Principles of Symmetrical Components part 2b

[@Generalpac]

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[@Generalpac]

Hey you guys, thanks for the feedback. For all our upcoming videos we won't add any music. Unfortunately, KZbin doesn't allow us to remove the music from previously uploaded videos. Thank you for your understanding. -GeneralPAC team

[@jishanshaikh8961]

Best explanation !!!!! even I Read many books I had not found this explanation!!!

[@_d4r1o_22]

Same!

[@momo-wq5cl]

Omg . The concept of adding all arrows to be Ia or Ib or Ic have not mentoined by most of the book. That makes it more easy to understand You are born to be a very good teacher

[@yao000104]

Good demonstratio,much better than my prof

[@JBrodo]

Thank you so much for this!! You are right, the source I was using for learning symmetrical components totally failed to mention that adding the three decomposed components equals the unbalanced system. I was so lost and literally said out loud, "I don't know what any of this means or why I am doing this!" Thank you so much!

[@Generalpac]

You're welcome! We always try to recreate the difficult concepts making them simpler to understand and love to pass on our knowledge in the easiest way possible. Therefore, we really need your help to continue maintaining valuable work. And this will only be possible by your support. Would you support us and be a patron? Visit patreon.com/generalpac to be our aid for this regard.

[@Generalpac]

In Power System Protection course we will cover the requirements needed to design protective devices and the applications of these devices through a schematic diagram. Furthermore, this course will analyze the effects of all types of faults in power system along with the easy hand on calculations. To develop your strong concept on fault analysis we will discuss how faults can be identified by analyzing waveforms. Lastly, you will learn the most tedious and complex theory of symmetrical components that are found in different types of faults. This module consists of six parts, each building upon your knowledge based on previous ones. Currently, we are offering 90% discount, join us before it ends: bit.ly/3ZXIkHl

[@dovosjhs]

You're the best...this is so helpful.

[@7SOON26]

That is awesome man, keep up the great work up

[@Generalpac]

Thank you for your appreciation. We're glad that you liked our videos. Stay tuned for more intuitive lectures! We are currently offering great discounts on our paid Power System Courses, you can have a look at those courses here: www.allumiax.com/learn

[@saadishah4742]

Excellent job man....worth watching it....keep it up and do share more and more ......highly commendable job

[@chrishamilton5137]

Thanks man, very helpful 💪🏾💯

[@امنيهصالح-غ9د]

It's very useful explanation, really thank you very much for your efforts

[@Generalpac]

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[@fathonizm]

It's easy to understand. So helpful. Thx

[@pratikshirke892]

Dude!thank you much for this

[@tamjidkabir1543]

Thank you sir! Great effort, hats off!!!

[@Generalpac]

Thank you for your appreciation. Knowing that our videos were helpful to you is indeed satisfying. :) Currently, we are offering great discounts on our paid courses, you can have a look at our course page here: www.allumiax.com/power-system-courses

[@rachidlougrini7079]

very helpful explanation..thanks

[@jericojamescadacio118]

may i know what program did you use in the video? i like how easy to move those lines to be able to show that it meets with the arrow heads

[@Shogun1289]

very clearly explained, thank you very much

[@rodolfolozano2115]

Great video!

[@50Hz]

Top Quality Videos

[@juleshdas3863]

Can I please make a video on open delta and broken delta connection of PT. And how to do the calculation of output broken delta volt when the 3 phase input volt is imbalanced

[@Generalpac]

Great topic! Thanks Julesh. We are gearing up to select our nest topic. If you subscribe at patreon.com/generalpac you'll get voting rights on our next topic selection! Please subscribe and support us so we can continue our mission. Even a $1/month subscription helps.

[@fitofight8540]

What if one don't use symmetrical components? Can the information bout the fault still be known by other methods? I mean before the concept of symmetrical components was invented, what methods were used?

[@Generalpac]

If I understand it correctly (and challenge or add to this comment) -- back in the day (before main-frame computers), they use to create a miniature version of the system using simple cables and small transformers. They were very careful of the impedance used for the mini system because it had to accurately reflect the big system. And when they injected current through the mini system, they could easily measure the current flow through each line which would reflect how currents would distribute through the actual system. Similarly, I think they had a crude way to measure unbalance fault currents. That's all I know. If I find out more, i'll comment again.

[@MahmudulHasan-eq7ug]

What is the application used to capture this video? Thank you in advance.

