How does an Alternator Work ?

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This video gives an elaborated explanation on working of Alternators/ AC Generators with help of animation. Alternators are also referred as Synchronous generators. Along with construction details of generator, functions of slip rings, armature coils, Automatic Voltage regulator (AVR) and pole core are also well explained here.
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[@loading...7583]

You are an asset to humanity by taking your time to create videos like these to educate the rest. God bless you

[@majermike]

spectacular quality for youtube

[@aram8832]

Man you can't get these feels while reading the books and it's pretty hard to imagine thanks for animation now it is easy to imagine.

[@giorgiobeltrami7333]

esiste una ditta che lo produce da poterlo comperare? grazie

[@aram8832]

@@giorgiobeltrami7333 I don't know about that but I can recommend you some books if you want to know more about it.

[@Mohammed-hb8rc]

🌹💯😘

[@makola6832]

@@aram8832 can you please reccomend those books

[@cobretticobra7911]

Ya you’re lucky man

[@rifaturmil1290]

this 5 minute video explain shit better that my professor with his 50 minutes of head torment

[@duje65]

exactly

[@glassofmilk7141]

lmao

[@igorrocha5267]

Rifat Urmil it happened with me also. The professors seems don't want which the class is knowing about it. They lefts majority class in unknowing. Until nowadays I wonder if it is displeasure to explain or didactics missings.

[@deshunkelly3206]

what was your major?

[@Robbinpenspinner]

Cannot agree more :D

[@adult484]

Dear god, you guys are like saints. I understood Alternator better from this one video than my professors 100 minute lectures. My basic understandings became very clear and I did the maths from my text book. I got an exam on this tomorrow and hopefully I will ace it. :)

[@khandokarmunna7203]

In what profession are u now?

[@user-ob2zz2zk2x]

Be a Muslim..coz Islam is the only religion based on real proofs...and if u look it up sincerely , you will find it much more clearer than this video u admired

[@okwunnaolive-okafor1981]

@@user-ob2zz2zk2x Alternator was invented by christians

[@jaykeane25]

Did you ace it??

[@kumarpavan1392]

You have explained physically and practically showing all aspects. This is very help to realize the students how Generator works. This is real education.

[@thulaninxumalo8864]

I wish youtube was there during my days at school.

[@groundrogue9444]

You mean. I wish youtube was here in my days of high school

[@lmaooaml9737]

You mean i wish theres a thing called youtube in my schools day?

[@zekeriasvarg530]

youtube is a threat to school but as youtube is controlled by the banks its censures a lot of information to

[@Earzone63]

@@jamesd7700 pls delete your hate lol, none of this people have english as their mother tongue and i'm guessing you yourself are not bilingual ! Who the F cares about youtube comment grammar haha, u guys are funny though

[@jamesd7700]

@@Earzone63 deleted it for you Mr Nice Guy

[@glennpallad9637]

The best video of generator illustration I ever seen, this video really helps a lot for me to understand how a 3-phase generator works. Thanks!!!

[@abiaraymond9159]

Very good explanation on the principles of an alternator, thank you.

[@ankitfernandez370]

This channel is the most helpful I've ever studied with !!

[@et4493]

phenominally detailed video. Absolutely loved it! Thank you guys SO MUCH

[@senortanko]

Thank you for producing this very helpful guide to the inner workings of alternators.

[@jorbamax1080]

Such a beautiful explanation as compared to others till now I have seen .Thank U for teaching so transparently.

[@hobbilis6460]

2:17 narrator: it is clear... someone: chip narrator: ... that ... frequency

[@harshitrautela6585]

at 4:34 also

[@embuscadochifreinexplicaca5960]

I was reading this comment at that exact time 🤣👌

[@ItCanAlwaysBeLouder]

you have saved my grades for the first year of uni! These videos are absolutely fantastic and so clear and easy to understand! thank you sir so so so very much

[@lildiahreeoff]

What you work in now ?

[@yuvaraj1386]

You are a legend, Many times I read but can't understand if understand something will forgot in two days, you are made me understand in easy way. Thank god(lesics)

[@InderSingh-es3en]

One of the best video to understand the alternator working..Thank you.

[@RareSalmon93]

I've learned more in this 5 minute video than I have after hours of reading my textbook. THANK YOU

[@albertobeberto2625]

me too

[@ravigavsane9646]

I am an engineer of electronics. Spontaneously it came into my mind and heart that it's my duty to like and appreciate your fabulous work( i am little busy and lazy too ). truly you made a fine video.

[@silvanacarvalho4534]

Thank you. Vou dos a Nice job.

