01 - What is 3-Phase Power? Three Phase Electricity Tutorial

[@dustinjohnson6466]

I'm heading into school soon for 3rd year electrical... I have been using all your lessons for over 3 years now. You have taught me so much. I wish I could chat with you one day. Thank you for all your lessons over these past few years! You have been instrumental in developing my understanding of electricity and I believe I am a better electrician as a result. Really can't say thank you enough. With deep admiration and respect, sir, Thank you!!!

[@robertochavez8196]

When a instructor teaches a hard or confusing subject and makes it look simple, he is the best at it.

[@fletchergiovanni153]

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[@axelali4254]

@Fletcher Giovanni Instablaster ;)

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[@axelali4254]

@Fletcher Giovanni happy to help =)

[@Savan_Triveda]

Yes, excellent teacher. The world would be brighter with more people like you.

[@robertmotion]

This would explain 3-phase motors in most ebikes today. I’m teaching myself how to repair my ebike. Frustrating but enjoyable process. Funny story😏controller died on my ebike when I got caught in rain. 2nd controller in six months. Fed up😡with mediocre customer service in getting parts (please…never said I’d do it myself. Cut the motor cord to keep me motivated, bought parts, watched tons of KZbin videos and finally. After about a week of going from knowing nothing to learning the basics, I upgraded my controller (checking MOSFETS, resistance, etc are correct), added new LCD display, and learned all about Hall sensors, 3-motors, amps hour, voltage, power, phases, etc in the process. AND that hub motor spinning the other day 💪🏾 Videos like your help a lot. Thanks. /Bklyn👑

[@ahmadhussainwebshare1001]

I'm Electronic Engineer working as software programmer, in these days my interest caught by solar and started solar training and your video help me lot to understand clearly 3 phase 😀

[@MrArdytube]

I really appreciate how you start with a road map of the structure of the material you will cover

[@smoothbrain4384]

Teaching may be the noblest pursuit, my utmost respect to you sir.

[@sagaterratalset43]

I wish you were my instructor when I was in school. Your discussions are clear and well defined. I've learned more from you than I did in school. I've better understood learning on my own but better examples in these videos.

[@philipelder8343]

ITT

[@Lizardtriplettail]

You are a very good teacher. You can explain in a very simple manner trying to let the listeners understand even if they don't have enough background in electricity/ electrical circuits. Do more videos on basic electricity. Thanks.

[@johngirolamo8221]

Thank you! After all these years, I am finally enjoying mathematics! Keep up the great lectures!

[@bkkhanj]

Just a simple and splendid teacher who loves to make things easy to handle for us. Best regards to you sir! Engr. BK jawed khan Canada.

[@roycorrea3240]

This is the best teacher I’ve seen

[@MathAndScience]

Thank you!

[@KevinCoop1]

This video brings back memories of my electrical class in 1978! I hated my electrical class, made no sense. This is great information if you want to teach this math. Simply put, an alternator has equally spaced coils connected into three outputs each is 120 degrees apart. No big deal! I started as an electrical drafter in 1983, fell in love with my job and stayed with it until 2018. I designed residential, commercial, and industrial projects almost all with three phase systems. I became a PE in 2007. The point is, this point should be a 2 minute discussion and done. In the whole time of designing systems, I never used the math shown here. It's useless in the real world. But if you want to teach, it's good to use up time.

[@KevinCoop1]

@Dan Mattingly Well said!

[@bttan144]

@@KevinCoop1 Agreed! You can't build a house without foundations!

[@KevinCoop1]

Maybe I somehow had the foundation and didn’t realize it. I still feel that they try to make the math that is easy into something complicated.

[@jeffreylucas3421]

I took Robotics in College, I struggled so much with electricity and electronics. I was able to follow you in your short lesson more than what hours of beating my brains could accomplish.

[@jesusfamilyoutdoors1554]

For robotics and such, what are some things you would suggest learning? From the basic on up?

[@frankroper3274]

I worked in a textile mill years ago and most everything in the mill was 3 phase. You don't need a start or run capacitor on a 3 phase motor. You have a problem you just ohm it out and look for a short or a bad bearing or bushing. I can tell you a little old school secret I learned. If a motor is hot when you check it then it is good. A motor with an open winding will cool off since it isn't trying to run.

[@Rbmar81]

Thanks for the tip!!! Greatly appreciated.

[@renemkunde8498]

. .)

