1. Engineering Technology Division
Power Plant Construction and QA/QC
Section 4.5 – AC Motors and Applications

2. Induction – Stator / Rotor Field - Induced
Section 4.5 – AC Motors and Applications
Overview
Motor Types
Induction – Stator / Rotor Field - Induced
Synchronous – Applied voltage
Variable Frequency -
Uses – moves Water, Air, Fuel
Bearings – Linear, Thrust, Lubrication
Insulation

3. AC Phases Section 4.5 – AC Motors and Applications
More stator poles, more speed
Torque (work) – difference between stator and rotor fields
More phases, more torque

4. Section 4.5 – AC Motors and Applications
Induction Motor

5. Section 4.5 – AC Motors and Applications
Induction Motor

6. Section 4.5 – AC Motors and Applications
Synchronous Motor

7. Section 4.5 – AC Motors and Applications
Variable Frequency

8. Section 4.5 – AC Motors and Applications
Motor Bearings

9. Motor Bearings and Lubrication
Section 4.5 – AC Motors and Applications
Motor Bearings and Lubrication

10. Questions?