Electric Motor Control

Stephen L. Herman was an electrician and proficient instructor with over 30 years of practical experience, and was known for his reader-friendly approach. A seasoned author, Mr. Herman wrote leading books on electricity and mathematics that are popular with students and instructors alike. For two decades, Mr. Herman served as lead instructor for the Electrical Technology Curriculum at Lee College in Baytown, Texas, where he received an Excellence in Education Award from the Halliburton Education Foundation. He also taught at Randolph Community College in Asheboro, North Carolina, for nine years and helped pioneer an electrical curriculum for Northeast Texas Community College in Mount Pleasant, Texas. His additional publications include "Electric Motor Control," "Electricity and Controls for HVAC/R," "Industrial Motor Controls," "Understanding Motor Controls," "Electronics for Electricians," "Alternating Current Fundamentals," "Direct Current Fundamentals," "Electrical Studies for Trades," "Electrical Principles," "Experiments in Electricity For Use with Lab Volt Equipment," "The Complete Laboratory Manual for Electricity" and "Practical Problems in Mathematics for Electricians."

• 1. General Principles of Electric Motor Control.2. Fractional and Integral Horsepower Manual Motor Starters.3. Magnetic Line Voltage Starters.4. Symbols.5. Interpretation and Application of Simple Wiring and Elementary Diagrams.6. Push Buttons and Control Stations.7. Relays.8. Contactors.9. Timing Relays.10. Pressure Switches and Regulators.11. Float Switches.12. Flow Switches.13. Limit Switches and Proximity Control.14. Phase Failure Relays.15. Solenoid Valves.16. Temperature Switches.17. Two-Wire Controls.18. Three-Wire and Separate Controls.19. Hand-Off-Automatic Controls.20. Multiple Push Button Stations.21. Interlocking Methods for Reversing Control.22. Sequence Control.23. Jogging (Inching) Control Circuits.24. Time-Delay, Low-Voltage Release Relay.25. The Motor and Starting Methods.26. Primary Resistor-Type Starters.27. Autotransformer Starters.28. Part Winding Motor Starters.29. Automatic Starters for Star-Delta Motors.30. AC Solid-State Reduced Voltage Controller.31. Controllers for Two-Speed, Two-Winding (Separate Winding) Motors.32. Two-Speed, One-Winding (Consequent Pole) Motor Controller.33. Four-Speed, Two-Winding (Consequent Pole) Motor Controller.34. Wound Rotor Motors and Manual Speed Control.35. Push Button Speed Selection.36. Automatic Acceleration for Wound Rotor Motors.37. Automatic Speed Control for Wound Rotor Motors.38. Solid-State Adjustable Speed Controller for AC Wound Rotor Motors.39. Synchronous Motor Operation.40. Push Button Synchronizing.41. Timed Semiautomatic Synchronizing.42. Synchronous Automatic Motor Starter.43. About DC Motors.44. Use of Reduced Voltage for Starting.45. Across-the-Line Starting.46. Compensating and Definite Time Control Starting.47. Solid-State Adjustable Speed Control.48. Plugging.49. Electric Brakes.50. Dynamic and Regenerative Braking.51. Electric and Electronic Braking.52. Direct Drives and Pulley Drives.53. Gear Motors.54. Variable-Frequency Mechanical Drives.55. AC Adjustable Frequency Drives.56. Magnetic Clutch and Magnetic Drive.57. DC Variable-Speed Control-Motor Drives.58. Programmable and Motion Control.59. Motor Startup and Troubleshooting Basics.60. Troubleshooting Techniques.