e-book 

Basic motor control

"This readily accessible online resource was developed for anyone who has interest in, or works with, AC motors and their associated motor control equipment. Whether you are an electrical apprentice learning about the subject in school or a seasoned journeyperson installing equipment in the field, you will find it easy to navigate through the descriptive text, original diagrams, and explanatory videos to find the exact information you are looking for"--BCcampus website.