Electric Machinery and Transformers / Edition 3

by Bhag S. Guru, Huseyin R. Hiziroglu

Overview

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.

Product Details

ISBN-13:	9780195138900
Publisher:	Oxford University Press
Publication date:	07/20/2000
Series:	The ^AOxford Series in Electrical and Computer Engineering
Edition description:	REVISED
Pages:	720
Product dimensions:	7.64(w) x 9.46(h) x 1.52(d)

About the Author

both at GMI Engineering & Management Institute

Table of Contents

PrefaceAcknowledgments1 Review of Electric Circuit Theory1.1. Introduction1.2. Direct-Current Ciruit Analysis1.3. Alternating-Current Circuit Analysis1.4. Three-Phase Circuits1.5. Power and Impendance MeasurementsSummaryReview QuestionsProblems2 Review of Basic Laws of Electromagnetism2.1. Introduction2.2. Maxwell's Equations2.3. Magnetic Materials and Their Properties2.4. Magnetic Circuits2.5. Self and Mututal Inductances2.6. Magnetically Coupled Coils2.7. Magnetic Losses2.8. Permanent MagnetsSummaryReview QuestionsProblems3 Principles of Electromechanical Energy Conversion3.1. Introduction3.2. Electric Field as a Medium3.3. Magnetic Field as a Medium3.4. A Coil in a Uniform Magnetic Field3.5. A Coil in a Time-Varying Magnetic Field3.6. Synchronous Motor3.7. Reluctance Motor3.8. Electromagnetic RelaysSummaryReview QuestionsProblems4 Transformers4.1. Introduction4.2. Construction of a Transformer4.3. An Ideal Transformer4.4. A Nonideal Transformer4.5. Voltage Regulation4.6. Maximum Efficiency Criterion4.7. Determination of Transformer Parameters4.8. Per-Unit Computations4.9. The Autotransformer4.10. Three-Phase Transformers4.11. The Constant-Current Transformer4.12. Instrument TransformersSummaryReview QuestionsProblems5 Direct-Current Generators5.1. Introduction5.2. Mechanical Construction5.3. Armature Windings5.4. Induced emf Equation5.5. Developed Torque5.6. Magnetization Charateristic of a DC Machine5.7. Theory of Commutation5.8. Armature Reaction5.9. Types of DC Generators5.10. Voltage Regulation5.11. Losses in DC Machines5.12. A Separately Excited DC Generator5.13. A Shunt Generator5.14. A Series Generator5.15. Compound Generators5.16. Maxiumum Efficiency CriterionSummaryReview QuestionsProblems6 Direct-Current Motors6.1. Introduction6.2. Operation of a DC Motor6.3. Speed Regulation6.4. Losses in a DC Motor6.5. A Series Motor6.6. A Shunt Motor6.7. The Compound Motor6.8. Methods of Speed Control6.9. The Ward-Leonard System6.10. Torque Measurements6.11. Braking or Reversing DC MotorsSummaryReview QuestionsProblems7 Synchronous Generators7.1. Introduction7.2. Construction of a Synchronous Machine7.3. Armature Windings7.4. Pitch Factor7.5. Distribution Factor7.6. Winding Connections7.7. Induced emf Equation7.8. The Equivalent Circuit7.9. Power Relationships7.10. Synchronous Generator Tests7.11. The External Characteristic7.12. Salient-Pole Synchronous Generator7.13. Parallel Operation of Synchronous GeneratorsSummaryReview QuestionsProblems8 Synchronous Motors8.1. Introduction8.2. Construction and Operation of a Synchronous Motor8.3. Equivalent Circuit of a Synchronous Motor8.4. Power Expressions8.5. Exact Condition for Maximum Power8.6. Effect of Excitation8.7. Power Factor CorrectionSummaryReview QuestionsProblems9 Polyphase Induction Motors9.1. Introduction9.2. Construction9.3. Principle of Operation9.4. Development of an Equivalent Circuit9.5. An Approximate Equivalent Circuit9.6. Maximym Power Criterion9.7. Maximum Torque Criterion9.8. Maximum Efficiency Criterion9.9. Some Important Conclusions9.10. Equivalent Circuit Parameters9.11. Starting of Induction Motors9.12. Rotor Impedence Transformation9.13. Speed Control of Induction Motors9.14. Types of Induction MotorsSummaryReview QuestionsProblems10 Single-Phase Motors10.1. Introduction10.2. Singe-Phase Induction Motor10.3. Analysis of a Single-Phase Induction Motor10.4. Types of Single-Phase Induction Motors10.5. Analysis of a Single-Phase Motor Using Both Windings10.6. Testing Single-Phase Motors10.7. Shaded-Pole Motor10,8. Universal MotorSummaryReview QuestionsProblems11 Dynamics of Electric Machines11.1. Introduction11.2. DC Machine Dynamics11.3. Synchronous Generator DynamicsSummaryReview QuestionsProblems12 Special-Purpose Electric Machines12.1. Introduction12.2. Permanent-Magnet Motors12.3. Step Motors12.4. Switched-Reluctance Motors12.5. Brushless DC Motors12.6. Hystersis Motors12.7. Linear Induction MotorsSummaryReview QuestionsProblemsAppendicesA System of UnitsB The Laplace TransformBibliographyIndex