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Electric Machinery and Transformers (Oxford Series in Electrical and Computer Engineering)

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Electric Machinery and Transformers (Oxford Series in Electrical and Computer Engineering) Cover

 

Synopses & Reviews

Publisher Comments:

Designed for junior- and senior-level courses in electromechanical energy conversion, Electric Machinery and Transformers, 3/e, continues the strong pedagogical tradition established by its successful previous editions. It begins with a review of the fundamentals of circuit theory and electromagnetics and then introduces the concept of electromechanical energy conversion. The text not only provides a systematic development of a model for each electric machine based upon established principles and basic laws, but also introduces students to applications and advanced topics. It also includes information on the construction of each electric machine.

Electric Machinery and Transformers, 3/e, enhances student learning of the basic operating principles of electric machines by using numerous supporting examples, review questions, illustrations, exercises, and chapter summaries. It encourages intuitive reasoning for problem-solving over the rote memorization of equations and procedures.

This third edition covers the following main topics: principles of electromechanical energy conversion; transformers; direct-current generators and motors; synchronous generators and motors; polyphase induction motors and single-phase motors; the dynamics of electric machines; and special-purpose machines.

Synopsis:

For this revision of their bestselling junior- and senior-level text, Guru and Hiziroglu have incorporated eleven years of cutting-edge developments in the field since Electric Machinery and Transformers was first published. Completely re-written, the new Second Edition also incorporates suggestions from students and instructors who have used the First Edition, making it the best text available for junior- and senior-level courses in electric machines. The new edition features a wealth of new and improved problems and examples, designed to complement the authors' overall goal of encouraging intuitive reasoning rather than rote memorization of material. Chapter 3, which presents the conversion of energy, now includes: analysis of magnetically coupled coils, induced emf in a coil rotating in a uniform magnetic field, induced emf in a coil rotating in a time-varying magnetic field, and the concept of the revolving field. All problems and examples have been rigorously tested using Mathcad.

About the Author

Robert Douglas-Fairhurst is Fellow and Tutor in English at Magdalen College, University of Oxford.

