Will A Dimmer Switch or Transformer Control An Induction Motor's Speed: 038

Explaining and demonstrating how a dimmer switch, a Auto Transformer (Variac) and a VFD (Variable Frequency Drive) affect an induction Motor. This is a frequently requested video.

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Watch the Whole Series Here.

   • Introduction To Motors Series (for Be...  

If you want to chip in a few bucks to support more content like this, please visit my patreon page.

  / jeremyfieldingsr  

My website www.jeremyfielding.com
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Technical Notes and Corrections
1. The VFD is a single phase to three phase VFD. It creates the other phases, and controls the speed.

2. Several people have left this video and immediately searched for a single phase VFD. I think they mistakenly thought I was saying this item doesn't exist. But the point was only that they are rare for a reason. They are only safe to use with a few special types of single phase induction motors without start windings that must be disconnected. The "rareness" of the motor makes the controller rare. They certainly exist, but you should not use them with the typical induction motor described in the video.


Resources used in this series
Video references
AC Motors
   • AC MOTORS  

Motor Basics (three phase)

   • Видео  

AC Motors and Generators

   • AC MOTORS AND GENERATORS  

DC Motors and Generators

   • DC MOTORS AND GENERATORS  

Brushless DC Motors and Brushed DC Motors Explained
   • Brushless DC Motors and Brushed DC Mo...  

What is Ground

   • What is Ground? Earth Ground/Earthing  

What is electricity

   • Видео  

How to read a schematic

http://rimstar.org/science_electronic...

   • How to Read a Schematic  

Websites

http://www.studyelectrical.com/2016/0...

http://www.leeson.com/TechnicalInform...

http://www.johnsonelectric.com/en/res...
motors/principle-of-operation

http://rimstar.org/science_electronic...

http://www.usmotors.com/TechDocs/Elec...
Induction motor as a Generator
http://www.usmotors.com/TechDocs/ProF...

Books
Single -Phase Motor series number 723 by Edward Amrein
Not on amazon.

Amazon affiliate links

DC Theory by NJATC
http://amzn.to/2vMRwDn

AC Theory (get the used one, don’t spend $100) by NJATC
http://amzn.to/2wjgaNA

Three Phase Motors Series number 724 by Edward Amrein
http://amzn.to/2fUo217

Innova Multimeter 3320
http://amzn.to/2x0wQ9T

Tachometer RPM gauge
http://amzn.to/2x35Bv6