After reviewing the basic theory of electricity and motor operation, we will look at the types of conventional motors in use today as well as how phase converters can be applied to single-phase circuits.

We will then review the characteristics of electric motors including speed, slip, torque, and efficiency. The various methods of starting single-phase induction motors are also reviewed.

Next the construction of a written-pole motor is reviewed, and the methods of writing the poles are discussed. The three operating modes of a Written-Pole motor: start, transition, and run mode are reviewed. Finally the operational benefits of a written-pole motor are reviewed.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

After taking this course the learner should:

• Know the difference between single-phase and three-phase motor applications
• Understand the basic operation of an induction motor
• Know the fundamental parameters that describe the characteristics of an electric motor
• Understand how a Written-Pole motor “writes” the poles
• Understand the three operating modes of a Written-Pole motor
• Know how a Written-Pole motor is affected by momentary power interruptions and
• Understand the benefits of using a Written-Pole motor