electrical machinery
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Description
Book Introduction
This second edition of Electrical Machinery has no major changes from the first edition, but improvements have been made throughout the book.
We have corrected ambiguous expressions, including errors discovered during the process, removed overly long explanations, and filled in insufficient ones.
Some examples and figures have been added to increase understanding.
The minimum energy efficiency standards have been changed, and the relevant matters have been reflected as the Korean Electrical Equipment Regulations (KEC), which are based on IEC regulations, have been implemented since 2021.
A lot has changed since the first edition of this book was published in 2018.
As the climate crisis becomes a real and tangible threat worldwide, it appears that a period of great transformation has begun, shifting the industrial paradigm from a high-efficiency industrial society based on mass production to an eco-friendly and sustainable industry.
To borrow an electrical engineering expression, we have just entered a transitional state, moving from the existing steady state, where we could reasonably settle, to a new steady state, where we do not know where we are and when we will reach it.
There are also many changes taking place in fields related to electrical machinery.
Renewable energy technologies such as wind power will continue to expand, the electric vehicle industry is experiencing significant growth, and demand for specialized devices for use in various AI-powered robots is expected to grow even further.
The greater the change, the more important it is to have a fundamental understanding and depth of insight.
In today's world, where excitement and fear coexist, I hope this book will help electrical engineering students navigate the foggy future.
We have corrected ambiguous expressions, including errors discovered during the process, removed overly long explanations, and filled in insufficient ones.
Some examples and figures have been added to increase understanding.
The minimum energy efficiency standards have been changed, and the relevant matters have been reflected as the Korean Electrical Equipment Regulations (KEC), which are based on IEC regulations, have been implemented since 2021.
A lot has changed since the first edition of this book was published in 2018.
As the climate crisis becomes a real and tangible threat worldwide, it appears that a period of great transformation has begun, shifting the industrial paradigm from a high-efficiency industrial society based on mass production to an eco-friendly and sustainable industry.
To borrow an electrical engineering expression, we have just entered a transitional state, moving from the existing steady state, where we could reasonably settle, to a new steady state, where we do not know where we are and when we will reach it.
There are also many changes taking place in fields related to electrical machinery.
Renewable energy technologies such as wind power will continue to expand, the electric vehicle industry is experiencing significant growth, and demand for specialized devices for use in various AI-powered robots is expected to grow even further.
The greater the change, the more important it is to have a fundamental understanding and depth of insight.
In today's world, where excitement and fear coexist, I hope this book will help electrical engineering students navigate the foggy future.
index
Chapter 1 Magnetic Fields and Coils 1
1-1 Magnetic field, magnetomotive force, and magnetic resistance 2
1-2 Coil 4 with magnetic material
1-3 Magnetization characteristics of iron core materials 9
1-4 Magnetic Circuit 15
