All electrical engineers of the world should get together and pay this gentleman a million dollars a month to explain every topic of every course needed for a master's degree. Then, we could retire all other living professors, starting from my lazy professors.
Man, speaking as a person from a non-english speaking country, I must congratulate you for the very paused and clear pronunciation of the words. Beyond that, the high value content and the masterful way in which the subject was explained! Congrats!
I am working in ABB as drives quotation specialist but believe me I have not come across such detailed explanations on THD/TDD and mitigation options... hats off to you sir!
yaskawa is very sincere manufacturer , even in eighties i have seen a yaskawa motor which did not require any regular maintenance at that time compared to other brands . liquid starter never gave trouble for 8 years in a row , and was free from dust in our heavy dusty environment @ a cement plant .
OMG !!! after a long time struggling and searching, this is the only video that answered my question and gave good understanding of it. Million thanks to him. So, nice lecture (but not really the way of traditional lecture though). Once again thanks a lot.
Such a phenomenal video. I have more questions now than when I started the video, but that's because the topic was covered so well, that it made me realize how much more I need to know about Harmonics, IGBT's, EMI Filters, etc. I am particularly interested in how the drive provides regeneration @ 21:30 Thanks so much for providing us with such great instructional videos.
This explanation was so beautifull that I lerned something about harminics mitigation in large power generators. And i was looking for harmonic distortion in audio amplifiers. Great work indeed. Really interesting. Thanks.
A well done work is timeless. 9 year old instructional video and still awesome! The TDD table meant for point of common coupling was indeed used by PQ specialists within load side facilities because they give a good reference point. You just need to be aware of how you interpret the results.
A correction @ 3:00. Not all linear loads draw a sinusoidal steady-state current when the voltage is sinusoidal. As an example, a resistor whose resistance is a function of time (but not of voltage nor current), is a linear resistor, yet it will draw non-sinusoidal current when a sinusoidal voltage is applied. The most accurate and general definition of a linear load/device/system is that whose relation between voltage and current follows the superposition principle.
"What kinds of harmonics do variable speed drives create? Well, it depends." Now that is definitive for you! How's about this: Just like with other loads, variable speed drives distort the input wave causing harmonics. The ANGLE that the input wave was at when it impacted the distortion determines which harmonics are created and the pattern of harmonics created in the spectrum. This pattern is known as the Harmonic Signature, and the Bullard Harmonic Solution can be used to predict the harmonic signature based only on the angle that the incoming sinusoid was at when it impacted the distortion. This is Law #2 of the Bullard Laws of Harmonics. Different devices (VFD, fluorescent lights, rectifiers, etc) have distortions lurking at various voltage thresholds and when the incoming wave impacts those thresholds, it distorts the wave and the angle at which that happens determines the harmonic signature. God did not anticipate which electronic devices mankind might invent and then devise a set of harmonics for each and every human invention.
ok ok, i watched this video 4 years ago and really like this drive harmonics video... however, what new drives are there in 2020, not needing reactors and the like? thanks...:)
To purchase AFE (Active Front End) and active filters, please visit the Yaskawa website and select the nearest service provider in your area using the following link: www.yaskawa-global.com/company/profile/global
Hands down the best explanation of harmonics on the internet for all electrical disciplines & skill levels. Thanks Steve & Yaskawa!
Xoxo 😘
All electrical engineers of the world should get together and pay this gentleman a million dollars a month to explain every topic of every course needed for a master's degree. Then, we could retire all other living professors, starting from my lazy professors.
Agreed
Man, speaking as a person from a non-english speaking country, I must congratulate you for the very paused and clear pronunciation of the words. Beyond that, the high value content and the masterful way in which the subject was explained! Congrats!
such a professional presenter is highly required nowadays.
Thank you, sir, this was so informative and compact.
One of the best videos on TH-cam ever. Period!
Excellent tutorial! Very clear, concise, and precise. I wish more engineers would talk like this :)
Excellent presentation with a clear voice for non-native English speakers....Thank you!
I am working in ABB as drives quotation specialist but believe me I have not come across such detailed explanations on THD/TDD and mitigation options... hats off to you sir!
@Zaheer Ahmed Sir are you from ABB Bangalore?
OMG! Best explanation on power distortion!!!!! So simple, yet so elegant! Thank you so much for the upload!
Thank you, Training Manager, @ Yaskawa for teaching complex subject in simple language
Thank you for your insight. I have been forwarding the video to clients so that they can understand what they pay for.
yaskawa is very sincere manufacturer , even in eighties i have seen a yaskawa motor which did not require any regular maintenance at that time compared to other brands . liquid starter never gave trouble for 8 years in a row , and was free from dust in our heavy dusty environment @ a cement plant .
Steve must be one of the best instructers ever. No sleeping in his class.
Best Harmonics explanation for beginner !!!!! on internet world
What a magnificent description and presentation. Thank you.
OMG... Give that man a raise!
Best explanation on harmonics i have ever come across...amazing work
Listening to this with an epic musical score in the background makes it so much cooler.
You are the best tutor in the world.
OMG !!! after a long time struggling and searching, this is the only video that answered my question and gave good understanding of it. Million thanks to him. So, nice lecture (but not really the way of traditional lecture though). Once again thanks a lot.
Mr. Steeve your style of teaching is very excellent
I have seen 18 pulse drives in the mining industry where motors go up to or more than 33MW. Great lecture
"AFE uses IGBT to reduce THD in VFD, OMG!!" : Loved the part
Such a phenomenal video. I have more questions now than when I started the video, but that's because the topic was covered so well, that it made me realize how much more I need to know about Harmonics, IGBT's, EMI Filters, etc. I am particularly interested in how the drive provides regeneration @ 21:30 Thanks so much for providing us with such great instructional videos.
