An introduction to Variable Frequency Drives. How three phase motors work, how VFD's work, and what types of applications are they used for. For more information visit www.eaton.com/vfd
Awesome and easy to understand. I'm a mechanical engineer that deals with lots of electronics but don't have a solid understanding of the magic pixies that make up electronics. You provide an education in a way I can understand. Thank you. Wish more professors would teach like this. Reading and understanding books is a awful and slow challenge for me because of dyslexia that was never seen in elementary school (they didn't look for things like that in the 1970's). Videos help many such as myself that learn visually.
@irtazaaliarab944
3 ай бұрын
Bionic reading try out
@satishpp1
3 жыл бұрын
The narrator explained VFD basics very clearly.
@willykitheka7618
5 жыл бұрын
Holy crap!!! The internet can be a important source of learning! This is VERY VERY USEFUL. Thanks for sharing!
@CosmicNihilist
2 ай бұрын
this is probably the best technical video I've ever set my eyes on, the communicator explains VFD with passion like his life depends on it woow Bravo.
@charlesdouglas9019
7 жыл бұрын
Thank you for this video! I've heard so many people talking about VFDs at work. I thought it would be a much more difficult concept to learn before seeing this video. It was so easy to understand! The real world example (changing frequency to a ceiling fan) helped me understand exactly what was going on! Excellent video!
@enriquecarmona6498
7 жыл бұрын
Great, good deal bro. VFDs have a plethora of settings a have some with over 120, but this is a very basic intro. Besides they have a lot of internal components that might get damaged if calibrated incorrectly.
@oscar27ization
2 жыл бұрын
It is a bit more complicated than what he explained
@charlesdouglas9019
2 жыл бұрын
@@oscar27ization is it? What are some other things I should learn about VFD: terms and definitions I know to begin my deep-dive search?
@nikkmer
7 жыл бұрын
we need these kind of channels on youtube
@Dannzegos
5 жыл бұрын
The best VFD training I have seen thusfar! Thank you!
@avivides9688
Жыл бұрын
Probably one of the most clearest and simply put explanations on VFD...Great job guys!
@jasperfatty4915
7 жыл бұрын
Holyshit!!!! I actually learned something from the Internet...why isn't school this easy.
@defytyrantsofmississippi2198
7 жыл бұрын
jasper fatty complication is simplicity misunderstood.
@marcematt2214
5 жыл бұрын
Because schools are business in a way they can careless if you learn or not they just look the money & then of course politics
@SamirElias82
5 жыл бұрын
@@marcematt2214 I don't think what you said is necessarily true.
@Lwhchris
5 жыл бұрын
The people behind these videos are professionals on this field, of course they would teach and explain better in particular topics of their field.
@gregoryprice2593
5 жыл бұрын
Schools don't have to compete for your attention by focusing on what is best for you. They're in the business of making legislators/funding sources happy.
@carmine313
7 жыл бұрын
Learned about this technology when i started working for the rail road. AC propulsion was replacing DC traction power. But you guys teach it better!
@virdesai1832
8 жыл бұрын
Now there's a proper video for technically challenged people like me!!! Great work....thanks a lot
@vizmohanan
7 жыл бұрын
The best tutorial on VFD. \m/
@ernestosastre7555
7 жыл бұрын
Agreed, I came to understand the DC-AC inversion and at 8:00 he makes it a lot more understandable.. Yet I don't get why the motor sees that conversion as a sinwave equivalent(and because it is dumb is not enough to account for it)
@lastnameavailableok
7 жыл бұрын
1 thing he didnt really explain is that was the on/off square wave VOLTAGE pulses to motor. Simply when you have a resistance (motor windings) and you apply voltage to a resistance, you get a current drawn by the load (motor). Because the voltage on/off pulses are so quick (microseconds, not even milliseconds), the motor cant tell that the voltage is going on and off so quick and continues to draw a near sinusoidal CURRENT and therefore rotate. As voltage stays on for more and more time, the current drawn reaches its peak, then voltage on/off time (mark/space) is reduced again, the current drawn starts to drop to zero, then the negative bus voltage is switched on to draw the negative current. The sinusoidal 'sinewave' shown over the square wave in video was the CURRENT drawn by the motor. Reducing the voltage on/off times reduces current frequency, which is directly related to motor speed, eg; 10Hz - 60Hz current draw.
@enriquecarmona6498
7 жыл бұрын
+Ernesto Sastre, it seems like the it's no longer a sine wave anymore. It's like a digital signal or binary code ( varying intensity within the - or the +) so this trick kind of fools the motor into start spinning. perhaps if I attached mi oscilloscope I'd be able to see a squarish sine signal (well sort of) genius. Hit replay and see if I make sense.