1-5 Electromagnetic Induction Phenomena 23
1-6 Coils operating on AC power 29
1-7 Characteristics of iron cores magnetized by alternating current 34
AC equivalent circuit of 1-8 coils 40
Practice Problem 43
Chapter 2 Transformer 47
2-1 Overview of Transformer 48
2-2 Operation of an Ideal Transformer 51
2-3 Impedance Conversion 54
Equivalent circuit of 2-4 transformer 59
2-5 Transformer Ratings and Units 65
2-6 Transformer impedance 70
2-7 Voltage fluctuation rate 74
2-8 Loss and Efficiency 79
2-9 Transformer Constant Measurement 83
2-10 Transformer Structure 86
Practice Problem 95
Chapter 3 Three-phase transformers and special transformers 99
3-1 Transformer polarity 100
3-2 Three-phase transformer and three-phase wiring 102
3-3 Equivalent circuit of a three-phase transformer 112
3-4 3-phase transformer excitation current 117
3-5 Characteristics and Uses of Three-Phase Wiring 123
3-6 Parallel Operation 130
3-7 Special type of three-phase connection 135
3-8 single-phase transformer 140
3-9 Instrumentation Transformer 148
3-10 Considerations for Transformer Operation 153
Practice Problem 159
Chapter 4: Electromechanical Energy Conversion 163
4-1 Basic Operations of Electromechanical Energy Conversion 164
4-2 Mechanical Motion and Power 167
4-3 Fleming's Law 175
4-4 Electromechanical Energy Conversion Operation 179
4-5 rotator torque 186
4-6 Overview of Electrical Machines 191
Practice Problem 199
Chapter 5: Principles and Structure of DC Motors 201
5-1 Basic Operation of DC Motor 202
5-2 Structure of a DC Generator 207
5-3 Armature Winding 214
5-4 Organic electromotive force and organic torque 228
5-5 DC female 234
5-6 Stopping Delay and Compensation 237
5-7 Electromagnetic Reaction 242
5-8 DC motor loss and rating 245
Practice Problem 247
Chapter 6: DC Generators 249
6-1 Equivalent circuit of a DC generator 250
6-2 Tari-type DC generator 252
6-3 DC Generator 257
6-4 Series DC Generator 267
6-5 Lottery DC Generator 268
6-6 Uses of DC Generators 272
6-7 Parallel Operation 275
Practice Problem 280
Chapter 7 DC Motors 283
7-1 Driven/Distributed DC Motor 284
7-2 Series DC Motor 290
7-3 Lottery DC Motor 295
7-4 Characteristics and Uses of DC Motors 298
7-5 Speed Control of DC Motors 302
7-6 Starting a DC Motor 313
7-7 Braking of DC Motors 316
Practice Problem 322
Chapter 8: Basics of Alternating Currents 325
8-1 Coil and Magnetization Characteristics of Alternator 326
8-2 Rotating magnetic field 331
8-3 Organic electromotive force and magnetizing current 341
8-4 Air-gap Flux and Electromechanical Energy Conversion 347
8-5 Stator winding of alternator 351
Practice Problem 361
Chapter 9 Induction Motors 363
9-1 Principles of Induction Motors 364
9-2 Structure of an induction motor 367
9-3 Basic Operation of Induction Motors 371
9-4 Equivalent circuit of an induction motor 375
9-5 Power Loss and Mechanical Output 383
9-6 Current and Torque Characteristics 389
9-7 Effect of circuit constants and types of induction motors 402
9-8 Induction Motor Integrity Measurement 410
Practice Problem 414
Chapter 10: Operation and Applications of Induction Motors 417
10-1 Induction Motor Nameplate 418
10-2 Voltage and Frequency 422
10-3 Efficiency of induction motor 432
10-4 Power Factor and Power Factor Compensation 438
Starting an Induction Motor 445
10-6 Starting method of induction motor 452
10-7 Speed Control of Induction Motors 460
10-8 Induction Generator 471
10-9 Braking of Induction Motors 481
Practice Problem 484
Chapter 11 Synchronous Motors 487
11-1 Basic Operation of the Synchronous Machine 488
11-2 Structure of the Synchronous Generator 493
11-3 Equivalent circuit of the synchronous machine 503
11-4 Power and Torque 512
11-5 Operating Characteristics of Synchronous Motors 517
