Introduction to DC Motor Theory

An introduction to DC motor theory.

Prerequisites

Knowledge of DC motor components and magnetic principles or review of the lessons, Introduction to AC Components and Motors and Introduction to DC Motors, is recommended.

Description

This is the seventh lesson in the iKNOW AC/DC Motor Theory Library. The lesson introduces participants to DC motor theory.

Objectives

Explain the effect of armature current on the main flux field and how it results in motor action. Explain the process of commutation and how it maintains direct current in a DC motor. Describe how the number of windings and commutator segments effects torque and mechanical power of a DC motor.