Three Phase Electricity Basics and Calculations electrical engineering
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In this video we learn how three phase electricity works from the basics. We explain how three phase electricity is generated, how the voltages vary, how to calculate the voltages and vrms, what frequency, hertz and cycle mean and how we get two different voltages from a three phase supply. We look at wye and delta, transformers and generators. We start with a simple single phase AC generator and then add in a second and third phase to under stand its working principle.
LEARN MORE HERE: theengineeringmindset.com/three-phase-voltage-calculations/
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#electricity #electrical #engineering
@EngineeringMindset 5 років тому
⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕ PayPal: www.paypal.me/TheEngineerinMindset
@rogerstarkey5390 5 років тому
For RMS you could simply multiply the peak voltage by 0.707. (area under a sine curve) ...... Interesting(?) Fact. That is also the ratio between the sides of any standard sheet of metric paper. Example, A5: 150x210mm A4: 210x297 A3: 297x420 etc. Half the size of paper, gives 71% of the length Those in Europe/ UK, look at a photocopier. Standard enlargement/reduction 35% 50% 71% 1:1 141% 200%
@RaviSingh-fv4sh 5 років тому
How can two phase electricity work with only single neutral wire?
@itsmeayan1728 4 роки тому
Awesome video
@EngineeringMindset 4 роки тому
@@RaviSingh-fv4sh ukposts.info/have/v-deo/nnqWhpeZjWuZr4k.html
@jacobmcdaniel9370 4 роки тому
You do realize that the cogs on the logo would jam right?
@CanadianIndian88 3 роки тому
Dude the kids/teens growing up and going to high school and college have no idea how fortunate they are that people like you are putting these type of educational videos on various subjects. It makes it much easier to understand rather than just hearing from your teacher or reading a book (which even I never understood right away) since I am a visual learner. I wish I had these type of videos for reference when I was in high school/college.
@py2724 2 роки тому
free education right here it's like they want somebody to learn it 🤷🏼♂️😝🤪
@peaceful8436 2 роки тому
Actually todays generation will not realize how lucky they are. Accept for some smart kids.
@tensevo 2 роки тому
yes, but they are not here, they are getting their brains fried by tiktok
@TheNFSRocket Рік тому
I appreciate it alot, i am currently studying for my bachelors exam and this guy saves my ass hahah
@jasonanderson4915 Рік тому
Oh yeah. The way they have modern school set up is ridiculous on so many levels.
@NWJF 6 місяців тому
I'm speechless. I've been watching this series for hours. I am a high voltage electrician apprentice. Generation, transmission and distribution substations... This video series on electrical theory, single and 3 phase power is simply perfect. Information taught this well is literally priceless and it's free to all. As it should be. However. Your effort in production and your ability to convey concepts is unmatched. I can't thank you enough, not just for myself but for anyone watching this and learning from it. What a gift.
@casanova6566 4 роки тому
I watch many videos teaching this subject and this channel is by far is the best. Don't waste your time watching others.
@aliyahtorres5669 3 роки тому
agree
@kubatrojanowski1187 2 роки тому
came here only to say this exact line, im learning more than i learned in my 4 years of tech uni
@traveldiaries3781 4 роки тому
This channels teaches you things within few minutes ...whereas in colleges or educational institutes it take almost 3 to 4 years to get concept clear ..Great channel .
@GreenGoblinCoryintheHouse 4 роки тому
If someone doesn't understand stuff,you refer to the internet. It's written in every religious book. I struggled with data structures and algorithms in school so,I referred to UKposts. It wasn't easy at first but I eventually got the hang of it, schools and colleges don't have the liberty of giving special attention to each student.