11-6 Ratings and Operating Limits of Synchronous Motors 527
11-7 Pole-type synchronous machine 534
11-8 Maneuvering and Braking 539
11-9 Applications of Synchronous Motors 543
Practice Problem 546
Chapter 12: Synchronous Generators 549
12-1 Types of Synchronous Generators 550
12-2 Basic operation and equivalent circuit of a synchronous generator 560
12-3 Power of synchronous generator 562
12-4 Synchronous impedance and short-circuit ratio 566
12-5 Single-phase operation of a synchronous generator 571
12-6 Parallel Operation of Synchronous Generators 577
12-7 Ratings and Capacity of Synchronous Generators 586
12-8 Paragraph Transient Phenomenon 591
Practice Problem 596
Chapter 13 Single-Phase Motors 599
13-1 Principle of single-phase induction motor 600
13-2 Induction Motor 604
13-3 Equivalent circuit and torque of a single-phase induction motor 614
13-4 Delay Coil Motor 619
13-5 Hysteresis Motor 621
13-6 AC series motor (universal motor) 626
Practice Problem 631
Chapter 14 Permanent Magnet Motors and Reluctance Motors 633
14-1 Permanent Magnet 634
14-2 Permanent Magnet Direct Current Motor (PMDC) 643
14-3 Permanent Magnet Synchronous Motor (PMSM) 648
14-4 Brushless DC Motor (BLDC) 664
14-5 Synchronous Reluctance Motor (SynRM) 673
14-6 Switched Reluctance Motor (SRM) 677
14-7 Stepping Motor 683
Practice Problem 695
Appendix A Constants and Material Properties 699
Appendix B Unit Conversion 700
Appendix C Insulation Class 701
Appendix D: Basic Concepts of Single-Phase and Three-Phase AC 707
Appendix E Three-Phase Imbalance and Symmetric Coordinate Components 718
Appendix F Harmonics in AC Circuits 725
Reference 733
Search 734
1-1 Magnetic field, magnetomotive force, and magnetic resistance 2
1-2 Coil 4 with magnetic material
1-3 Magnetization characteristics of iron core materials 9
1-4 Magnetic Circuit 15
1-5 Electromagnetic Induction Phenomena 23
1-6 Coils operating on AC power 29
1-7 Characteristics of iron cores magnetized by alternating current 34
AC equivalent circuit of 1-8 coils 40
Practice Problem 43
Chapter 2 Transformer 47
2-1 Overview of Transformer 48
2-2 Operation of an Ideal Transformer 51
2-3 Impedance Conversion 54
Equivalent circuit of 2-4 transformer 59
2-5 Transformer Ratings and Units 65
2-6 Transformer impedance 70
2-7 Voltage fluctuation rate 74
2-8 Loss and Efficiency 79
2-9 Transformer Constant Measurement 83
2-10 Transformer Structure 86
Practice Problem 95
Chapter 3 Three-phase transformers and special transformers 99
3-1 Transformer polarity 100
3-2 Three-phase transformer and three-phase wiring 102
3-3 Equivalent circuit of a three-phase transformer 112
3-4 3-phase transformer excitation current 117
3-5 Characteristics and Uses of Three-Phase Wiring 123
3-6 Parallel Operation 130
3-7 Special type of three-phase connection 135
3-8 single-phase transformer 140
3-9 Instrumentation Transformer 148
3-10 Considerations for Transformer Operation 153
Practice Problem 159
Chapter 4: Electromechanical Energy Conversion 163
4-1 Basic Operations of Electromechanical Energy Conversion 164
4-2 Mechanical Motion and Power 167
4-3 Fleming's Law 175
4-4 Electromechanical Energy Conversion Operation 179
4-5 rotator torque 186
4-6 Overview of Electrical Machines 191
Practice Problem 199
Chapter 5: Principles and Structure of DC Motors 201
5-1 Basic Operation of DC Motor 202
5-2 Structure of a DC Generator 207
5-3 Armature Winding 214
5-4 Organic electromotive force and organic torque 228
5-5 DC female 234
5-6 Stopping Delay and Compensation 237
5-7 Electromagnetic Reaction 242
5-8 DC motor loss and rating 245
Practice Problem 247
Chapter 6: DC Generators 249
6-1 Equivalent circuit of a DC generator 250
6-2 Tari-type DC generator 252
