Three Phase Electricity Basics and Calculations electrical engineering

[@EngineeringMindset]

*Important* Please watch the newer version of this video LINK:👉 LINK: kzbin.info/www/bejne/mWrKnpKEgZx-r6c

[@babajungLA]

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]

free education right here it's like they want somebody to learn it 🤷🏼‍♂️😝🤪

[@peaceful8436]

Actually todays generation will not realize how lucky they are. Accept for some smart kids.

[@tensevo]

yes, but they are not here, they are getting their brains fried by tiktok

[@TheNFSRocket]

I appreciate it alot, i am currently studying for my bachelors exam and this guy saves my ass hahah

[@jasonanderson4915]

Oh yeah. The way they have modern school set up is ridiculous on so many levels.

[@NWJF]

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.

[@MedDjama-dk5fz]

mohamde

[@MedDjama-dk5fz]

MedDjama

[@casanova6566]

I watch many videos teaching this subject and this channel is by far is the best. Don't waste your time watching others.

[@aliyahtorres5669]

agree

[@kubatrojanowski1187]

came here only to say this exact line, im learning more than i learned in my 4 years of tech uni

[@mlancepittman283]

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.

[@traveldiaries3781]

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]

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 KZbin. 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]

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]

@@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]

@@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]

@@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

[@Jatinjangid8898]

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!

[@BowensBlvd]

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

[@Byefriendo]

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]

Good point well made.

[@vadim2568918]

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

[@tufimckane]

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

[@blxtothis]

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!

[@richmac918]

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.

[@haiqichen1446]

love this guy who explains better than my teacher.

[@jkj1459]

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 .

[@AugustineAriola]

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.

[@akramal-khazzar5450]

your videos are way underrated and the views do not reflect the content super helpful

[@tw06le1]

You just taught me more with 2 videos than my entire High School on this topic. Sub/Notif.

[@kunalprasad3919]

lol

[@jaydoshi4051]

went to NJIT back in 09-13' and no one ever explained this as clearly. great for upcoming engineers!

[@vheisshu]

i just leveled up my electrical knowledge by 10V now. Thanks!!

[@ravikiran8730]

right?

[@keithdecristo5040]

I'm currently taking a certification course that consists of training videos followed by a quiz - so grateful for this series which, in my opinion, make up for the lack of cohesion in the training materials. So grateful for this series, I'm ordering my mug right now!

[@SiR2Dean]

You've just managed to teach me in under 8mins something I've failed to understand for nearly 40yrs 🎉 cheers mate

[@equiteemfg]

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!!!

[@N4TH4N23]

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]

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]

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]

Yes, and also in all EU countries 230V is standard voltage for at least 15 years now.

[@danielmorris2653]

@@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]

Check our new Multimeter tutorial out ➡️ kzbin.info/www/bejne/ap2kqq2IrdiVesU

[@Glotzekatze]

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]

yup

[@JulesHuls]

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!

[@Anthony-ns5vd]

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.

[@EngineeringMindset]

How *SINGLE PHASE* electricity works ➡️ kzbin.info/www/bejne/jWHCYquIprlrq7c

[@theonly5001]

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

[@jarednielsen6288]

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!

[@EngineeringMindset]

Seen our new 3 phase transformer video?➡️: kzbin.info/www/bejne/q2G2pJigeaiJobc

[@10E-g2w]

Cannot believe how much I love this channel. Fantastic job at explaining everything so that we can pick up quickly.

[@otlaadisankhwa5956]

Wow, i couldn't get a better explanation than this. Thanks a lot

[@ugorjivictor5941]

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.

[@miketucker7466]

I hope you tube pays you well for your efforts producing these video

[@EngineeringMindset]

KZbin 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.

[@Der-Elektriker]

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]

Poland use 230V also England use 230V

[@giovannibianchessi1578]

@@PrzemekSzmigielski In Italy 230/400V too

[@timsteenbruggen9216]

Netherlands 230V

[@danielhenderson7050]

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.