[@vxnova1]

I thought a capacitor was to put the current out of phase which gives the motor additional torque to start,

[@dincerekin]

@@vxnova1 yes but in 3 phase there is no need for the cap cos atleast 2 of the phases always have torque even if 1 phase has 0 torque therefore start up cap is unnecessary

[@SumaiyaAkter-um2lz]

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[@melusiprofessor8300]

Chief you're one of the best lecturers ever, thank you keep it up

[@3Z6I9R]

I appreciate your efforts. Such a good teacher. God I love the internet for this purpose.

[@knowledgeispower3715]

Very informatice

[@knowledgeispower3715]

Nice I appreciate.......

[@LNCMD2023]

I didn’t understand EE when I was in college. That was more than 40 years ago. So I went onto do other things. But this man makes things very clear.

[@ronantingzon4344]

You're the greatest teacher of all time. Tnx for the lesson

[@voltronicug]

That is why I love physics and math,no lies all truth and reality.thanks for teaching us sir

[@golo5000]

You made concept of 3-Phase power in a AC Circuit Analysis so easy to understand.

[@erickademe]

Thanks much Proffesor love your works may God continue blessing you.

[@jennifercharlton-dennis6763]

Shut up Jennifer@Jennifer Rissetti

[@leighton300]

Kick her ass jennifer!!!!

[@briankiwi3480]

Hello, thank you for the informative video. It answered some of the questions I have as I learn about electricity. However, I think there might be a problem with some of the math... if you have a cos b(x-c) + d, you get a magnitude of a, a dilation of b, a horizontal shift of c, and a vertical shift of d. Now the one I think might be incorrect in the video is the horizontal shift of c. If you have +120 degrees, then that should shift left (or negative), not positive. The reason is that c is subtracted, so if you make it +, then you are subtracting a negative. Likewise, if you are going to do -120 degrees, that should be a shift to the right because you are subtracting the positive value of 120 degrees. So if you have cos (x - 120) that means the cosine graph shifts right 120 degrees. If I am misunderstanding something, please let me know because I want to understand this, but I think that might be wrong, so I'm asking for your input. Thanks!

[@JohnBobRoger]

My favorite Proff....the reason imho....total gentleman!

[@Joeelectronicschematicsforauto]

You are the best teacher by far

[@Factory400]

All of these videos are really well designed and presented. I am signing up to for the full courses - totally worth the money.

[@JayLovesProgramming]

Thanks for the great video. I love teachers that explain all details needed and never complicate anything. Thank you, us students do appreciate you!!

[@samarsingh121]

Thanks, sir. very well explained. I am a marine engineer and i am not so good at electrical. But know I may improve. thanks a lot again.

[@aaronwilliamson4045]

Good Job... a retired utility co. project engineer working in protection and control.

[@paulchang3317]

Thank you. You are the best instructor I have on this subject. I probably have this thing more than 30 times since high school, but this is the first time I really find it useful and make sense. It is your "MOTIVE" method makes the new knowledge associate to things I already know, smoothness operation of motor. I guess none of my previous instructors really works in this motor design job. One suggestion, start with a resistor to explain the power thing 3 phase world probably cause confusion. Negative power for capacitors and inductors? Do you mean some thing get colder when pass current to it? If I am teaching this, I will use a running motor as a model only, There is no isolated resistor, capacitor, or inductor. And the power is not just heat, but heat plus rotational energy. Negative power means put breaks on and take out rotational energy. Power hear is Power Flow, with direction, source, and destination. Some of my words may need refine, but I have a clear a model now. on your first video, I watched in 3 sections, about 5 min. each. Rewind a little, paused a few times, until the image of fast turning motor becomes solid at the center of my view. This image probably not good enough for you, but is good enough for me not to push the 3 phase world aside. If a running motor, may be an old record player, is running in the background, with unsteady speed, it might help student. Thanks again.

[@nev7711]

Brilliant teacher. A thorough explanation that makes it easy to understand a concept that can be difficult to understand. Well done.

[@MariaCastro-rv4ct]

Thank you for showing math and science now because you’ve been showing this I got a 100 on my test

[@nadircelik9591]

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[@sjuniper7683]

Thank you! Your explanation was clear and concise.

[@jerichomgwai2504]

Am enjoying a lot here in Zambia Keep it up, you are the best to me

[@gaildimick1831]

Thanks for your teaching, your making good use of time, spot on.