6-3 DC Generator 257
6-4 Series DC Generator 267
6-5 Lottery DC Generator 268
6-6 Uses of DC Generators 272
6-7 Parallel Operation 275
Practice Problem 280
Chapter 7 DC Motors 283
7-1 Driven/Distributed DC Motor 284
7-2 Series DC Motor 290
7-3 Lottery DC Motor 295
7-4 Characteristics and Uses of DC Motors 298
7-5 Speed Control of DC Motors 302
7-6 Starting a DC Motor 313
7-7 Braking of DC Motors 316
Practice Problem 322
Chapter 8: Basics of Alternating Currents 325
8-1 Coil and Magnetization Characteristics of Alternator 326
8-2 Rotating magnetic field 331
8-3 Organic electromotive force and magnetizing current 341
8-4 Air-gap Flux and Electromechanical Energy Conversion 347
8-5 Stator winding of alternator 351
Practice Problem 361
Chapter 9 Induction Motors 363
9-1 Principles of Induction Motors 364
9-2 Structure of an induction motor 367
9-3 Basic Operation of Induction Motors 371
9-4 Equivalent circuit of an induction motor 375
9-5 Power Loss and Mechanical Output 383
9-6 Current and Torque Characteristics 389
9-7 Effect of circuit constants and types of induction motors 402
9-8 Induction Motor Integrity Measurement 410
Practice Problem 414
Chapter 10: Operation and Applications of Induction Motors 417
10-1 Induction Motor Nameplate 418
10-2 Voltage and Frequency 422
10-3 Efficiency of induction motor 432
10-4 Power Factor and Power Factor Compensation 438
Starting an Induction Motor 445
10-6 Starting method of induction motor 452
10-7 Speed Control of Induction Motors 460
10-8 Induction Generator 471
10-9 Braking of Induction Motors 481
Practice Problem 484
Chapter 11 Synchronous Motors 487
11-1 Basic Operation of the Synchronous Machine 488
11-2 Structure of the Synchronous Generator 493
11-3 Equivalent circuit of the synchronous machine 503
11-4 Power and Torque 512
11-5 Operating Characteristics of Synchronous Motors 517
11-6 Ratings and Operating Limits of Synchronous Motors 527
11-7 Pole-type synchronous machine 534
11-8 Maneuvering and Braking 539
11-9 Applications of Synchronous Motors 543
Practice Problem 546
Chapter 12: Synchronous Generators 549
12-1 Types of Synchronous Generators 550
12-2 Basic operation and equivalent circuit of a synchronous generator 560
12-3 Power of synchronous generator 562
12-4 Synchronous impedance and short-circuit ratio 566
12-5 Single-phase operation of a synchronous generator 571
12-6 Parallel Operation of Synchronous Generators 577
12-7 Ratings and Capacity of Synchronous Generators 586
12-8 Paragraph Transient Phenomenon 591
Practice Problem 596
Chapter 13 Single-Phase Motors 599
13-1 Principle of single-phase induction motor 600
13-2 Induction Motor 604
13-3 Equivalent circuit and torque of a single-phase induction motor 614
13-4 Delay Coil Motor 619
13-5 Hysteresis Motor 621
13-6 AC series motor (universal motor) 626
Practice Problem 631
Chapter 14 Permanent Magnet Motors and Reluctance Motors 633
14-1 Permanent Magnet 634
14-2 Permanent Magnet Direct Current Motor (PMDC) 643
14-3 Permanent Magnet Synchronous Motor (PMSM) 648
14-4 Brushless DC Motor (BLDC) 664
14-5 Synchronous Reluctance Motor (SynRM) 673
14-6 Switched Reluctance Motor (SRM) 677
14-7 Stepping Motor 683
Practice Problem 695
Appendix A Constants and Material Properties 699
Appendix B Unit Conversion 700
Appendix C Insulation Class 701
Appendix D: Basic Concepts of Single-Phase and Three-Phase AC 707
Appendix E Three-Phase Imbalance and Symmetric Coordinate Components 718
Appendix F Harmonics in AC Circuits 725
Reference 733
Search 734
GOODS SPECIFICS
- Date of issue: February 22, 2024
- Page count, weight, size: 738 pages | 188*257*40mm
- ISBN13: 9791185294445
- ISBN10: 1185294449
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