[@hangry5594]

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

[@Zubi582]

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..

[@shankarsuryawanshi7390]

Marvelous video across youtube and sheer evidence of incredible enginerring teaching of this century

[@vaya2146]

Wow!! Super Clare for me sir. You are the best of the best.

[@sabahameed7256]

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.

[@superpayaseria]

Honestly you deserve 1,000 thumbs up. And I just thumbs downed 2 other channels and even insulted one of their presentations and called it sucky. lol ur the bomb dude. I love ur channel! I don't care how negative I am. I'm honest.

[@abrarhaider9491]

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]

Huge Help to Electrical students in these animations its Easy to Engage thru Theories applied.

[@BeattapeFactory]

This is absolutely incredible thanks. University only taught me the functions and calculations but gave me no deeper understanding.

[@martinkuliza]

it did teach me i have found that it really does depend which uni you went to

[@SoYFooD2]

euro moved to 230v 400v.they started in 1985 and in 20 years they slowly moved from 220V/ 380V to 230V /400V just a heads up.

[@Shadow_of_STLKR]

maybe hes recording this video in 1999...

[@SoYFooD2]

lol

[@boomwithpeter623]

Actually not all the europe, in eastern erupe its 220V and 380V (Serbia), but it depends if you mesure in a household near a transformer or in the one awey, wors example ive seen is 260V as the max in my village (house is snext to trafo field) and the min ive seen is 140V, but it accures when there are problems like heavy storm or winter

[@evilbaron]

Exactly that, what Germany have, 230V/400V.

[@janisbutkevicus3801]

220/380 was in USSR so 220/380 is dead history in EU

[@jordancroom]

You make it so easy to digest rather complicated material for most. Such a short amount of time too👍🏼💯

[@spideliciousx9822]

Great video, the instruction and presentation is fantastic. FYI , I did remove my last comment to save confusion. You were completely correct, the standard is meant to be 230v in Australia.

[@martinkuliza]

Why is it meant to be 230 V AC it's 240V AC, 10A at 50Hz for standard Residential Power , According to the Australian Standard well, Actually it's 216 V AC to 253 V AC as the allowable range, but the accepted nominal figure is 240 V AC I'd love for you to prove me wrong on this point, by all means but i doubt it if you're gonna do it, provide Standards documentation so i can look it up, don't just use google as a reference or wiki, ok

[@EngineeringMindset]

@@martinkuliza AS 60038(2012) specifies a nominal voltage of 230V +10/-6% (216V - 253V)

[@martinkuliza]

@@EngineeringMindset really, ?? ok, i'll check it out thats' weird if it's true but hey, if it is, then it is what it is , ok mate, thanks, appreciate it .

[@kenschaefer7625]

Great stuff. Takes me back to 1970s when I taught electricity and electronics in the Air Force.

[@altuber99_athlete]

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.

[@zakary3190]

These channel is the best for an engineer to understand so faster things what he needs for technical domain

[@BaldurKhr]

At 5:02 when N is facing the upper coil, something else happens. When the N pole is right in front of the coil, emf=0 ! There is no current. Explanation : As the N pole approached the upper coil, the magnetic flux through it was increasing so current was generated in one direction, but now as the N pole is moving away from the coil, the magnetic flux is decreasing so current will switch the flowing direction !!! Its all about dPhi/dt ( change in mag flux). It is not dependent on the intensity of the field lines in the coil, but in the change of the field lines through the coil. Therefore in between these increase and decrease of m. flux, the current is assumed to be 0 ( ideally, if no self inductance is taken into account). Maximum current through the coil is obtained when N and S are perpendicular to the coils, that’s when phi varies the most. Despite this small detail, i found your vid very useful. Thanks a lot for all your videos, they’re of great value! All the best!

[@yako668]

Thanks for ur comment, I got confused at the beginning after watching "How three phase electricity works" where he mentioned that the strength of the magnetic field gets to its minimum (in its poles) when its vertical while in this video it's the opposite!