[@silvanacarvalho4534]

You dia a Nice job.

[@RutulPatel]

This is literally the best video available to understand working of alternators

[@legenzary2758]

Just a 16 year old reading these comments and doing his project. Also i have never seen an alternator in my life but thanks for the basic understanding

[@fgogo]

Awesome. Excelent tutorial! Congratulations.

[@jontytailor6925]

Please keep on uploading this informative content

[@hugo15hoquei]

OMG, it's explain 99% of my doubts! Thank you

[@Sangeeth-9999]

Really great animation work! Learned a lot from this channel. Wow!

[@ashishsingla9713]

You are Doing Great Work Sir . Thankyou So Much. Very Helpful Videos. With the help of these videos, anyone can easily understand the principle and working of important Electrical Engineering topics. May God Bless You.

[@scottj4462]

I think the poles are labeled incorrectly, as typically a N pole should have magnetic flux lines going outward and inward for the S pole (the flux line arrows appear correct based upon the DC flow through the rotor coils). And the current should be maximum when a rotor pole is directly across from a stator winding, not when the winding is in between the poles. Then use "Flemings right-hand rule for generators" to get the direction of the current. As best I can tell the current directional arrows might also be backwards, but it's hard to tell with the current shown as zero at the incorrect time. Otherwise it's a pretty nice animation.

[@marvnet8898]

I think you are right but how cant it be that nobody say anything about that? How can it be that an expert with millions of subscribers says something so wrong? Faraday Newman law is the base for this kind of things....So are we really right?

[@huehui]

@@marvnet8898 Not a big thing that a million subscriber can say something wrong, all over they are also humans.

[@_shivanism_]

This video is very useful. It's gives a complete overview of the concept. Thanks you for uploading it!

[@MrNaveensriramdas]

This is good video for introduction on AC generator. Thank you for sharing.

[@jeromewhelan6723]

Nice video. I believe that, if you view 01:28 of the video, the rotating field has poles at 9 o'clock labelled as "NORTH" and 12 o'clock labelled "SOUTH", but the winding direction is the same viewing the pole face: this seems to be a contradiction of the right-hand-rule; the winding directions should be opposite on the adjacent poles.

[@HariPrasad-le4qz]

Yes jerome whelan, the direction of currents there should be in reverse direction

[@alwonggeorge1843]

jerome whelan hi

[@BrRznd]

I was going to comment the same thing. However I am not sure whether the currents should have inverted directions or just the labels N and S should be inverted.

[@ryanhagge7695]

YES..GREAT VID GUYS!!

[@SLOTERification]

Thank you for the straight forward explanation of alternators. Very helpful :)

[@alchemy1]

Read my 3 comments up above and answer them clearly if you are so impressed and understood as you claim what the guy is saying. It is straight forward to you so you should have no problem answering them.

[@faizanyounus5387]

Great explanation sir, cleared all my concepts..!

[@uv9493]

Excellent animation!! Thank you, Sir!!

[@tapanmodi2145]

This is possible or not? In generator stator side we give AC input so as time varying magentic field is vary and so chainging magnetic flux is Link with armature and emf is produced So here there is no need to rotate the rotaer to turbine?

[@sandeepa2732]

Thx alot man You saved me for my tomorrow's exam.. Now i understood what exactly is an alternator

[@chanakyasinha8046]

Are you still saved

[@Carbon5.0]

CHANAKYA SINHA lol

[@sandeepa2732]

Nope, After 5 Years, i'm Quarantined ...

[@Carbon5.0]

@@sandeepa2732 HAHAAA we all with you

[@kilabotsakto5413]

Thank you for sharing this information. Hope by your next animation you'll shown the step by step the arrangement of the armature winding 3 phase generator and 3 phase motor and its wiring conection with explanation.

[@ramahrk]

How I love Lesics just for the mere fact that they always boost my love for engineering every time I watch their content.

[@jarodlegault3853]

Excellent video. Before watching this video I didn't understand how the windings were physically laid out in the stator and rotor, but now it is very clear. Great job!

[@mohanjayaram5774]

Super visual explanation

[@andrewskyworker]

this is real Good , thank you for your great work

[@Djxt250]

What a great video with perfect illustration! Thank you a lot!!

[@moshiourrahman]

i can not thank you enough....i just love you now....can you do something on dc generator and and dc motor too... god bless u..

[@Lesics]

Yes they are in pipe line. You will see them in 2-3 months. Thank you :)

[@aryankhan7211]

Moshiour Rahman VG vvv

[@isherrao]

Great vedio and precisely explained , u r doing a good job

[@ak-pm3se]

great job...nice and compact with technical stuff discussed!!