@enriquecarmona6498
7 жыл бұрын
+lastnameavailableok One 60 Hertz means that the current changed 60 times in one second + to -, back and forth. One Hertz is 1/60th of second. If the VFD was capable of handling kHz or MHz then, yes it would be thousandths or millionths of a second.
@MD-cd7em
5 жыл бұрын
@@lastnameavailableok GOOD EXPLANATION!
@dirtbikenrcman
4 жыл бұрын
this really shines a light on to why manufactures prefer to size a motor a bit larger. if my blower motor is rated @1 inwc they often times say for reliability reasons it should be less the .7 inwc even tho its rated at 1 inwc. building on this, heat is what kills a motor and my amp draw is significantly lower at .7 I have a lot less heat and in relative terms more airflow for the given amount of heat. super cool thanks for the video. I already knew how a VFD worked but i'm happy i watched it anyways because this is key information.
@skyaseman5561
4 жыл бұрын
As a RAC engineer I give u 5 stars for very useful information in this video. ⭐⭐⭐⭐⭐
@rubarb0406
7 жыл бұрын
What a great explanation of how a VFD functions!
@johngrubbs9494
6 жыл бұрын
Super tutorial! I am contemplating replacing a single phase motor on my drill press with a 3 phase motor and a VFD. I think I have a better understanding of torque vs. speed now. Thanks.
@ToutePuissance
4 жыл бұрын
Excellent 101 training, so clear and easy to fathom
@asatagafirllahalhamdulilla9030
4 жыл бұрын
Absolutely best presentation to understand the differences in single and three phase oin the motor. Great job guys thank you.
@Nickel-st3jw
7 жыл бұрын
Excellent! Highly explanatory and one of the best I have seen
@erikdavis_9178
7 жыл бұрын
Thanks a lot for this video. Definitely appreciate you going all the way from how a motor that would benefit from a VFD works and how, internally, the VFD works, to the applications of the device itself. Much appreciated.
@YourLocalIceMan
5 жыл бұрын
Nice video. We use a VFD for our ice rink. It's the coolest thing ever.
@scottwillis5434
5 жыл бұрын
Great video! At the next level up, it's not "positively" or "negatively charged". The alternating voltage applied results (with a lag) in a stator current and an alternating magnetic field in the stator. The changing magnetic field induces a corresponding field in the rotor. Which is more complex, and why they are talking about charge. 😉
@logannewport7487
5 жыл бұрын
I was trying to see if anyone was going to point this out. Glad to know some people still know what they're talking about!
@saopiseth77
6 жыл бұрын
This is a best video ever that make me more understandable about VSD. Thanks
@mikeag
6 жыл бұрын
Entertaining and very informative thank you very much for the wonderful explanation and demonstration of the technical function of VFDs.
@MarkBrantner
14 сағат бұрын
Great Refresher Course! Kudos on the Humor.
@dsnineteen
Жыл бұрын
Great video. Disco Tesla was just what I needed this morning.
@carterdjohnson9673
5 жыл бұрын
Very good video, however, don't forget a VFD is the most expensive way to save energy dollars on motors for a facility or home, in the end, we are talking about reducing demand charges which is the reduction in the electric bill. Reducing electric charges can be done in a number of ways 1 - Schedule the time when large motors will run, generally moving those operations to later periods say, late after to evening, 2 - hard start kits, which are a large capacitor place at the motor being started reducing in-rush draw and reducing demand on the electrical system, 3 - VFDs, however, make sure all motors with VFD's are inverter-duty or change the standard motors to ECM type which will have a cost saving also.
@jimsvideos7201
3 жыл бұрын
This video is pretty cheeky, particularly for so large a company. That's an observation, not a complaint.
@slovokia
7 жыл бұрын
Never thought I'd see Tesla's image combined with a disco mirrored ball :-)
@lechimbelismelis9181
3 жыл бұрын
Motors are dumb!!! Hahaha 🤣 cool video!!! I’m an experienced electrician but I always watch this video, it makes me laugh and it’s always good to go back to the basics once in a while.
@johnlhoffmanjr8158
4 жыл бұрын
Excellent! VFDs are widely used in the oil and gas industry!
@miguelteixeira3163
6 жыл бұрын
Best explanation I found on the internet after hours of searching! Thank you very much!
@GarysBBQSupplies
6 жыл бұрын
Best explanation of a VFD EVER. Thanks.
@sunshine7453
7 жыл бұрын
Thank you for showing the reason why VFD save $$$ and very clearly!
