Course Number: SEM-E-2015

Length of Course: 2 hours – Several topics can be combined to provide up to an 8 hour seminar session

Seminar Location: This seminar is available for on-site training

In How to Start and How to Stop: AC/DC Motor Control, you’ll learn …


  • Motor starting techniques or what makes motors run
  • How various starters and controls are used and applied
  • Reduced voltage starting techniques, including soft starts
  • How variable frequency drives (VFDs) work and where they are used


This interesting and unique seminar is designed to show how many types of motors are turned on and off. While it may sound elementary, this basic study introduces concepts that reach far into many engineering disciplines, and it deals with subject matter that is often overlooked in our educational system. Electrical engineers will gain a deeper understanding of how motors are controlled and engineers from other disciplines will get an idea of the problems faced by the people responsible for making their facilities and plants run properly. This seminar will, in effect, help engineers understand each other’s particular problems.

It would be impossible, of course, to discuss all the different motion control devices, but we will attempt to provide a comprehensive overview of the most common devices in the industrial world. We will look at both alternating current motors and direct current motors, examining the ways to start and stop them. More specifically, you will become familiar with shunt wound starters, synchronous motor starters, induction motor starters, across the line motor starters, Wye Delta starters, and many more. We’ll also discuss reversing techniques and various electronic techniques for controlling motors. Schematic drawings and diagrams included in the presentation will help you understand how each of these devices work.

Requiring very little math, this webinar is an excellent fundamental program which explains the inner workings of various kinds of starters and speed controls.

Take away and learning objectives

This course teaches the following specific knowledge and skills:

  • Motor starting techniques or what makes motors run
  • The use and application of various National Electrical Manufacturers Association (NEMA) starters and controls
  • Reduced voltage starting techniques
  • Variable frequency drives (VFDs): how they work and where they are used

Speak to a Representative to Schedule a Seminar

For more information contact:
Ken Hudspeth, General Manager
Phone 1-877-PDHengineer (1-877-734-3644)