2017-08-05

[public] 410K views, 10.1K likes, dislikes audio only

Jeremy Fielding

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.

If you want to chip in a few bucks to support these projects and teaching videos, please visit my Patreon page or Buy Me a Coffee.

https://www.patreon.com/jeremyfieldingsr

https://www.buymeacoffee.com/jeremyfielding

Social media

Instagram https://www.instagram.com/jeremy_fielding/?hl=en

Twitter https://twitter.com/jeremy_fielding

My websites https://www.jeremyfielding.com

https://www.fatherhoodengineered.com

My other channel - Fatherhood engineered

https://www.youtube.com/channel/UC_jX1r7deAcCJ_fTtM9x8ZA

Watch the Whole Series Here.

https://www.youtube.com/playlist?list=PL4njCTv7IRbw82wJBDt3empXSMzYa7sUB

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

https://www.patreon.com/jeremyfieldingsr

My website www.jeremyfielding.com

https://www.instagram.com/jeremy.fieldingsr/?hl=en

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

https://www.youtube.com/watch?v=_-WQZ1SGqi4&list=PL4njCTv7IRbyKgThEd0aBaqdLx3koCpCs&index=2

Motor Basics (three phase)

https://www.youtube.com/watch?v=w5ugeGOOjso&index=6&list=PL4njCTv7IRbyKgThEd0aBaqdLx3koCpCs

AC Motors and Generators

https://www.youtube.com/watch?v=07uXnc1C5CA&list=PL4njCTv7IRbyKgThEd0aBaqdLx3koCpCs&index=9

DC Motors and Generators

https://www.youtube.com/watch?v=OpL0joqJmqY&index=10&list=PL4njCTv7IRbyKgThEd0aBaqdLx3koCpCs

Brushless DC Motors and Brushed DC Motors Explained

https://www.youtube.com/watch?v=C1-klL3B9LU&index=1&list=PL4njCTv7IRbyKgThEd0aBaqdLx3koCpCs

What is Ground

https://www.youtube.com/watch?v=zLW_7TPf310

What is electricity

https://www.youtube.com/watch?v=FpXvtEQilEk

How to read a schematic

http://rimstar.org/science_electronics_projects/electronic_symbols_for_schematics.htm

https://www.youtube.com/watch?v=_HZ-EQ8Hc8E

Websites

http://www.studyelectrical.com/2016/02/shaded-pole-induction-motors-working-construction.html

http://www.leeson.com/TechnicalInformation/sphase.html

http://www.johnsonelectric.com/en/resources-for-engineers/ac-

motors/principle-of-operation

http://rimstar.org/science_electronics_projects/electronic_symbols_for_schematics.htm

http://www.usmotors.com/TechDocs/Electrical-References

Induction motor as a Generator

http://www.usmotors.com/TechDocs/ProFacts/Induction-Generator

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