@HillbillyRednecking
7 жыл бұрын
This explains why the control boxes for the huge ventilation fan motors at my Counties welding shop are soo big, I thought the control boxes for the fan were just for starting and shutting off the motors, then the instructor said the control boxes were for how much air is being sucked out and it senses what the air pressure in the room is, they're huge 3 phase motors maybe 20 or so HP, so how can you control the speed of huge 3p motors, with huge VFD boxes
@ogbeiwichas1761
6 жыл бұрын
This tutorial is unbeatable and unprecedented. Thanks.
@jimdamiani1823
4 жыл бұрын
One of the best informational videos I have seen in a long time and clearly described. Wow!!
@arvinmistry9744
Жыл бұрын
Excellent explaination thank you very much,
@marcematt2214
5 жыл бұрын
Oh@ my God you're great I'll watch your video again & again thank you! Sir
@rbyledbal
5 жыл бұрын
SIMPLY AWESOME!! It all makes sense to me now.
@soapy_toast
5 жыл бұрын
this was a Very Finely Detailed video.
@officialnicko
5 жыл бұрын
this is the best video about 3 phase... hands down
@dinulwijetunge5917
2 жыл бұрын
Well done mate got a proper outlook on how a pwm code in an IGBT just cheats it’s way into mimicking the sine wave through continuous but yet discreet shots of durations altering frequency and voltage.. will join training duly..
@timothypb
4 жыл бұрын
Yea I learned and got clarity on PWM process. Makes me want to build my own VFD.
@isrbillmeyer
3 жыл бұрын
Well here is the market that will need this... Household Generator gives e.g. 57Hz where the Inverter needs grid input of 50Hz. So the Inverter rejects the input from the Generator. A Unit that can convert Household Generator output to ~50Hz (or what the Inverter in other areas of the world require) will have a good market size if it is not too expensive.
@griffmustard
6 жыл бұрын
You killed me with the Tesla impression........LOL!!!
@dickyrock1
4 жыл бұрын
Yep brilliant video, I've watched heaps that were nowhere close to this. Well done
@mendonsix
4 жыл бұрын
"The motor is dumb..." Great video, thanks!
@jeffking29
5 жыл бұрын
2017 Revit MEP Electrical......loving it!! Great video Eaton/Westinghouse :-)
5 жыл бұрын
Very good understanding and explation of VFDs
@josecunha731
6 жыл бұрын
Excellent and very comprehensive tutorial.
@RickShaw76
6 жыл бұрын
Althoug i m not new to this stuff this is a absolutly great explanation video
@joehamilton5467
3 жыл бұрын
Thanks...keep them coming...
@TupmaniaTurning
3 жыл бұрын
Bueatifully explained! Thanks.
@sohailjanjua123
2 жыл бұрын
Hi, I like your lecture. Thanks
@ramiterreinnovations8359
Ай бұрын
Very detailed. Thankyou... Do you video sir how to troubleshoot overheating vfd
@terrydavis9311
7 жыл бұрын
Very good. Thanks for making it available.
@Ink.johnny
2 жыл бұрын
Great video.
@zenebehagos3537
4 жыл бұрын
dear, sir, it is an invaluable lecture and go-ahead to share with us, thanks a lot.
@langalethumgobhozi1770
6 жыл бұрын
Great work, I like your videos. Inverters are also converters...rectifiers and inverters are comprehensively called converters. IGBTs are used because they've got an additional p-layer in their internal structure which is responsible for conductivity modulation, making them suitable for applications with higher power rating...MOSFET for example have better switching frequency capabilities than IGBTs. The static power semiconductors switches used are really a function of your ratings. In sinusoidal pulse width modulation, you wanna switch as frequently as you can to shift the harmonic content to a higher order spectrum and have the fundamental component approximate the sinusoid to as close as it practically gets.
@thecreator2488
6 жыл бұрын
Very good explanation Sir excellent video👌
@haiderhasanakbari7849
8 жыл бұрын
Great video great explanation .. thumbs up :)
@strawmansam
4 жыл бұрын
"It's not perfect, but motors are dumb.." Hahaha that was hilarious
@mokoepa
Жыл бұрын
😂 😂 😂 😂 😂
@brlinrainf
2 ай бұрын
the motors are dumb really, because they are dead objects and not living creatures😂😂😂
@Adhithya2003
Жыл бұрын
Brilliant Video. What a gentle introduction to VFD 🫡🫡
@javierferrer4634
6 жыл бұрын
Nice video about function of a VFD
@hungrynapps
7 жыл бұрын
perfect usage for this .. is a elevators .. most efficient tech we used so far
@Ric_James
3 жыл бұрын
Great explanation of everything!
