Electric Motors: Energy Efficiency Reference Guide

Table Of Contents

  • 1 Introduction
  • 2 Motor Classification
  • 3 Operating Principles
    1. Major Parts
    2. Operation
    3. Motor Power and Torque
    4. Torque-Speed Characteristics of Motors
  • 4 AC Motors
    1. 3-Phase Induction Motors
    2. Squirrel Cage Motors
    3. Wound Rotor Induction Motor
    4. Single Phase Induction Motors
    5. Split Phase Motors
    6. Capacitor Motors
    7. Shaded Pole Motors
    8. Synchronous Motors
    9. Hysterisis Motor
    10. Universal Motors
  • 5 DC Motors
    1. Separately Excited DC Motor
    2. Series Field DC Motor
    3. Compound DC Motor
    4. Permanent Magnet DC Motors
  • 6 Advanced Motors
    1. Electronically Commutated Motor (ECM)
    2. Switched Reluctance Motor (SRM)
    3. Permanent Magnet Motors
    4. Other Advanced Motors
  • 7 Motor Selection
    1. Electrical Supply Considerations
    2. Motor Considerations
    3. Driven Load Considerations
    4. Speed
    5. Starting and Stopping
    6. Custom
    7. Environmental Factors
    8. Physical Factors
    9. Efficiency and Economics
  • 8 Motor Controls
    1. Motor Protection
    2. Motor Starting
    3. Motor Stopping
    4. Motor Speed Control
  • 9 Maintenance
    1. Common Failure Modes
    2. Maintenance Frequency
    3. Bearings
    4. Vibration
    5. Insulation
    6. VFD Bearing Failure
    7. Grounding
  • 10 Repair or Replace?
  • 11 High Efficiency Retrofit
    1. Motor Resizing
    2. Speed Adjustments
    3. Load Adjustments
    4. Power Factor
  • 12 Recommended Web Links
  • 13 Glossary
  • 14 Bibliography