[@fitofight8540]

I can understand that fault can make in balance magnitudes of the 3 phases but I can't figure out how can fault results to unbalanced phase. Somebody help me pls.

[@JohnHondo11997]

Say for instance there a line-to-ground fault. If only one phase is faulted then there is zero or very small impedance to ground. However, if the other two phases are not faulted then they maintain the same impedance as they did prior to the fault. Therefore you have one phase with a different impedance than the other two phases and you have an unbalanced three-phase system. Does that make sense?

[@tokiniainavictoriotrandria2028]

thanks man, really helpful

[@Generalpac]

Knowing that our videos were helpful to you is indeed satisfying. :) Currently, we are offering great discounts on our paid courses, you can have a look at our course page here: www.allumiax.com/power-system-courses

[@shafi2344]

Great Lecture..

[@sandeepv341]

Which software u r using ??

[@jayantpopli3867]

Nice videos.

[@123prenyvkmg]

Excellent work

[@mohammadshiblu251]

thanks a lot

[@AntonyMBenedict]

Good demonstration. The video is better when we watch it in 1.25 speed though xD

[@shazrizvi4343]

Awesome 👍

[@Generalpac]

Hey Shaz, You might also be interested in our "Power Systems Engineering Vlog" series. Signup now and get 75% OFF: bit.ly/33dB0MM . This is a limited-time offer. We hope you benefit and enjoy it. :)

[@FusinSW]

Excellent!

[@bereketmolla4453]

Sir u r genious

[@MrJthreeR]

best explanation

[@Generalpac]

Knowing that our videos were helpful to you is indeed satisfying. :) Currently, we are offering great discounts on our paid courses, you can have a look at our course page here: www.allumiax.com/power-system-courses

[@leandrolemos7194]

Waiting for the next one

[@archanaharsha9661]

Superb

[@Generalpac]

Hey Archana, thanks for your appreciation. You might also be interested in our "Power Systems Engineering Vlog" series. Signup now and get 30 days FREE Trial: bit.ly/PSEVlog

[@yoniskhalif7406]

nice really

[@Generalpac]

Thanks for the appreciation! :) For more content join us at www.patreon.com/generalpac

[@JackLee97]

the answer i been seeking for so long.. THIS IS IT.. WHY IS THERE POSITIVE, NEGATIVE AND ZERO PHASOR?? BECAUSE THEY ARE PARTS OF THE ORIGINAL UNBALANCE 3 PHASOR

[@Tsykal]

finally somebody put it in human language, mixed with background music.

[@dfghjasdfghjk7719]

TANK

[@mohammadhabibullah5882]

Nicely explained but background music is very much annoying and distracting

[@casperlabuschagne6250]

Please clarify the opposite rotation of the positive-sequence and the negative-sequence values. I don't believe the negative-sequence component rotate in an ACB rotation if the positive-sequence component rotate in the ABC rotation. They actually both rotate in the same direction, and, in fact so does the zero-sequence components. This can be understood if you consider the magnitude of say, IA, the A-phase current. As you show, IA is the sum of the positive-, negative- and zero-sequence currents. If the system remains in the unbalance condition as shown, IA, IB and IC will have the same magnitudes for as long as the impedances do not change and the applied voltages do not change. The only way this is possible, is if the sum of the three components stay the same, i.e. IA = I1 + I2 + I0. And the only way that is possible is if the three components all rotate and if they all rotate in the same sense (ABC or ACB). Else the phasor sum of IA = I1 + I2 + I0 will vary as a function of the relative positions of the sequence components. Another way to prove this is to consider a network with more than three phases (the original paper expanded the theory of symmetrical components to n phases). As an example, let us consider a six-phase system. In a six-phase system there will be six networks, i.e. positive, negative, zero sequence and three other networks that we have not named yet. Let us call these other three networks S, T and U networks just to give them names. If, according to you, the positive-sequence network rotates in the ABC rotation, and the negative-sequence network in the ACB rotation, how will the S network rotate? ABC or ACB? How about the T network? ABC or ACB? And the U network?

[@ryanchurchman9017]

mind = blown

[@fitofight8540]

I got to read more.

[@iamisro6636]

Come to india ... You might get selected in IIT as a professor . 😂 Much better than who taught us ..

[@Impedancenetwork]

My god you can really drag this stuff out. You cover too much from the previous video in whatever your next video is. You do this in all your videos. Speed it up and quit reiterating what you have already said in a previous video. The series as a whole set is good. Although I learned this in my power system analysis class this explanation is pretty good.