@samo6401 4 роки тому
You missed the point. It isnt that they didnt understand their professors the first time and had to refer to youtube. Its that universities take years to teach stuff that could viably be taught by a youtube video in a few minutes. You would think that a credetation site which charges such high prices would be more efficient at educating their customers, if the information is already freely available on the internet. There are people here saying that their universities never even taught this stuff at all, which, before you say is them not paying attention, well, they wouldnt have passed and recieved their major then, but they did. You would think that if you have to pay such a premium to recieve an education at a university, you'd learn enough to not have to leave comments like the original one posted here. The point is that we're really only going to a university for creditation and to network, because the good education seems to be happening on the internet
@Triggs-Music 4 роки тому
@@samo6401 who do you think is better off, someone who watched a 5 minute video, or someone who spent 4 years thinking about their subject. Theres a lot to be said about colleges failing, but its not one giant 4 year multipart youtube video that can be condensed into 5 minutes, when you are in college you are practicing the material, after a 4 minute video on youtube, you arent done knowing everything about something, its not like your education is complete. This is survey, which has its place, but you shouldn't conflate the two things as if they were exchange-able.
@samo6401 4 роки тому
@@Triggs-Music thats not what we're talking about here. We dont mean the entire collective knowledge of all of the classes people took in college. We mean one topic, where in college, you need to spend years taking preliminary courses as well as gen eds just to finally get to it at the end, when you couldve understood it with just a 5 minute video, and you need to pay for all of that. You didnt need all of the college experience, you may have not needed the preliminary courses, you didnt need the gen eds, and as much as I agree with you that education isnt complete without practice, if there are college grads here saying that this was never taught in their coursework, do you think they practiced? No. Thank god for the internet. Information like this used to be hidden behind a massive paywall.
@Triggs-Music 4 роки тому
@@samo6401 how is what I said or the other guy green goblin for that matter not what we are talking about. If I’m adding to the point that’s not me changing the subject, if I reject your point with a new point then it’s part of the said conversation. If it weren’t then no one could ever argue and every idea or thought would Have to be accepted as true.. with that, I agree with you that colleges are failing and the quality of education is absolutely terrible, that god there is indeed an alternative. But what you are understanding in 5 minutes here is not all there is to the subject. There is a point to being around people who know the subject. The role of teacher is not just learning but also help knowing where to look next. If you are forever doing this on your own, you’ll get stuck eventually in basics videos. I have to say but I’ll stop here for now
@mlancepittman283 2 роки тому
I received my bachelor’s of electrical engineering in 2001 and wish this video was available (it is much better than many of my professors in able to explain it from a pragmatic view). It helps me reinforce and gives me tips how to better explain power. Many thanks.
@Jatinjangid8898 4 роки тому
There is nothing else like this channel. The dedication with which these videos are made is commendable. The animations. The narration. The concepts. The excel sheet!
@akramal-khazzar5450 5 років тому
your videos are way underrated and the views do not reflect the content super helpful
@TeamHeapMI Рік тому
That last 2 minutes my mind just went from off the charts to wow it all makes sense now and always wondered where the 208v came from. Thank you for you're knowledge and dedication to teaching along and make it so easier to understand
@haiqichen1446 4 роки тому
love this guy who explains better than my teacher.
@richmac918 2 роки тому
Your video's are the best I've ever seen. I know everything you discussed but if I were a new student I would have learned more in 15 minutes than reading my text books for hours at a time. I wish these were around when I was a kid, just so much easier visually seeing how something works that trying to decipher it from written text.
@Byefriendo 2 роки тому
For anyone curious as to why Vmax is exactly sqrt(2) x Vrms, here's basically why What having equal heating power means is basically that the integral of the AC wave's power is equal to that of the DC current, and over a fixed time, they'll transfer the same amount of thermal energy to the block. Using basic formulas, we can see that P = VI and V = IR. These can be merged to solve for power, as being P = V^2/R. Letting R be the same between both scenarios which is required, we get P proportional to V^2 The energy of one AC waveform with voltage Vac*sin(t) (no frequency or phase offset since we are just looking at a single waveform) should equal a DC source with voltage Vdc, and since energy is the integral of power with respect to time, we can show that; ∫(Vac(sin(t))^2 dt = ∫Vdc^2 dt for the range between 0 and 2pi (one waveform) Solving these integrals gives pi*Vac^2 = 2pi*Vdc^2 Re-arranging gives us Vac = sqrt(2*Vdc^2). If we were to sub in an RMS/Vdc of 120v, we get Vac = sqrt(2*120^2) = 169.71 ~= 170V This is where that sqrt(2) conversion factor comes from.
