AC and DC motors: Objectives

Learning goals:

1. Identify the basic parts of a DC motor and ex plain its operation.

2. Explain how to change the speed of a DC motor.

3. Explain how to change the rotation of a DC motor.

4. Explain the difference between series, shunt, and compound DC motors.

5. Identify the basic parts of a three-phase AC motor and explain its operation.

6. Explain how to change the speed of an AC motor.

7. Explain how to change the rotation of an AC motor.

8. Identify the basic parts of a single-phase AC motor and explain its operation.

9. Explain the difference between a split-phase capacitor-start, and permanent-split capacitor motors.

10. Use motor frame-size data to select new motors.

Introduction