Thanks for your interest! Additional support and training options are available. Learn more: www.yaskawa.com/support-training
Pete vree you doing same thing this gentleman doing I mean teaching us science because of that thank you and keep going please
This explanation was so beautifull that I lerned something about harminics mitigation in large power generators. And i was looking for harmonic distortion in audio amplifiers. Great work indeed. Really interesting. Thanks.
Oscar for this guy plz
Best lecture ever
OMG
Agreed
A lot better lecture than my top university professor
Omg wat an amazing explanation., best TH-cam award goes to this ☝️
Best teacher I ever seen
Thanks for the training video and clarification of sound travel and electricity. Very informative.
Best Explanation and clearly mentioned all points....👏👏👏👏
Very nice and beautiful explanation to understand and to mitigate Harmonics. Thank you Sir,we expect more such analysis.,🙏
Very clear and easy to follow, great presentation style - well worth the watch (and re watch).
These educational videos are a great overview, thanks.
We are glad that you think so!
Complete and ideas flow very well. Thank you Yaskawa.
Unquestionably excellent quality. In India, any job possibility. Grateful to join yaskawa. Kudos
You're are a great lecturer.... Thanks yaskawa
A well done work is timeless. 9 year old instructional video and still awesome! The TDD table meant for point of common coupling was indeed used by PQ specialists within load side facilities because they give a good reference point. You just need to be aware of how you interpret the results.
Goat content. Fantastic. Very much appreciated sir!
Wonderfully presented!
Excellent presentation! Well done, with great visuals!
Thank you for this video.Great explanation hope we will get more videos like that.
Thanks for making this video. I found it very helpful!!
Excellent presenter and the material covers all
Best explained #PowerLearningChannel
Thanks for very clear, fluent and efficient explanation for Harmonics.
thank you very much for the great presentation.
Very good and clear presentation. I worked out most of this before seeing this vid - which would have made things a lot quicker!
Thank you Sir for your explanation about the harmonic problem in the network power system
Thank you... Perfect explications.... From Algeria...
A correction @ 3:00. Not all linear loads draw a sinusoidal steady-state current when the voltage is sinusoidal. As an example, a resistor whose resistance is a function of time (but not of voltage nor current), is a linear resistor, yet it will draw non-sinusoidal current when a sinusoidal voltage is applied.
The most accurate and general definition of a linear load/device/system is that whose relation between voltage and current follows the superposition principle.
Not time, but temperature
Rt= R0(1+alpha(t-t0))
@@tamilchelvanramasamy8733 That’d be non-linear, since temperature is a function of current.
Good and clear vision on Harmonics very useful
a very good brief on harmonics
Excellent trainer. Thanks a lot mate
Sir continue to electrical lecturer Ur teaching in excellent and better life students
Bro you didn't get it??? It's an advertisement of yaskawa. They are provided their own solution to mitigate harmonics generated by VFD
Nice and clear with proper reference
Great video, thanks for the upload.
amazing explanation skills.... thanks a ton for your class
Loved it ❤️
great comprehensive presentation !!
Excellent lecture for basic understanding
Excelente informacion, todo queda bastante claro.... thanks!
"What kinds of harmonics do variable speed drives create? Well, it depends." Now that is definitive for you! How's about this: Just like with other loads, variable speed drives distort the input wave causing harmonics. The ANGLE that the input wave was at when it impacted the distortion determines which harmonics are created and the pattern of harmonics created in the spectrum. This pattern is known as the Harmonic Signature, and the Bullard Harmonic Solution can be used to predict the harmonic signature based only on the angle that the incoming sinusoid was at when it impacted the distortion. This is Law #2 of the Bullard Laws of Harmonics. Different devices (VFD, fluorescent lights, rectifiers, etc) have distortions lurking at various voltage thresholds and when the incoming wave impacts those thresholds, it distorts the wave and the angle at which that happens determines the harmonic signature. God did not anticipate which electronic devices mankind might invent and then devise a set of harmonics for each and every human invention.
Brilliant video!
Thanks a lot.. this reminds me the old school!!!
Excellent steady explanation sir
Thank You
best explanation for harmonics.thankyou
Good presentation on harmonics.
Very good lecture
Thank you
The best harmonic explainantion❤
Very good information. Keep the videos coming.
Thanks for that. This is something very interesting.
as the lecture for the inductive motors, this one is as well very good. congrats:)
fantastic way to explain the invisible giant ................
Best representation ever!!!
Thanks from #PowerLearningChannel
Excellent
Excellent information , well done YEA
Wonderful lecture!
It's very Informative
Hi, I like your lecture
Very good explanation!
ok ok, i watched this video 4 years ago and really like this drive harmonics video... however, what new drives are there in 2020, not needing reactors and the like? thanks...:)
Very use full ..... Thank you..........
Amazing explanation sir
Thank you, sir. Very good video!
I am become a fan of this gentleman
Dear Sir , thank you for making me understand in detailed harmonics. I would like to know how to get AFE and active filters to purchase
To purchase AFE (Active Front End) and active filters, please visit the Yaskawa website and select the nearest service provider in your area using the following link: www.yaskawa-global.com/company/profile/global
7:52 and music theory teachers, as its the same concept, and i imagine where the term "harmonics" came from.
I appreciate this is the lesson about harmonic....
excellent explanation
Excellent lecture . Thank you
superb lecture ,can i get ppt of this lecture
t
Im using this video to help with drum and bass production and i actual understand what he’s saying haha
very good presentation
Very Nice
Learn a lot...Thanks sir
he is a genius !!
Hes my high school teacher
the good information for me! thanks
Is any training online course for electrical engineering