@jordancroom Рік тому
Good point well made.
@user-hr4fd9nt5v 3 роки тому
Cannot believe how much I love this channel. Fantastic job at explaining everything so that we can pick up quickly.
@EngineeringMindset 5 років тому
How *SINGLE PHASE* electricity works ➡️ ukposts.info/have/v-deo/j2CQZa6JqIpp1ok.html
@vdrizzlej8805 5 років тому
Great vid mann!!! Thanks for all the formulas!! Well explained!!!
@vadim2568918 4 роки тому
I don't know man,how your videos manage to taught me all necessary knowledge,which I supposed to get in my university.I didn't understand it on my native language, However, you nailed it in few minutes in English,just bloody miracle of your teacher's talent,hats off to you,Paul,and sincere gratitude
@otlaadisankhwa5956 4 роки тому
Wow, i couldn't get a better explanation than this. Thanks a lot
@tw06le1 4 роки тому
You just taught me more with 2 videos than my entire High School on this topic. Sub/Notif.
@kunalprasad3919 3 роки тому
lol
@Zubi582 4 роки тому
Thank you 🙏 to The Engineering Mindset and all crewmen and people that makes this possible, for all the information you give us.. many, many thanks 🙏 your channel is amazingly al’some, you teach us things that it will take 2-4 years for college to teach us... thanks once again..
@ikehsamuelifeanyi4925 Рік тому
Here in Africa, your videos have exposed in depth as well as clarifying science and engineering concept down to basis. I have learned tremendously from the tons of videos you made. Thumbs up.
@Glotzekatze 2 роки тому
Love the video, just wanna add that most of the EU runs on 230/400V and 50Hz instead of the 220/380V you mentioned
@fodotdk 2 роки тому
yup
@JulesHuls Рік тому
Yes, the entire EU has standardized it grid on 230V since 2009. Including the UK. This video uses the pre-2009 voltages. Though the concepts are the same and the video is still as useful!
@jarednielsen6288 3 роки тому
This is a great video. 208 3 Phase is however regionally specific in the US, and 480v 3 phase is much more common in some areas, especially concerning HVAC and some generators. I work at a commercial property that's about 30 years old in which one property tenant has 3 phase 208 and their neighbor 40 feet away has 3 phase 480v. it would be great to include this in future videos or update. All in all though I love The Engineering Mindset videos!
@jkj1459 4 роки тому
THANK YOU SO MUCH .. AFTER 35 YEARS NOW UNDERSTOOD THE STUFF BETTER . IT WAS DIFFICULT IMAGINING , WHAT EVER WAS TAUGHT IN THEORY , SO WE HAD TO MUG UP FOR EXAMS THOSE DAYS . THANKS TO YOUR WILLINGNESS AND RESEARCH TO FIND BETTER WAYS TO TEACH SO THAT CONCEPTS ARE CLEAR TO OLDER GENERATIONS LIKE ME . EXCELLENT KNOWLEDGE AND TEACHING SKILL .
@danielhenderson7050 4 роки тому
Love your videos. You explain things well! I think you should have kept all the calculations for a different video though. It didn't mix well with the explanation of what 3 phase actually is.
@vaya2146 5 років тому
Wow!! Super Clare for me sir. You are the best of the best.
@simonmaverick9201 3 роки тому
These videos are fantastic - easy to follow and intelligently presented.
@palebluedot285 4 роки тому
Love this guy..😍
@tangled5529 4 роки тому
You are an EXCELLENT teacher, dude.