@leviandhiro3596
4 жыл бұрын
beautiful video
@dannyblain3210
4 жыл бұрын
well done Eaton team! gotta luv the disco ball!
@ponsaelectric322
7 жыл бұрын
amazing explanation how three phase motors work. very helpful !!! :)
@cameronnpd7466
7 жыл бұрын
awesome video. Super easy to understand
@hsuan-jenhankwang2448
10 ай бұрын
Exceptional videos, thank you
@NinjaTruther
7 жыл бұрын
hands down the best vfd video!
@rossy9549
5 жыл бұрын
Don't forget to make sure you have shaft grounding rings for any motor on a VFD.
@regmccormack3157
6 жыл бұрын
Great video very informative
@driveconstructor5112
5 жыл бұрын
If someone would like to get some practice with sizing drive systems, try the DriveConstructor online course
@amessman
6 жыл бұрын
Absolutely amazing video! Thanks!
@nithin.s9981
6 жыл бұрын
Great explanation. Thanks for easing it out!
@Martina_Vintage_Motorcycles
4 жыл бұрын
Very good video, although I’m well versed in everything you covered this would be an awesome video for someone just starting out, I wish this type of thing was available to me 25 years ago
@Visionery1
5 жыл бұрын
Nicely explained! You have an interesting way of writing an 'S'. :)
@MsLia32
7 жыл бұрын
amazing video on power electronics
@amarawague70
2 жыл бұрын
Have anyone noticed the misspell of " TELSA"? Great explanations by the way. Thanks
@pwnmeisterage
5 жыл бұрын
What sort of (in)inefficiency is caused by the VFD itself? Those converter/inverter/switching processes all consume power and all introduce power losses. I'm guessing it's all about right-sizing the device for the application (and the budget) to maximize real savings.
@darkforcex7362
4 жыл бұрын
Not really Considering it's all based on voltage, voltage not used is money saved. You cant dissipate voltage without a use. However, incorrect amperage use will use excessive voltage and burn out motor coils. But breakers and fuses regulate this.
@jamesyager7374
3 жыл бұрын
Thank you well done training video.
@guelorirankunda2377
6 жыл бұрын
Thank you very much, nice explanations ... you're the best
@abhinabapramanick2644
5 жыл бұрын
Very nice Explanation! Thanks
@Falasha28
6 жыл бұрын
Very nice easy to follow tutorial.
@carlubambi5541
Жыл бұрын
No Tesla did not invent the 3 phase motor A polish German invented the 3 0hase 3 wire system we use today ,Not Tesla .the first AC single phase motor was invented by an italian .Tesla came up with a 6 wire polyphase system .Feel free to correct me if I am wrong
@fredstrattonjr.4043
5 жыл бұрын
Very good and easy to follow.
@bdelozier07
7 жыл бұрын
Love this video. Helped me in a way I could understand!
@MD-cd7em
5 жыл бұрын
YOU ARE A GOOD COMMUNICATOR!
@Th3Su8
7 жыл бұрын
Good explanation of the inner workings of a VFD. However, to say that the VFD outputs AC voltage would be technically incorrect. It is a square wave. I know I am being nit picky.
@omargarcia4401
4 жыл бұрын
Great introductory video
@uzialoush6108
6 жыл бұрын
So smart! Loved it.
@akhilgirijan6504
5 жыл бұрын
Excellent video. Thanks.
@mitchilin803
7 жыл бұрын
Really awesome video. Thanks
@Popcorncedar
5 жыл бұрын
Pretty good little video. Nice work.
@trebombs4life
5 жыл бұрын
this video explains very well how brushless DC motors work. in terms of the mosfets right?
@madhanagopalsurenderbabu8182
4 жыл бұрын
great explanation
@arun44822
8 жыл бұрын
THANKS FOR VFD EXPLANATION. WHAT I WOULD LIKE TO KNOW TT WHEN FREQEENCY CHANGES CURRENT THROUGH MOTOR ALSO CHANGES. WHEN FREQ, IS LOW LX IS LOW ALSO BACK EMF IS ALSO LOW THUS INCREASE IN CURRENT & MAY BURN THE MOTOR. HOW VFD DEALS WITH IT?
@PeteVree
8 жыл бұрын
From what I understand, as the frequency is reduced, the Xl is also reduced (Xl=2¶fL). This would cause too much current to flow on the windings. So, the drive reduces the output voltage to reduce that excessive current. As the frequency is increased, Xl also increases, which would reduce current flow on the windings. To maintain current flow, and therefore torque, the drive increases the output voltage to account for the increased Xl. This way the drive can provide full torque from low speeds to full rated speed.
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