EBOOK - Electricity AC/DC Motors Controls and Maintenance 10th (Jeff Keljik)


EBOOK - Bảo trì và điều khiển động cơ điện AC/DC 10th (Jeff Keljik) - 418 Trang.

The tenth edition of Electricity 4has been updated to provide more information and better flow of concepts. New material and artwork have been added to better reflect the current workplace. At the same time, the text has retained the features and style of previous editions that have made it so popular.

The text introduces the concepts of AC and DC motors, and the associated controls and maintenance of this equipment. The material is broken down into short segments that concentrate on specific concepts or application of particular types of equipment. The detailed explanations are written in easy-to-understand language that concisely presents the required knowledge. Many illustrations and photographs help provide technical understanding and provide real-world references. This type of explanation and application better prepares the student to perform effectively on the job in installing, troubleshooting, repairing, and servicing electrical motors and controls.
The knowledge obtained in this book permits the student to progress further in the study of electrical systems. The study of electricity and the application of electrical products are continually changing. The electrical industry constantly introduces new and improved devices and material, which in turn lead to changes in installing and operating equipment. Electrical codes also change to reflect the industry needs. It isessential that students continue to learn and update their knowledge of current procedures and practices.

CONTENTS:

1  THE DC SHUNT MOTOR •1
2  THE DC SERIES MOTOR •19
3  DC COMPOUND MOTORS •25
4  SUMMARY REVIEW OF UNITS 1–3 •33
5  STARTING AND OPERATING DC MOTORS •37
6  ELECTRONIC DC MOTOR CONTROL •47
7  DC VARIABLE SPEED MOTOR CONTROL •63
8  DC MOTOR DYNAMIC BRAKING •77
9  BASIC PRINCIPLES OF AUTOMATIC MOTOR CONTROL •85
10  ELECTROMECHANICAL AND SOLID-STATE RELAYS AND TIMERS •95
11  SUMMARY REVIEW OF UNITS 5–10 •109
12  THE THREE-PHASE AC INDUCTION MOTOR •113
13  STARTING THREE-PHASE AC INDUCTION MOTORS •139
14  CONTROLLERS FOR THREE-PHASE MOTORS •159
15  SOLID-STATE STARTERS AND CONTROLS •193
16  THE WOUND-ROTOR INDUCTION MOTOR •217
17  THE SYNCHRONOUS MOTOR •233
18  SUMMARY REVIEW OF UNITS 12–17 •247
19  SINGLE-PHASE INDUCTION MOTORS •257
20  SPECIAL MOTORS AND APPLICATIONS •283
21  AC SERIES AND REPULSION MOTORS •299
22 ENERGY-EFFICIENT MOTORS •317
23  THREE-PHASE MOTOR INSTALLATIONS •329
24  SINGLE-PHASE MOTOR AND DC MOTOR INSTALLATION AND THE NATIONAL ELECTRICAL CODE® •347
25 MOTOR MAINTENANCE •355
26  SUMMARY REVIEW OF UNITS 19–25 •373

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