@tufimckane 3 роки тому
Best explanation ever. Sine wave, 1 phase, 3 phase, V RMS, V Max. I'm just a country man and just start learning basic electronic and DIY stuff in my old age. I only understood after watching this video. Thank a lot
@MrPraveenGeorge 5 років тому
Well explained and easy to understand. Thanks :)
@chrisbevan1992 3 роки тому
I enjoyed the ac power generation part. Very intuitive, thanks for sharing.
@jaydoshi4051 Рік тому
went to NJIT back in 09-13' and no one ever explained this as clearly. great for upcoming engineers!
@jordancroom Рік тому
You make it so easy to digest rather complicated material for most. Such a short amount of time too👍🏼💯
@dickyrock1 5 років тому
Really appreciate your videos. I use them a lot, many thanks
@ferdinandfrancisco740 3 роки тому
Very informative and simply explained about the details. Thank you
@equiteemfg Рік тому
When I went to engineering college, they introduced all of this. When I couldn't grasp it, I asked them to go over it again. They said "don't worry about it, it will all makes sense as we go along". Well, it didn't. I was the stupidest kid in the class and after a couple of semesters of struggles I quit. Now, I watch a couple of video's that are well presented and I can scroll back and the dumb shit left and a smart guy entered the room. I cannot believe what the computer and intelligent teaching is doing for me. Funny thing is that I look at the graph showing the places where people scroll back and repeat? Turns out there must have been a huge percentage of people just like me that didn't get it on the first pass. These videos are un-fucking=believeable. Thank you to The Engineering Mindset. I hope they keep making or improving the material at those scrolled over parts!!!
@kundanarya9121 4 роки тому
It's very easy to understand through your videos. Thank you so much.
@kenschaefer7625 2 роки тому
Great stuff. Takes me back to 1970s when I taught electricity and electronics in the Air Force.
@josephhuerta5601 4 роки тому
Purchased the spreadsheet. Epic job mate!
@miketucker7466 2 роки тому
I hope you tube pays you well for your efforts producing these video
@EngineeringMindset 2 роки тому
UKposts keep around 40% of all our ad revenue, but I do make some money still. Nothing compared to these kids uploading videos of themselves playing Xbox games though.
@henrybartlett1986 5 років тому
These are brilliant. Many thanks.
@adamhaziqsalleh 8 місяців тому
this is just too good of a video. very informational
@joehoffrage 3 роки тому
Wow, this is educational and rather simpleminded to give me a general understanding of what’s Goog on with the electrical in the house! Great!
@itzhakramm44 4 роки тому
very good explenation right here, thank you for you knowledge and good animations.
@curdleddreams2711 3 роки тому
The information is so intuitively explained. It almost feels like sorcery!
@SiR2Dean 9 місяців тому
You've just managed to teach me in under 8mins something I've failed to understand for nearly 40yrs 🎉 cheers mate
@martin8uq 4 роки тому
Straight to the point. Great Vids. Subbed.
@blxtothis 2 роки тому
My dear old Pop was an Electrical Engineer who began his career as a jointer working on mains electricity installation vis underground high voltage cabling in London. As a kid he tried ceaseless to explain to me how it all worked and I just never got it, now in my 70s it’s still a mystery but thanks to these videos I now get it. Thanks for that and to those thumbs downers, go and get a life!
@monikamukherjee3533 3 роки тому
Knowledge being taught must be as in this active and readable way , not just those fixed graph and vague words ! Anyway , thanks for your brief but elaborate teaching ! Chuck from Taiwan
@BeattapeFactory 4 роки тому
This is absolutely incredible thanks. University only taught me the functions and calculations but gave me no deeper understanding.
@martinkuliza 3 роки тому
it did teach me i have found that it really does depend which uni you went to
@zakary3190 3 роки тому
These channel is the best for an engineer to understand so faster things what he needs for technical domain
@theonly5001 4 роки тому
RMS Voltage is the Voltage, where the area between the graph and 0 line of the voltage is the same size for either AC or DC. That is a mathematical function and results in a factor of root 2 ~1.41 between the voltages
@larryvanbarriger6670 2 роки тому
Great informational video. Had to refresh on how 3 phase works.
