Electric Motors and Drives

Electric Motors and Drives Technical Manual

Table of Contents

Section Title Page
Motor Specifications
1.1 Nameplate 1
1.2 Insulation Class 3
1.3 Enclosure Type 11
1.4 Temperature Class 19
1.5 Mounting 30
1.6 Manufacturer’s Identification Number 51
1.7 Terminal Markings 55
1.8 Motor Design 67
1.9 Types of Duty 76
General Characteristics
2.1 System Nominal Voltage 103
2.2 Voltage 104
2.3 Power Factor 112
2.4 Efficiency 113
2.5 Speed 118
2.6 Vibration Characteristics and Balancing 119
2.7 Bearings 141
2.8 Torque 170
Asynchronous Motor Starting Systems
3.1 Starting Methods 175
3.2 Single-phase Motor Starting 187
Motor Protection and Coordination
4.1 Motors Protection 193
4.2 Protection Against Short Circuits 194
4.3 Protection Against Overload 203
4.4 Multifunction Relays 212
4.5 Motor Circuit Breakers 215
Motor Starter Co-ordination
5.1 Concepts 219
5.2 Solutions 220
5.3 Motor Overload Protection 229
5.4 Terminology 241
Motor Efficiency
6.1 Repair-Replace Decision Model 246
6.2 Premium EfficiencyMotors 262
Installation, Testing, and Maintenance
7.1 Installation and Maintenance 273
7.2 Description of Routine Tests 309
7.3 Recommended Winding Tests 321
7.4 Other Tests 322
7.5 Motor Starting Capabilities and Considerations 323
7.6 Maintenance and Reliability 328
7.7 Maintenance Programs 332
7.8 Machinery Condition Monitoring 334
7.9 Maintenance Planning 338

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