Handbook of small electric motors

William Yeadon, Alan Yeadon007072332X, 9780070723320

*A complete, definitive source for the design, manufacture, application, and testing of small electric motors less than ten horsepower *Gives motor design engineers, test technicians, and engineers top-to-bottom coverage of materials used in motor manufacturing, as well as how-to advice on selecting the right design and assembly method *Includes a full section on motor applications

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Table of contents :
Front Matter……Page 1
Contributors……Page 4
Acknowledgements……Page 6
About the Contributors……Page 7
About the Editors……Page 12
Table of Contents……Page 0
Table of Contents……Page 13
A……Page 16
B……Page 18
C……Page 20
D……Page 25
E……Page 26
F……Page 29
G……Page 30
H……Page 31
I……Page 32
J……Page 33
L……Page 34
M……Page 35
N……Page 37
O……Page 38
P……Page 39
R……Page 42
S……Page 44
T……Page 48
W……Page 51
Z……Page 52
1.1 Units……Page 53
1.2 Definition of Terms……Page 58
1.3 Estimating the Permeance of Probable Flux Paths……Page 73
1.4 Electromechanical Forces and Torques……Page 84
1.5 Magnetic Materials……Page 95
1.6 Losses……Page 104
1.7 Magnetic Moment (or Magnetic Dipole Moment)……Page 110
1.8 Magnetic Field for a Current Loop……Page 117
1.10 Coil Design……Page 119
1.11 Reluctance Actuator Static and Dynamic (Motion) Analysis……Page 130
1.12 Moving-Coil Actuator Static and Dynamic (Motion) Analysis……Page 135
1.13 Electromagnetic Forces……Page 141
1.14 Energy Approach (Energy-Coenergy)……Page 143
2.1 Magnetic Materials……Page 149
2.2 Lamination Steel Specifications……Page 152
2.3 Lamination Annealing……Page 154
2.4 Core Loss……Page 194
2.5 Pressed Soft Magnetic Material for Motor Applications……Page 199
2.6 Powder Metallurgy……Page 207
2.7 Magnetic Test Methods……Page 220
2.8 Characteristics of Permanent Magnets……Page 229
2.9 Insulation……Page 312
2.10 Magnet Wire……Page 325
2.11 Lead Wire and Terminations……Page 338
3.1 Motor Manufacturing Process Flow……Page 339
3.2 End Frame Manufacturing……Page 342
3.3 Housing Materials and Manufacturing Processes……Page 348
3.4 Shaft Materials and Machining……Page 350
3.5 Shaft Hardening……Page 352
3.6 Rotor Assembly……Page 353
3.7 Wound Stator Assembly Processing……Page 359
3.8 Armature Manufacturing and Assembly……Page 360
3.9 Assembly, Testing, Painting, and Packing……Page 361
3.10 Magnetic Cores……Page 363
3.11 Bearing Systems for Small Electric Motors……Page 384
3.12 Sleeve Bearings……Page 410
3.13 Process Control in Commutator Fusing……Page 417
3.14 Armature and Rotor Balancing……Page 425
3.15 Brush Holders for Small Motors……Page 437
3.16 Varnish Impregnation……Page 441
3.17 Adhesives……Page 447
3.18 Magnetizers, Magnetizing Fixtures, and Test Equipment……Page 462
3.19 Capacitive-Discharge Magnetizing……Page 476
4.1 Theory of DC Motors……Page 486
4.2 Lamination, Field, and Housing Geometry……Page 531
4.3 Commutation……Page 569
4.4 PMDC Motor Performance……Page 582
4.5 Series DC and Universal AC Performance……Page 602
4.6 Shunt-Connected DC Motor Performance……Page 616
4.7 Compound-Wound DC Motor Calculations……Page 620
4.8 DC Motor Windings……Page 624
4.9 Automatic Armature Winding Pioneering Theory and Practice……Page 626
5.1 Brushless Direct-Current (BLDC) Motors……Page 668
5.2 Step Motors……Page 714
5.3 Switched-Reluctance Motors……Page 766
6.1. Introduction……Page 775
6.2. Theory of Single-Phase Induction Motor Operation……Page 779
6.3. Three-Phase Induction Motor Dynamic Equations and Steady-State Equivalent
Circuit
……Page 812
6.4. Single-Phase and Polyphase Induction Motor Performance Calculations……Page 819
7.1 Induction Synchronous Motors……Page 908
7.2 Hysteresis Synchronous Motors……Page 912
7.3 Permanent-Magnet Synchronous Motors……Page 916
7.4 Performance Calculation and Analysis……Page 923
8.1 Motor Application Requirements……Page 932
8.2 Velocity Profiles……Page 935
8.3 Current Density……Page 940
8.4 Thermal Analysis for a PMDC Motor……Page 941
8.6 Electromagnetic Interference (EMI)……Page 963
8.7 Electromagnetic Fields and Radiation……Page 966
8.8 Controlling EMI……Page 969
9.1 Speed-Torque Curves……Page 970
9.2 AC Motor Thermal Tests……Page 974
9.3 DC Motor Testing……Page 978
9.4 Motor Spectral Analysis……Page 984
9.5 Resonance Control in Small Motors……Page 996
9.6 Fatigue and Lubrication Tests……Page 1005
9.7 Qualification Tests for Adhesives and Plastic Assemblies……Page 1011
9.8 Trends in Test Automation……Page 1012
10.1 Measurement Systems Terminology……Page 1017
10.2 Environmental Standards……Page 1020
10.3 Feedback Element……Page 1025
10.4 Comparisons Between the Various Technologies……Page 1058
10.5 Future Trends in Sensor Technology……Page 1064
10.6 Selection of Short-Circuit Protection and Control for Design E Motors……Page 1067
10.7 Switched-Reluctance Motor Controls……Page 1081
10.8 Basic Stepping-Motor Control Circuits……Page 1086
10.9 Current Limiting for Stepping Motors……Page 1096
10.10 Microstepping……Page 1109
10.11 Brushless DC Motor Drive Schemes……Page 1113
10.12 Motor Drive Electronic Commutation Patterns……Page 1135
10.13 Performance Characteristics of BLDC Motors……Page 1138
A……Page 1157
B……Page 1159
C……Page 1160
D……Page 1163
E……Page 1164
F……Page 1166
H……Page 1167
I……Page 1168
J……Page 1169
L……Page 1170
M……Page 1171
N……Page 1173
O……Page 1174
P……Page 1175
R……Page 1176
S……Page 1178
T……Page 1181
V……Page 1183
Z……Page 1184