@damionlightner6645 3 роки тому
Thanks for the spreadsheet!
@vheisshu 4 роки тому
i just leveled up my electrical knowledge by 10V now. Thanks!!
@ravikiran8730 3 роки тому
right?
@sabercruiser.7053 4 роки тому
THANK YOU VERY MUCH.KEEP GOING FORWARD
@Seansaighdeoir 3 роки тому
What an awesome channel - many thanks for posting!
@abrarhaider9491 3 роки тому
I jusy subscribed this channel after watching and learning in way like my elder brother teaches. Thanks brother. May Allah bless your more and more knowledge which never ends. 4m Pakistan.
@tonylanzar919 2 роки тому
Huge Help to Electrical students in these animations its Easy to Engage thru Theories applied.
@LSF315 5 років тому
What a great video but unfortunately, I can’t view it until the end for some reason. Can’t wait to see more about three phase in the other video you referred to.
@saswatroy8962 2 роки тому
Very informative. It helped in understanding the fundamentals.
@oliverengl467 2 роки тому
Thx for the awesome explanations in this video and for reminding the basic of 3 phase current :-). By the way for me as german it's very interesting getting more familiar with US electric and I must say it's very different to german electrical power and installation - great channel
@amrelsheikh5770 4 роки тому
These videos Super helpful ... Thanks A lot
@PaulOvery001 5 років тому
Wow - I get it. That was made it simple to understand - thanks.
@amazingsciencebd2835 Рік тому
Thank you so much for excellent explanation . I highly appreciate your explanation .
@jaskirankaur2271 4 роки тому
Best explanation ever !! 👌
@palak6981 4 роки тому
Thanks a ton! The BEST.
@shankarsuryawanshi7390 5 місяців тому
Marvelous video across youtube and sheer evidence of incredible enginerring teaching of this century
@Anthony-ns5vd 2 роки тому
So my teacher said “I’m going to show you guys a video today” and sure enough it was this channel. Love these videos, good job.
@frankkasibante976 Рік тому
This is very helpful. Thank you very much.
@taradean. 2 роки тому
dude thanks a ton for explaining with such details!!
@seankaran3490 Рік тому
Thanks Paul! Excellent.
@mosesbit 3 роки тому
You are so good! Helped me a lot!
@wtfucrazy Місяць тому
Man, you are so good with explaining. Unbelievable.
@michallacki9462 5 років тому
Amazing video as always ! Love this channel
@EngineeringMindset 5 років тому
Thanks for your comment :D
@EngineeringMindset 5 років тому
Thanks for your comment :D
@henrybartlett1986 5 років тому
These are very useful. Many thanks.
@philliplappin2871 4 роки тому
Just sent you a tenner for watching 4 or 5 of your videos, keep up the good work, try to get these into schools, such an easy way to learn the basics and advanced stuff and an easy way for most people to get their head round it. cheers
@EngineeringMindset 4 роки тому
Thank you for your support, Phillip.
@sabahameed7256 2 місяці тому
Thank you so much; I had trouble understanding the concept of electricity in physics. However, after watching these videos, everything is clear to me. I am glad that I came across this series.
@zubair1411 5 років тому
This is what I needed...
@ugorjivictor5941 9 місяців тому
Oh my good God.I just came across this video,made physics in radiology so easy for me.. I'm impressed, thank you very much.
@danielteyehuago1633 2 роки тому
Thanks for your sharing it with us. This is a great tutorial and very informative... dl
@igogeh3532 3 роки тому
Thanks for this elaborations, they are second to none! Where 1line is 34.6A and end to end is 20A, how many amps is the motor?
@just4simplegg428 2 місяці тому
Amazing ! Thank you
@Hank8337 Рік тому
Two thumbs up!! thank you!
