Motorp. 117
15 Starting Three-Phase, Squirrel-Cage Induction Motorsp. 141
16 Controllers for Three-Phase Motorsp. 159
17 The Three-Phase, Wound-Rotor Induction Motorp. 193
18 Solid-State Starters and Controlsp. 207
19 Summary Review of Units 13-18p. 229
20 The Synchronous Motorp. 237
21 Three-Phase Motor Installationsp. 249
22 Single-Phase Induction Motorsp. 265
23 Energy-Efficient Motorsp. 291
24 AC Series and Repulsion Motorsp. 301
25 Selsyn Unitsp. 317
26 Motor Maintenancep. 323
27 Summary Review of Units 20-26p. 341
Glossaryp. 349
Indexp. 357