[@jeylful]

Excellent animation! Thanks for sharing this!

[@chibselectrical4689]

that was outstanding .can you post one on how to calculate the size and number of turns of each coil?

[@ejw7281]

Great video. Greater detail then all the others. Had one question. Are the magnetic lines of flux "flowing" in the correct direction on the rotor windings? They appear to be south to north instead of north to south.

[@BaldurKhr]

The lines are not pointing correctly. N pole should be pointing outwards.

[@marcleblanc9168]

Fantastic explanation, simple and concise. Thank you

[@hairygoose1]

Excellent graphics and explanation - thank you

[@jarodlegault3853]

Your magnetic flux lines in the rotor are shown going from the south pole to the north pole, but I believe they should be going from the north pole to the south pole. Aside from that, great video!

[@pickneydem4087]

all this information goes through one ear and out the other

[@mjbuttry8622]

pickneydem same

[@johnleuenhagen9068]

Idk, this video helped me a lot

[@lildeadshot2630]

That's why I use headphones

[@sanjayyadav-uu2rw]

Bhi phir tumko kavi nahi aaye ga samaz me

[@sandeeptiwari3655]

Dead shot .😁😁😁😁 Nailed it😘😘

[@RickJando]

It didn't take long for me to get lost ! However, this is a great educational video thank you. I will continue to try to work it out !

[@conceptsinbiblicalhebrew4866]

Thank you, very much, for this video. Helped me a lot!

[@076syafiq]

nice information

[@TheSpyFishMan]

if the armature coil was fixed to a second rotating axle, you could create an electric clutch by adjusting the voltage on the rotor and armature coils.

[@ronaldcolonna3721]

TheSpyFishMan I

[@TheTish24]

This is amazing! thanks sooooo much.

[@mrakhil7849]

it really help me in my engineering studies

[@bushraalshehhi437]

I wich I had a Professor like you teaching me the subject

[@virajdeshmukh181]

Me too

[@hasimuddin8135]

Nice Tutorial ! Greetings from Islamic Republic of Pakistan. Please keep making these Interesting Educative tutorials ;)

[@mirsabirali1737]

hi

[@meenakshisuresh8415]

When did Pakistan become Islamic republic of pak?

[@mrnothing249]

Very comprehensive explanation and good animations as well

[@hightime766]

Thanks bro.. your explanation is outstanding thanks once again🙄🙄🙄🙄🙄

[@csmith9684]

What a great video. Had no idea how alternator made/works. So what happens/causes my car's alt to not work anymore? What is the usual part that breaks? Is it not spinning & all the internals are still good or vice versa.

[@venugopalyadlapati6425]

symptom for alternator failure battery charge gets down probably firstly a service or battery signal arrives in the dashboard cluster finally cars get off if it is an electronic injection. check out if abnormal sound coming, if bearing, if not check the mounting and belt tension and then finally check the terminal connections after inspecting the above you please start your car and check the voltage with the multi meter if the voltage is in the range of 11 to 12v for five minute interval, then your alternator is working other wise please visit the nearest dealer.

[@JL-ld1do]

in most cases the brushes get worn down and stop giving the needed voltage to excite the field. Nowadays folks tend to just replace the alternator thinking if the brushes are worn the bearings are probably next. Soooo, the market has favored that and alternator brushes are not available for every version in the field. I tend to disagree. If you can find brushes for your alternator then inspect yours. If the brushes look un-even, or are pitted, and look like they have been burnt replace them. Its a pretty simple process on most vehicles. Take the opportunity to clean the slip rings with a commutator stone too... It will most likely get you charging again!

[@srhondapro38]

If permanent magnets used for 3phase generator like this shown the voltage in the rotor field is then non adjustable ...so voltage regulator job lot harder and additionally this generators are gigantic would require very big permanent magnets .Permanent magnets have constant field production this would be very difficult to handle as well expensive.

[@WizzRacing]

I think he said PM when talking DC motors which would be correct. As these are single phase motors!

[@brinkshows2720]

Yup, PM generators are more usefull for things like small wind turbines etc where an inverter is connected to the DC supply of the alternator.

[@anupdeshmukh6299]

Very informative and precise video. Thank you!. Great job. Keep it up.

[@eer143]

I love your teaching patterns

[@freeguitartips]

thanks for the awesome explanation! what's the amazing software used to show the alternator's functioning?