[@BaldurKhr]

N.J Production you’re welcome. We’re all here to learn and share knowledge. Its important to notice the flux change in the coil because that’s when EMF is generated! All the best!

[@dafinfeel7942]

Pentru un nestiutor ca mine: daca din vânt sau apa, reusesc sa fac un rotor, el trebuie sa se invarta in jurul statorului de 220 pe secunda? ..si am in gand doar pentru alimentare casnica...sau poate a explicat dar nu am inteles. Multumesc! :)

[@stijnlagache]

Thank you! I was already looking for an hour where I was wrong! So if the pole is in front of the coil, current direction changes because of change from increasing magnetic flux to decreasing magnetic flux?

[@BaldurKhr]

@@stijnlagache exactly. Where N is right in front, the Mag Flux is at it’s maximum, then it starts decreasing through the coil, leading to a reversed emf generated in the coil due to now decreasing mag flux. Despite the case when N was approaching the coil, the mag flux was increasing through it.

[@curdleddreams2711]

The information is so intuitively explained. It almost feels like sorcery!

[@blend43]

Someone might have already said this but : Australia is 240V & 415V standard output. Thanks for the great video.

[@EngineeringMindset]

Multiple people said it and multiple times I reply no it isn't. Australia is in the middle of a transition to align with the rest of the world (except North America) with 230V

[@ryanmorris2126]

I would have smashed school with resources like this as a kid. Thank you!

[@LSF315]

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.

[@ryanodriscoll]

I really hate that I am watching this on a Sunday night, but I am very glad that I finally have a basic understanding of how 3-phase works

[@tangled5529]

You are an EXCELLENT teacher, dude.

[@querrythis]

Passed my electrical class exam but never understood the concept so I couldn't wire a hell. Thanks to you.

[@vdrizzlej8805]

Great vid mann!!! Thanks for all the formulas!! Well explained!!!

[@joehoffrage]

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!

[@simonmaverick9201]

These videos are fantastic - easy to follow and intelligently presented.

[@chrisbevan1992]

I enjoyed the ac power generation part. Very intuitive, thanks for sharing.

[@beachboardfan9544]

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

[@maximmilby2016]

Another way to think about it is that RMS is unusually 70% of the peak value. So that is why you get 120v if the peak to peak is 170.

[@TomMattin]

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

[@邱尚榮]

I think i can literally throw my textbook later.Great video,thanks.

[@philliplappin2871]

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]

Thank you for your support, Phillip.

[@WPPatriot]

The thing I'd really hoped you would show is what happens to the electrons during a cycle in a circuit that connects two phases. The video is really clear about how to calculate the values, and it's also really clear about how during the cycles the voltage is at times higher (and other times lower, obviously) than the "reported" voltage, but I have a hard time visualizing how the different phases 'boost' each other. I feel like I'm so close to getting that, but I really need to see it to truly get it.

[@EngineeringMindset]

See our 3 phase motor video

[@WPPatriot]

​@@EngineeringMindset Thanks! That made it make a lot more sense than before!

[@Joey-ir3lk]

Correction, the voltage used throughout Europe (including the UK) has been harmonised since January 2003 at a nominal 230v. So UK 240V and EU 220V is false.

[@alienbite6729]

Watching all your videos, valuable than Netflix or Amazon...Keep posting

[@Dave-ct1jk]

Omg I just found my favorite thing in life. That last 5 minutes was heaven❤❤❤

[@wtfucrazy]

Man, you are so good with explaining. Unbelievable.

[@suvosarkar1868]

Very very very very very very very very very good...... right now I'm understand 3 phase voltage

[@palebluedot285]

Love this guy..😍

[@kundanarya9121]

It's very easy to understand through your videos. Thank you so much.

[@michallacki9462]

Amazing video as always ! Love this channel

[@EngineeringMindset]

Thanks for your comment :D

[@EngineeringMindset]

Thanks for your comment :D

[@ferdinandfrancisco740]

Very informative and simply explained about the details. Thank you

[@thyeconomy]

My 1st year as an apprentice electrician summed up in 15 minutes haha.