@darkz5382 8 місяців тому
Best explain ever
@N4TH4N23 5 років тому
Fantastic Video as always, thanks! Just have to say the standard in the UK is now 230V at LV or 216V-254V as regulations allow for +10%/-6% from 230V, so 240V is still acceptable and confuses some people. Source: Work for Electricity Board
@EngineeringMindset 5 років тому
I almost put a section about this and the EU voltage tolerance changes but in the end settled on covering the basics with a single value.
@muhammadrafiq5768 5 років тому
The Engineering Mindset I agree with you for mentioning single value of 1ph and 3ph voltage to avoid any confusion of the listeners.However, a general statement can be given stating that there is upto +/- 19 tolerance that various country to country per local electrical authorities.
@ivicajanco9921 5 років тому
Yes, and also in all EU countries 230V is standard voltage for at least 15 years now.
@danielmorris2653 2 роки тому
@@EngineeringMindset Interesting videos. UK & Europe were harmonised about 1992. I was working in T&M calibration/service centre and we had to amend hundreds/thousands of Metrology Support Packages when calibrating/testing/certifying each item of DVM, multimeter, PAT tester etc. as the test points/results would be across the expected range of supply voltage. Effectively both sides converged on nominal voltage of 230V, Europe was 220V plus tolerance and UK 240V minus tolerance. ISTR approx 7% of UK mains supply came undersea from generation in France etc. and was a practical driver to harmonise.
@EngineeringMindset Рік тому
Check our new Multimeter tutorial out ➡️ ukposts.info/have/v-deo/bJxyrbCJr6mTpZc.html
@manishpandey3926 Рік тому
Superb Video . The best ever to understand the phase
@GowSi_Knowledge_Park 5 років тому
Excellent. Useful information.
@eng.measar7486 4 роки тому
Wish all the best of luck for you Ver useful information
@TomMattin 8 місяців тому
Would love a video explaining how it shorts out.. like, the fact the neutral is connected to the star point isn’t the same as a L-N short, and how phases don’t short out when connected together.. could be obvious but think these videos explain basically everything there is to know, extremely well
@erickginesta659 3 роки тому
Best videos ever! please dont stop
@Saint_Nation 2 роки тому
Earned another subscriber, good information man.
@alexandercastaneda9431 5 років тому
The best UKposts channel
@darcyfunk 4 роки тому
Thank you!
@chainhonglim1281 4 роки тому
Thank you Paul :)
@FernandoSantos-bq4wr 4 роки тому
Thank you so much sir 👍
@beachboardfan9544 5 років тому
The two prong plugs in the US are no longer used, they are all grounded or 3 prong like everyone else, been that way since the 90s
@altuber99_athlete 2 роки тому
4:40-6:33 Two corrections: * The waveforms are not correct. From Faraday's law, we know the induced EMF in the coils due to the rotating magnetic field, is proportional to the _rate of change_ of the magnetic flux through the coils, not proportional to the flux itself. So at time 4:59, when the magnetic field is maximum as stated in the video, the induced EMF is actually zero (not maximum as the video says) because the rate of change of the flux is zero at that instant. At time 5:09, when the magnetic field is zero as stated in the video, the induced EMF is actually maximum (not zero as the video shows) because the rate of change of the flux is maximum at that instant. * An AC voltmeter reads the RMS value of voltage, not the instantaneous value as the animation show.
@Der-Elektriker 4 роки тому
It is really interesting to see how other countries handle the electrical installation / infrastructure! But the most countries in Europe (for example Germany) also use 230 / 400 Volt 😃
@PrzemekSzmigielski 4 роки тому
Poland use 230V also England use 230V
@giovannibianchessi1578 2 роки тому
@@PrzemekSzmigielski In Italy 230/400V too
@timsteenbruggen9216 Рік тому
Netherlands 230V
@maruthiprasad8184 4 роки тому
Great job sir, keep it up.
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