[@marcustornea2821]

Sorry for the question, but since the rotor coils are excited by DC current, we would be using electricity to make electricity?

[@saqibmumtaz4260]

It's good to generate 1500 MW by using 250v as starter. Isn't it bad ?

[@Deinonuchus]

The DC generator supplied the DC current that is converted to AC. The motive force for the system is provided by an outside source. The alternator in your car, for example, gets its motive force from the alternator belt attached to the drive shaft of the car's engine. It's not clearly explained in this video.

[@danireula8645]

Something like that, anyway you need an external mechanic work to really generate electricity. You can also see this kind of electric machines with permanent magnets such as the brushless motors, instead of the rotating coils. These machines are also used as constant RPM motors, when you have variating loads Ex. an elevator. Also in the past they used this machine as a cos fi corrector due to it can act as an inductive load, as any other motor, or a capacitive load. Instead of using banks of capacitors. Anyway the rotor coils use like a 1% of the electricity that consumes or generates the machine. These datasheets are studied in every single motor and there exists a lot of maths to determine the parameters.

[@naruto-vr1kk]

Very true.But a small amount of DC source i.e. Dc input is required.Afterall the output we obtain is a 3phase AC voltage.😁😁

[@nilstancabag695]

I was asking the same question good thing I found yours..lol so what would be the difference to this kind of of generator to a generator with permanent magnets? jsut correct me if my statement is wrong :3

[@kundankumar-hi1cr]

GREAT VIDEO... thanku so much for making this type of video ... great animation with good explaining,,,

[@rublar75]

Finally understand the exciter purpose in this video. TY

[@Mallorcainforma]

Minute 1:29 I think there's a mistake in the sense of the currents (just 2 of the coils), because it doesn't correspond with the magnetic field shown. Can someone check it? Thanks!

[@_instanze_]

You are correct. The top and bottom coils have currents going in the wrong direction. The direction shown should produce North poles not south based on the right hand rule of magnetic fields induced by looped currents (up for CCW and down for CW).

[@axelf9169]

I noticed it too, they placed there N and S at the wrong places

[@BrianSu]

why doesn't the rotor use permanent magnets instead of DC electromagnets?

[@Lesics]

It is well possible to use permanent magnets. Small alternators usually run with it.

[@lindakurniawati5249]

one of the disadvantages of using permanent magnet is the magnetic field relatively constant, isn't it?

[@BrianSu]

Linda Kurniawati yes but that doesn't matter because the amount of drag on the rotor will always commensurate with the load (electrical resistance) on the coils so the more current you drain the higher the drag and vice versa.

[@TheSoxmania]

because then it would be a dynamo XD

[@BrianSu]

TheSoxmania nope because you will still have magnets swiping across the 3 pick up coils. As a magnet nears a coil it produces electricity in one polarity and does the same and it moves away. A dynamo is made by rotating the coils within a permanent magnet field, the rotor's interface will be brushes instead of slip rings.

[@jagannathank6531]

I liked the explanation very much. Thank you for this video

[@AbuTaher-eh1is]

very clear and concise explanation within 5 minutes.

[@samruddhkulkarni5319]

Engine peak rpm is around 8000 and with the pulley ratio of 3:1 the rpm at the alternator becomes about 24000. So if I am not wrong such low rpm range ac generators are not used in an automotive industry. What kind of an alternator have you considered in the video? and where are they used?

[@fidelcatsro6948]

hydroelectric power generators maybe running on low rpm...wind power also low rpm...better to be low rpm, because less wear and tear to the parts

[@zesty2023]

Friggin science man..

[@SummerFunMan]

+Ian Knau What about it?

[@zesty2023]

is amazing

[@SummerFunMan]

Okay, good, Ian Knau. Thanks for finishing your thought this time.

[@SummerFunMan]

Uh, nope, Ian Knau! But I can see that *you* are, since it looks like you got all butt-hurt and took offense to something where none was given. What's your big beef with someone who sincerely *thanked* you for making yourself clear after you hadn't been before, so much that you figure you should be a big *dick* in exchange for their gratitude?

[@zesty2023]

Maxx Fordham WOW.. shut the fuck up you friggin arrogant piece of shit.

[@keenoWHUFC111]

most manufacturers don't use the slip rings any more to reduce maintenance time/cost, but a cracking video nether the less!

[@quntao8776]

Thank you，so easy to know the theory about the generator through this video!

[@SANDSHOE]

1:28 wrong diagram representation. Working on without magnet projects vlog. You can watch it not a promotion

[@ahmedkessemtini3168]

Thank you. I was very confused. Nearly thought that something is going wrong with me .