[@darkshadowsx5949]

if you said the US voltage was 110v i would have to point out that it hasn't been 110v for since 1967. i only mention this because a lot of people still say 110v. im glad your info is up to date. we do use 240v single phase in every home too for washer/driers maybe refrigerators too. my work place gets 440v 3phase. not 208v that's a weird number and i wonder how you came up with it.

[@oliverengl467]

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

[@jefftilghman9059]

3 phase in America is 480VAC. I've been an industrial electrician for almost 49 years! So please check your facts.

[@captaincanuck4576]

I think he was talking about just houses for that blip. I doubt the UK is running their manufacturing and heavy industry off 415V

[@alaaelsharif2945]

ure my teacher bro big like from lebanon

[@phonemyatthaw6049]

Nice vid for me sir thanks alot

[@tomroose7733]

Three phase AC theory always blew my mind in college lol 😂 apparent power, real power and reactive power 😂

[@larryvanbarriger6670]

Great informational video. Had to refresh on how 3 phase works.

[@jasonanderson4915]

I like how YT now thinks I'm a professional electrician. My ad experience has changed since I began watching these types of vids XD

[@manishpandey3926]

Superb Video . The best ever to understand the phase

[@chihuahua412]

Best teacher out there

[@rasaq147]

Just whoa! As a holder BSc in electrical electronics engineering, I am relearning how these things work and if I get a deserving job I will definitely join so that I can help this channel financially.

[@MrPraveenGeorge]

Well explained and easy to understand. Thanks :)

[@kyngz1517]

Actually in Canada, you can have 120v/208v (basic distribution and lighting) and 347v/600v for bigger demand (commercial/industrial such as drives or lighting). Hydro-Quebec by default in industrial or commercial applications actually only supplies 3phase 600v. Its on the customer side that we drop down tension to 120v/208v. Residential is fed 120v/240v (single phase) from Hydro. Heavy commercial/industrial, Hydro can supply 14.4Kv/25kv :P Actually did a 2000amp@25kv entrance this winter...50mW of pure power! :P

[@NoorquackerInd]

For a second, I thought 50mW was milliwatts

[@igogeh3532]

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?

[@Volans2000]

EU now uses 230VAC/400VAC. The vídeo needed that tiny update. But it's cool! ;)

[@johnmeadows5645]

That is how you explain something so it can be understood.

[@craigwilton4096]

In the 18th edition of the wiring regulations, the Nominal voltage in the UK is 230/400v. Up to 10% above and 6% below this value is exceptable.

[@dickyrock1]

Really appreciate your videos. I use them a lot, many thanks

[@miguelac6872]

Marvelous, However I would like to know why we do not use a neutral line when we have 3 phases. Could u make a video explaining that please?

[@LtKregorov]

Power flows back and forth in the other phases depending on the timing. You can then have a « floating » device that only needs the 3 lines. Now the reason why you want a neutral or not is a theme for a whole other discussion, a complete series would be needed for that. If I sum it up rapidly, implication of having a neutral vs none, aside from allowing 2 different voltage to be seen by the equipment, has to do with when fault occurs ( lightning strike, short circuit, harmonics mitigations etc..) When a fault occurs, the extreme amount of power has to go somewhere. Being connected to neutral or not will have effect on what power the equipment will have to deal with during a fault, and what the other equipments on the same network will see when a fault occurs at the neighbour device. This is the basis of grid management. Stuff that substation engineers, power device manufacturers, and electricity manufacturer ( Utilities) have to deal with on a daily basis.

[@saswatroy8962]

Very informative. It helped in understanding the fundamentals.

[@TomMattin]

FYI UK now class their voltage as 230v. Used to be 250, then 240, now 230. Mainly to overcompensate for cable calculations as ohms law would bring out current higher with lower voltage and thus when calculating current carrying capacity for cables, it can influence the designer in selecting the next size up.Of course most houses typically float in the 240v RMS range in reality.

[@michael88jack]

El. Mejor video explicado three phases AC