Table of Contents

Preface

Acknowledgments

1 Review of Electric Circuit Theory

1.1. Introduction

1.2. Direct-Current Ciruit Analysis

1.3. Alternating-Current Circuit Analysis

1.4. Three-Phase Circuits

1.5. Power and Impendance Measurements

Summary

Review Questions

Problems

2 Review of Basic Laws of Electromagnetism

2.1. Introduction

2.2. Maxwell's Equations

2.3. Magnetic Materials and Their Properties

2.4. Magnetic Circuits

2.5. Self and Mututal Inductances

2.6. Magnetically Coupled Coils

2.7. Magnetic Losses

2.8. Permanent Magnets

Summary

Review Questions

Problems

3 Principles of Electromechanical Energy Conversion

3.1. Introduction

3.2. Electric Field as a Medium

3.3. Magnetic Field as a Medium

3.4. A Coil in a Uniform Magnetic Field

3.5. A Coil in a Time-Varying Magnetic Field

3.6. Synchronous Motor

3.7. Reluctance Motor

3.8. Electromagnetic Relays

Summary

Review Questions

Problems

4 Transformers

4.1. Introduction

4.2. Construction of a Transformer

4.3. An Ideal Transformer

4.4. A Nonideal Transformer

4.5. Voltage Regulation

4.6. Maximum Efficiency Criterion

4.7. Determination of Transformer Parameters

4.8. Per-Unit Computations

4.9. The Autotransformer

4.10. Three-Phase Transformers

4.11. The Constant-Current Transformer

4.12. Instrument Transformers

Summary

Review Questions

Problems

5 Direct-Current Generators

5.1. Introduction

5.2. Mechanical Construction

5.3. Armature Windings

5.4. Induced emf Equation

5.5. Developed Torque

5.6. Magnetization Charateristic of a DC Machine

5.7. Theory of Commutation

5.8. Armature Reaction

5.9. Types of DC Generators

5.10. Voltage Regulation

5.11. Losses in DC Machines

5.12. A Separately Excited DC Generator

5.13. A Shunt Generator

5.14. A Series Generator

5.15. Compound Generators

5.16. Maxiumum Efficiency Criterion

Summary

Review Questions

Problems

6 Direct-Current Motors

6.1. Introduction

6.2. Operation of a DC Motor

6.3. Speed Regulation

6.4. Losses in a DC Motor

6.5. A Series Motor

6.6. A Shunt Motor

6.7. The Compound Motor

6.8. Methods of Speed Control

6.9. The Ward-Leonard System

6.10. Torque Measurements

6.11. Braking or Reversing DC Motors

Summary

Review Questions

Problems

7 Synchronous Generators

7.1. Introduction

7.2. Construction of a Synchronous Machine

7.3. Armature Windings

7.4. Pitch Factor

7.5. Distribution Factor

7.6. Winding Connections

7.7. Induced emf Equation

7.8. The Equivalent Circuit

7.9. Power Relationships

7.10. Synchronous Generator Tests

7.11. The External Characteristic

7.12. Salient-Pole Synchronous Generator

7.13. Parallel Operation of Synchronous Generators

Summary

Review Questions

Problems

8 Synchronous Motors

8.1. Introduction

8.2. Construction and Operation of a Synchronous Motor

8.3. Equivalent Circuit of a Synchronous Motor

8.4. Power Expressions

8.5. Exact Condition for Maximum Power

8.6. Effect of Excitation

8.7. Power Factor Correction

Summary

Review Questions

Problems

9 Polyphase Induction Motors

9.1. Introduction

9.2. Construction

9.3. Principle of Operation

9.4. Development of an Equivalent Circuit

9.5. An Approximate Equivalent Circuit

9.6. Maximym Power Criterion

9.7. Maximum Torque Criterion

9.8. Maximum Efficiency Criterion

9.9. Some Important Conclusions

9.10. Equivalent Circuit Parameters

9.11. Starting of Induction Motors

9.12. Rotor Impedence Transformation

9.13. Speed Control of Induction Motors

9.14. Types of Induction Motors

Summary

Review Questions

Problems

10 Single-Phase Motors

10.1. Introduction

10.2. Singe-Phase Induction Motor

10.3. Analysis of a Single-Phase Induction Motor

10.4. Types of Single-Phase Induction Motors

10.5. Analysis of a Single-Phase Motor Using Both Windings

10.6. Testing Single-Phase Motors

10.7. Shaded-Pole Motor

10,8. Universal Motor

Summary

Review Questions

Problems

11 Dynamics of Electric Machines

11.1. Introduction

11.2. DC Machine Dynamics

11.3. Synchronous Generator Dynamics

Summary

Review Questions

Problems

12 Special-Purpose Electric Machines

12.1. Introduction

12.2. Permanent-Magnet Motors

12.3. Step Motors

12.4. Switched-Reluctance Motors

12.5. Brushless DC Motors

12.6. Hystersis Motors

12.7. Linear Induction Motors

Summary

Review Questions

Problems

Appendices

A System of Units

B The Laplace Transform

Bibliography

Index

Product Details

ISBN:
9780195138900
Author:
Guru, Bhag
Publisher:
Oxford University Press, USA
Author:
Hiziroglu, H?seyin R.
Author:
&
Author:
uuml
Author:
Hiziroglu, H�seyin R.
Author:
seyin R. Hiziroglu
Author:
null, Bhag S.
Author:
Hiziroglu, Huseyin R.
Author:
Bhag S. Guru
Author:
null, Hüseyin R.
Author:
H
Location:
New York
Subject:
Engineering - Mechanical
Subject:
Machinery
Subject:
Engineering
Subject:
Electricity
Subject:
Computer Engineering
Subject:
Electric machinery
Subject:
Engineering / Electrical
Subject:
Technology | Electrical
Subject:
Mechanical
Subject:
Electronics - General
Subject:
Engineering and Technology | Electrical and Computer Engineering
Subject:
Engineering & Technology | Electrical & Computer Engineering
Subject:
Construction-Heavy Machinery
Edition Number:
3
Edition Description:
Hardcover
Series:
The Oxford series in electrical and computer engineering
Series Volume:
108-409
Publication Date:
20000731
Binding:
HARDCOVER
Grade Level:
College/higher education:
Language:
English
Illustrations:
551 b/w illus.
Pages:
720
Dimensions:
7 x 9.3 x 1.6 in 3.069 lb

Related Subjects

Engineering » Construction » Heavy Machinery
Engineering » Engineering » General Engineering
Engineering » Mechanical Engineering » General
History and Social Science » Politics » United States » Foreign Policy
Religion » Comparative Religion » General
Science and Mathematics » Electricity » General Electricity
Science and Mathematics » Electricity » General Electronics

Electric Machinery and Transformers (Oxford Series in Electrical and Computer Engineering) New Hardcover
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Product details 720 pages Oxford University Press - English 9780195138900 Reviews:
"Synopsis" by , For this revision of their bestselling junior- and senior-level text, Guru and Hiziroglu have incorporated eleven years of cutting-edge developments in the field since Electric Machinery and Transformers was first published. Completely re-written, the new Second Edition also incorporates suggestions from students and instructors who have used the First Edition, making it the best text available for junior- and senior-level courses in electric machines. The new edition features a wealth of new and improved problems and examples, designed to complement the authors' overall goal of encouraging intuitive reasoning rather than rote memorization of material. Chapter 3, which presents the conversion of energy, now includes: analysis of magnetically coupled coils, induced emf in a coil rotating in a uniform magnetic field, induced emf in a coil rotating in a time-varying magnetic field, and the concept of the revolving field. All problems and examples have been rigorously tested using Mathcad.
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