[@CombraStudios]

What's wrong, the polarity?

[@Dhanush-zj7mf]

@@CombraStudios the direction of field lines is wrong. Use right hand rule you will get that he has drawn the feild lines in the opposite direction.

[@CombraStudios]

@@Dhanush-zj7mf Hello, I just used the right hand rule for the 1:27 pic. It shows the N coils are correct and the S coils show cyan arrows in wrong direction

[@Dhanush-zj7mf]

@@CombraStudios yeah. I am said the same

[@lightyagami2015]

1:55 isn't magnetic field comes from north pole to south🤔

[@ShahinParvej]

Never seen such wonderful explanation. Thanks @learn Engineering

[@kaavyavenugopal9008]

This really helped! Thank you so much :)

[@jrnascimento1448]

Is there an Alternator that uses magnet to generate magnetic field or all of them only uses electricity to create the magnet field?

[@alvarogarriguez6165]

It does exists its called fixed magnet alternator.

[@b43xoit]

I had a magneto on my bicycle.

[@anonimodagameplay7307]

Vim pela Vivi

[@javierferrer4634]

Thank you! It's very helpful.

[@thamizharasanarasan5658]

Such a great video, to understand about the Alternator. This is real Engineering education. Keep doing good things.

[@sartoriusrock]

Hire a new audio editor :p

[@danielpasaperamontalban9787]

someone can tell me why magnetic field comes out from south pole and comes in to north pole? Isn't it on the contrary?

[@Dhanush-zj7mf]

its just that the notation, no problem...

[@syafiqdin1442]

Thanks for this video, I find the explanation is very clear.

[@krupaldeshmukh8392]

Always giving best explanation and proper approach to the concept...👌👌👌

[@hi-fidude6670]

My bycycle can power a fridge

[@claydo364]

Wat size fridge? With power you can supply anything...even peddle power...hamsters do to..ya .monkey 🤣🤣🤣🤣

[@SpeedX405]

Bicycle*

[@gnagimov]

if you have 100 thousand million for all the alternators equipment, sure

[@nukedaddy]

Not to look a gift horse in the mouth, but me thinks English is not the writer's first language. I think the narration is done by a bot.

[@Lesics]

Yah, I am from India. English is not my first language.

[@OwenIverson]

your accent is pretty good. sounds like you just did some post editing :) well done video.

[@darxcide7375]

Learn Engineering Hey man love your videos! If you ever need a narrator or lessons in British English pronunciation I would be happy to help!

[@pitcoll5505]

one of the best sounding bots i'm sure its feels ok to listen to it :)

[@TonyLing]

I'm from London and CGI animation is not my first language, I wish I could do it as well as you have here

[@AkashSharma-qg7ex]

This is the first time I am learning something through this channel and it really felt wonderful.. such an amazing explanation with awesome animation.. really helped us understanding in much much better way .. thanq very much sir 😇😊❤️

[@victorcorreia2108]

really great explanation. Thanks a lot!

[@albertjackson9236]

Alternator is a misnomer, it is an electrical generator. End of story.

[@mithilsequeira2467]

alternator happens to be a part of the generator genius

[@SAM21358]

I don't think so. As the produced emf by AC generator is of alternative nature (i.e, the curve of produced emf alternates in a certain period of time), it is called as Alternator. So, it's not a misnomer.

[@chargerdave2046]

Watts this about...ohhh... this hertz me as it applies to my current situation... i know...you blew a fuse... not funny... im shocked... i will go ohm now and watch the electric circus

[@punky2deep]

hahah good one!

[@xIM2QIK4Ux]

Haha, I tried to resistor conducting this comment but my current stater mind got amped to reply with more alternating cycles on words. Hope you're not negatively phased.

[@yawargamerzx6266]

Charger Dave woah...that was cool

[@andrewpost9335]

'Ba dum tss'

[@radanju3]

andrew post 'Ba dum DZZZZZZZZZ'

[@user-uw6bw5dy2d]

الف شكر اخي الكريم شرحك واضح ارجوامن الله ان يزيدك علمآ فوق علمك

[@sarpsimpson8369]

Thanks very much for this helpful and inspiring video.

[@421sap]

In Jesus' Name, Amen ✝️✨

[@gilberthvaldez2476]

Amen

[@SackbotNinja03]

Bruh what

[@khalidkeetah523]

this video is good and so useful I've just learned how it works thanks alot

[@keremsahin5482]

Many thanks for this awesome explanation video. You guys are the best!

[@empowered_relationships]

Nicely explained. Thank you.