Engineering Principles of Agricultural Machines 2nd Edition

Chapter 3
Electrical Power for Agricultural Machines 
45
Introduction...................................................................................................................45
3.1 
Motor Components............................................................................................. 45
3.2 
Motor Classifications.........................................................................................46
3.3 
Principles of Operation Of Induction Motors................................................. 47
3.4 
Types of Single-Phase Induction M otors........................................................49
3.4.1 
Split-phase induction motors..................................................................... 49
3.4.2 
Capacitor-start, induction-run m otors.......................................................50
3.4.3 
Two-value-capacitor, induction-run motors............................................. 52
3.4.4 
Repulsion-start, induction-run motors.......................................................52
3.5 
Three-Phase Induction M otors.........................................................................53
3.6 
Dual-Voltage M otors.........................................................................................54
3.7 
Torque-Speed Characteristics of Induction Motors.........................................56
3.8 
Motor Nameplate Information.........................................................................57
3.9 
Motor Starters ..................................................................................................... 59
3.10 Motor Enclosures............................................................................................... 59
3.11 Variable- Speed Electric M otors......................................................................59
3.12 Motor Efficiency................................................................................................ 60
Problems........................................................................................................................ 61
Simulation Problems.....................................................................................................63