[@piratejack48]

The lightbulb has lit thanks to these tutorials

[@Biggles2498]

In the 1980's as a Cadet Deck(Navigating Officer) on ExxonMobil Tankers(then Esso) we had to learn about the 3-Phase System with electrics on Sluice and Penstock Valves in Cargo Tanks. Anybody without "A" Level Physics struggled with this ! Luckily we had a very senior Electronics Officer onboard (not a Sparkie) who explained it all to us and his name was Tom Morley a huge Guy with a beard.(Epaulettes 3 gold stripes with green in between ...a very rare rank)

[@farhatullahkhan7690]

Nice communication skills . Clear speaking skills nice awesome extra ordinary . Tnx alot

[@m.9243]

Wonderful and gifted tutor! Your skills of communicating your knowledge is superb Sir! Maths was never my strong subject. I wish I had you as a tutor when I was at college. Keep up the great work with your videos!

[@marcoayala7540]

keep teaching.... you will live forever!

[@fgh7832]

Thanks! I’ve been working with electrical and have been meaning to find out what the difference is!

[@amywang4442]

Thank you for the lecture... The last time I encounter vectors was 40 years ago. I am surprised that I still remember things.

[@zekyday8064]

A competent teacher. Thanks.

[@arvybalagtas4671]

You're a great teacher. I learn easily than actually going to college before. 😁

[@eastonbrown3264]

Thanks man

[@arvybalagtas4671]

Omg. Thank you sir for replying! Watching from the Philippines. 😮🙌

[@jeffbrown9039]

I wish I had a teacher like this for my Part 1 engineering class.

[@venusreena2532]

Its crazy how many college students did not like or easily learn from their teachers.. They are paid either way and have political agendas

[@herblevinson7133]

I used to work with three phase power on commercial airliners where it very useful for instrumentation and for high power. Mostly on 400 cycle systems syncrotels and control servos etc. I had studied an electronic engineering course for 3 years at Miami/Dade college.

[@TechnicalEnglish101]

You are an awesome teacher. is very easy for you to get the message across. Two huge thumbs up!

[@williameudy6615]

Why not multiples of three? Six or Twelve?

[@3aba_Yaga]

I am becoming an Electrician and this is helping me to no end

[@artpalacios6530]

Awesome explanation, on y-y it great for balance load and on delta- it’s great for heavy loads.

[@rameshdantuluri3021]

Your explanation is very good to understand.

[@semberlyna.crossley9210]

Wow! Bravo! Some people were just meant to teach!

[@temesgenkibebew5354]

Now I understand what a 3 phase connection really mean. Thank you sir!

[@bond00777100]

Thanks sir. Very well explained keep it up you are doing a good job Sir. Hats off to you...God bless you

[@PaperboyEntertain]

You are very helpful with all your videos!!!!! You need your own channel

[@ackrazam]

I have a question: What makes phases to dephase? How does it come naturally to be dephased by 120 degree? thanks!

[@tedlahm5740]

Very clear and concise. Thank you. Phasor diagram is wonderful.

[@vince6829]

Thank you for sharing your knowledge. Great presentation!!

[@thanhluong8297]

Thank you Sir for the best explaination with all the details You are the best of the best Instructor ..

[@oluwoleoluyemo9512]

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[@christurnblom4825]

I told myself I'd learn more about AC power but my head hurts because I just spent two hours learning about machining, 4 hours learning about the current state of world politics, and how the silent civil war here in the U.S. is going and that's enough for my day off. I don't know anything about these phasors you're speaking of, it just makes me think of Star Trek but I do understand the concept of 360 degrees in a wave vs a circle because I've studied sound engineering a bit. I think I'm going to go play some Far Cry 4. If anyone wants to give me some pointers on where to start in learning AC power, I would much appreciate it. I understand just the real basics of what AC is, vs DC and 120/240, 3 wire single phase, midpoint neutral but if I need to start at the very beginning then I will.

[@thomasldeanjr3337]

Until you wrote, 'silent civil war', I never understood how to label what's going on - I think that nails it right on the head.

[@thomasldeanjr3337]

This is a really good short video just to recap kzbin.info/www/bejne/eXPMhoKHZ7yLaKs

[@josephstratti52]

Ha ha me too.

[@thomasldeanjr3337]

Each phase magnitude divided in 120d interval base angles leaves initial cosign separated in 3 negative directions in all power applications.

[@manyt9739]

I am impressed, it was very easy to understand, thanks for the course. What if I want to learn this and get cert or diploma, is it possible?

[@emilleedmundabril7834]

@Anna Davis 1q

[@kattfranklin6933]

Thanks!

[@MathAndScience]

Thank you so very much!

[@kaydenfarrington7920]

Thanks you for posting this video, incredible lecture. 🙏🏼

[@yi-lingfeng377]

Keep doing videos!! They’re great and easy to understand!

