[เล่ม Xerox ปกแข็ง , สวยกว่าของจริง ] Electric Machines: Theory, Operating Applications, and Controls/Charles I. Hubert

:: Description

          Retaining the student-friendly style of the First Edition, this unique text fills a gap in the available Electronics and Computer Technology texts by devoting more time to current industrial requirements. It presents AC machines and transformers before DC machines, motors before generators, gives more attention to machine characteristics, and makes extensive use of NEMA standards and tables. The “self-contained” nature of each chapter gives instructors significant freedom in course development.

:: Table of Contents

1. Magnetics, Electromagnetic Forces, Generated Voltage, and Energy Conversion. 

2. Transformer Principles. 

3. Transformer Connections, Operation, & Specialty Transformers. 

4. Principles of Three-Phase Induction Motors. 

5. Classification, Performance, Applications, and Operation of Three-Phase Induction Machines. 

6. Single-Phase Induction Motors. 

7. Specialty Machines. 

8. Synchronous Motors. 

9. Synchronous Generators (Alternators). 

10. Principles of Direct Current Machines. 

11. Direct-Current Motor Characteristics and Applications. 

12. Direct-Current Generator Characteristics and Operation. 

13. Control of Electric Motors. 

Appendixes. 

A: Balanced Three-Phase System. 

B: Three-Phase Stator Windings. 

C: Constant-Horsepower, Constant-Torque, and Variable Torque Induction Motors. 

D: Selected Graphic Symbols Used in Controller Diagrams. 

E: Full-Load Current in Amperes, Direct-Current Motors. 

F: Full-Load Current in Amperes, Single-Phase Alternating-Current Motors. 

G: Full-Load Current, Two-Phase Alternating-Current Motors (Four Wire). 

H: Full-Load Current, Three-Phase Alternating-Current Motors. 

I: Representative Transformer Impedances for Single-Phase 60 Hz Transformers. 

J: Unit Conversion Factors. 

Answers to Odd-Numbered Problems.