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Preface | |
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Acknowledgments | |
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Introduction | |
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Single-Phase Motors | |
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Key Terms in This Chapter | |
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Introduction | |
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Nameplate Information | |
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Single-Phase Motors | |
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Rotating Magnetic Field | |
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Squirrel Cage Rotor Principles | |
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Split-Phase Motors and Slip | |
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Starting Winding Switches | |
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Capacitor-Start, Induction-Run Motors | |
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Other Capacitor Motors | |
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Shaded Pole Motors | |
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Universal Motors | |
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Summary | |
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Questions | |
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Three-Phase Motors and Generators | |
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Key Terms in This Chapter | |
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Introduction | |
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Three-Phase Power Generation | |
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Frequency | |
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Output Voltage and Current Control | |
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Generator Output Power | |
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Exciters | |
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Parallel Operation of Alternators | |
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Loss of Alternator Output | |
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Standby and Cogeneration Systems | |
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Three-Phase Motor Theory | |
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Motor Rotation Checkers | |
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Three-Phase Motor Connections | |
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Multispeed Motors | |
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Motor Design Letters | |
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Power Factor of Induction Motors | |
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Motor Efficiency | |
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Troubleshooting | |
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Summary | |
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Questions | |
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Basic Motor Control | |
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Key Terms in This Chapter | |
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Introduction | |
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Manual Controls-Controller Design | |
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Overload Protection | |
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Two-Wire Automatic Control | |
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Three-Wire Automatic Control | |
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Jog and Reversing Controls | |
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Overload Selection | |
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Fuse Protection | |
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NEC and Single-Phase Motor Applications | |
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Summary | |
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Questions | |
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Controllers, Relays, and Timers | |
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Key Terms in This Chapter | |
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Introduction | |
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Nema Contactors and Starters | |
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IEC Standards | |
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Pilot Devices | |
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Photoelectric Controls | |
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Proximity Sensors | |
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Enclosures | |
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Hazardous Areas and Safety | |
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Electromechanical Controls, Relays, and Timers | |
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Electronic Timers | |
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Solid-State Motor Control | |
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Contact Maintenance | |
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Summary | |
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Questions | |
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Three-Phase Motors, Controls, and Full-Voltage Starting | |
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Key Terms in This Chapter | |
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Introduction | |
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Manual Control | |
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Magnetic Control | |
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Reversing Three-Phase Motor Starters | |
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Sequence Control/Compelling Control | |
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Multispeed Controllers | |
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Programmable Controllers | |
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Electronic Speed Control | |
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Wye-Delta Starting | |
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Open/Closed Transition | |
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Part Winding Starters | |
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Phase Failure Relay | |
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Motor Control Centers | |
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Summary | |
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Questions | |
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Motor Acceleration and Deceleration | |
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Key Terms | |
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Introduction | |
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Reduced Voltage Starting | |
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Primary Resistor Starting | |
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Autotransformer Starters | |
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Solid-State Reduced Voltage Starting | |
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Synchronous Motor Starting | |
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Electrical Brakes | |
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Plugging Controls | |
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DC Braking | |
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Mechanical Brakes | |
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Summary | |
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Questions | |
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Motor Maintenance and Installation | |
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Key Terms in This Chapter | |
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Introduction | |
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Replacement Motors | |
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Bearings-Types and Maintenance | |
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Megohmmeters | |
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Growlers | |
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Lead Identification | |
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Delta-Connected Motors-Lead Identification | |
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Horsepower Testing | |
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Motor Efficiency | |
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NEC and Size of Feeders, Disconnects, and Controllers | |
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Disconnects, Controllers, Fuses, Branch Circuit Conductors, Overloads | |
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Summary | |
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Questions | |
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Special Motors | |
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Key Terms in This Chapter | |
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Introduction | |
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Wound Rotor Motor | |
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Repulsion Motors | |
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Synchronous Motors | |
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Permanent Magnet Motors | |
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Stepper Motors | |
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Hybrid Motors | |
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Torque Motors | |
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Summary | |
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Questions | |
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Power Distribution and Monitoring Systems | |
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Key Terms in This Chapter | |
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Introduction | |
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Transformers | |
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Voltage Transformation | |
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Transformer Design | |
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Transformer Operation | |
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Transformer Polarity | |
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Transformer Losses and Regulation | |
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Multivoltage Transformers | |
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Transformer Connections for Voltage | |
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Autotransformers | |
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Control Transformers | |
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Instrument Transformers | |
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Three-Phase Transformers | |
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High Leg or Wild Leg | |
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Transformer Nameplate | |
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NEC Requirements | |
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Single- and Three-Phase Line Drop | |
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Power Factor Correction | |
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Demand Meters | |
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Energy Management | |
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Summary | |
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Questions | |
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DC Motors, Generators, and Controls | |
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Key Terms in This Chapter | |
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Introduction | |
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DC Generation | |
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Armatures | |
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Series Generator | |
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Shunt-Wound Generators | |
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Compound Field Generators | |
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Armature Reaction | |
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Parallel Operation of DC Compound Generators | |
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DC Motors | |
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Speed and Direction Control | |
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Shunt Motors | |
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Permanent Magnet Motors | |
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Series Motors | |
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Brushless DC Motors | |
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Electronic Speed Control | |
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Manual Control of DC Motors | |
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DC Motors and NEC | |
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Summary | |
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Questions | |
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Wiring Diagrams | |
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Formulas | |
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Symbols | |
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Troubleshooting | |
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Glossary | |
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Index | |