[@tmengistu1778]

I would say simply a great teacher!

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your lesson are fruitful

[@murdock3829]

thank you so much for these videos! clear cut explanations without question.

[@EricPham-gr8pg]

Eyes visual polarization and sound through ears can help monitors buffering circuit depending on abnormalities

[@gallatinnewhire2553]

I enjoyed this video. It all seems to make sense in the context that you explain, but I'm still stuck trying to find an on-ramp for this material. Why are angles a part of this at all? How do angles relate to magnitude, and what is magnitude in this context? I hope we can backtrack in future lessons and explain some basics.

[@user-fw8rd5ud4q]

Wow this man is a legend teacher

[@TambaJalpha-fl9ci]

I like the teaching of the three phase system.

[@milord1814]

I work for the utility industry. We used galvo to check phases make sure the cables are connected right and no cross phases. Am kinda a highly school train doing work where minimal training is needed. When tracing current is comin from the station we used +a+b-c.. just to differentiate on the field low level to the transformers. When cable fail they usually send high voltage of 30 frequencies . Just want to add my 1 penny

[@cirilomags783]

I am interested of your Lecture sir actually i am Electrical And Calibration so iam engage with your explaining about Electrical thank you

[@sureshroopchan416]

Well done. Simple and clear

[@markgeralfelcabilin9247]

this is very nice lesson like me im first timer electrician but im only electrician in my company pioneering.. thanks master ..

[@kenswitzer4133]

With a little theory background he is very precise with his tutorial.

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Thank you very much for these videos, they're real treasure.

[@michaelfajardo9832]

Very very clear and informative

[@pererabenjamin8681]

You are awesome speaker sir god bless you all family

[@martingonzalez529]

Thanks for all these great videos!👍👍👍👍👍👍

[@13-ahmedmohamedhassan73]

which 3 phase connection blocks undesired circulating current which 3 phase connection corresponding to a higher phase voltage with same generator line voltage the neutral line cross section area is usually double or triple or half that of other conductor lines

[@joshbreaksk8IN]

I came across a oven yesterday that had had line 2 and 3 switched. It should just cause the motor to run wrong it wouldn't cause the three fuses to blow would it. I wired it correctly replacing the fuses today. Replaced the transformer yesterday thinking that was the short in the system blowing the fuses noticed the wiring after that, elements all checked out fine. The only thing really remaining is the wiring but I'm not sure line two and three being backwards would cause the fuses to blow. It could have been the transformer just commenting for some insight before turning it on today

[@rodplath9777]

I have a question. I don't understand how there is expected to be 220 vac across L1 and L2 of a "50 amp RV connector"when both originate from a buss bar in the fuse box. Are they not at the same potential? could it be that they some how are not in phase because of the duel breaker somehow ?

[@WorldEngineersOnline]

What are confusing are the Neutral Cable & the Earth Cable in the Three Phase Delta & Star, and how they relate to different Systems - TNS, TNCS, TT

[@kaokaoylan4510]

Good 3 phase intro! makes the next smoother!~

[@denispalmer1937]

no mention of Delta and Y winding, they are vastly different and the outputs as 3 phase are the same but if you us a single phase be ready for some changes,

[@josephg.orbiso]

I always thought I was really slow in class until I found your lectures

[@haxificality]

Explaining how a 360º circle is equally balanced in 3 parts when divided by 120º - FOR HALF AN HOUR. Thanks God I made it to the last second without yawning.

[@FDHuston61473]

This guys the best.

[@AtmaS]

Excellent and clear explanation. Thank you.

[@ahmadhussainwebshare1001]

God bless you 🙏 excellent work

[@ronbonick4265]

quantitatively expressing one's self - based on a multi variant complex Va = Com ~ signactivity + 120 deg variant = object anallisis = or - . Correct?

[@purnabahadurgurung3235]

Very good lectures

[@josephsheridan7885]

Should i get a 220 step up to run washer and dryer and freezer add to my shop?

[@eastky1901]

Thanks. I've ben looking for months for a simplified teaching of 3 phase. Ty

[@knowledgeispower3715]

Very good training session

[@jasperjones6962]

How do you know which line the 3 phase goes into on the equipment mine surface grinder says line 1 2 3 which line takes the three phase wire?

[@EricPham-gr8pg]

We could eliminate tranmission if self power special medical equipment or critical system like pacer or time keeper prevention of influence outside. So piezoelectric may open new road then convert it into internal 3 phses for memory data

[@seintv1557]

very exellent tutor i really love it.. very clear..