Lecture 40 - Synchronous Machine

[@kunalshah4753]

Having attended 40 lectures by this great professor has been a habit to me...now back to normal...you make electrical easy to me..
So much fundaments have cleared after this...thank you sir...thank you very much..!!

[@msoe1965]

I must say .. That I benefited greatly from this wonderful class (took all 40 classes)..
.. Thank you prof. Umanand.. Thank you NPTEL.. The Indian goverment...and people of India...
From Iraqi Kurdistan

[@VergilX20]

You are a very good teacher sir. Thank you very much for sacrificing your time to help those who needed a clear explanation.

[@clevy031]

Um writing my Power Engineering Exam 2mrw and your lectures have been of great help thank you very much

[@fabianm.2982]

This man is good.. Hands down. Phasors always makes things easy to understand.

[@tommydyhr]

Thank you for the great presentation. It was very easy to follow, for someone who's barely been in touch with AC machines before.

[@develpcl]

Thanks for your great explanation.
Simple, intuitive, and with no need to complicate things with awful equations.
Greets from Santiago,Chile

[@magicians2443]

Thank you Prof. L.Umanand!🙏

[@prashantsinghthakur7722]

Really thanking you sir...........its too much easy to become an electrical engineer only bcoz of u sir.......

[@bigvaderb]

Such a good lecture. Don't know why I even bothered attending lectures when your lectures are available.

[@jibranhayat8017]

Very good lecture, I wish he had a more detailed lecture like Induction motor , Yet thank you so much

[@koukaalgerienboy]

in 23:22 you had forgoten to devide with 2pi in equation of synchronous speed thank you for all these lessons

[@mnrajesh11]

ur lecture is good and explained how synchronous motor is used as pf correction machine

[@josephweru9203]

Thank you Sir your lecture has been of great help to me GOD bless you

[@deepakrana-nm5kt]

sir, please upload lecture of synchronous machine after lecture 40

[@Devisriprasad1000]

Please dont delete this videos ever.... Please....

[@modyskyline]

thanks very much for the added value, i really enjoyed this class.

[@LennyGrayGuiltless]

Thank You so much for posting; These lectures are very helpful

[@rahulamiable61]

Awesome. Seems a cake walk now for an electronics engg like me..thanx a lot sir.:)

[@suniljain4788]

sir you are great teacher .
nptel please upload a full series of lectures on synchronous machines by Prof. L. umanand

[@hassanshraim4718]

Really excellent lecture and professor

[@tunanin]

I am really grateful to you sir and as well as uploader

[@sanjaykumar-zn3tp]

thank u very much sir.....its really of great help to me..

[@sarsyr20]

thankyou sir for the lecture.it has helped us a lot.

[@vikastripathi8900]

thank you sir. iam really grateful for you give me the basic knowlage of electrical subjects.please give the knowlage of power system also. thank you.

[@ganesanmeganathan]

thanking you sir really u made me under stand i am 39 yrs old

[@AhamedAnaz]

wow!!!!!!It was nice. I really enjoyed watching it.

[@vinitsrivastava9714]

you r realy a GURU sir.....
i need this explanation really
thank u sir....thank u
respected sir
pls give some explanation about alternator phasor dia...

[@superdudeee2345]

very good lecture sir........ please upload a lecture on different characteristic curves of various machines...

[@AkashBV]

thank you so much..i clearly understood the concept

[@debasishacharya4797]

Sir please check...the rotor induced the polarity of North and South gets reversed as u directed...

[@HAMDECO]

THANK YOU SIR LOT. YOU HAVE A GOOD DEEP EXPLANATION

[@madagalaharivardhan9412]

Sir at 22:42 1polepair(Pp) =2Poles(2P).then N=(120f/((1/2)Polepair) that equal to N=240f/polepair

[@madagalaharivardhan9412]

Sorry sir I confused and got the final answer.

[@madagalaharivardhan9412]

I got this doubt by assuming that half of the pole pair is equal to one pole... i.e (1/2)Polepair =1 Pole......and I forgot that WITHOUT MORE THAN TWO POLES (OR EVEN NO.OF POLES) THERE IS NO CONCEPT OF POLEPAIR.

[@akkaratwong]

thank you so much sir, you help me alot,

[@iAmAHobbyist]

this is a great help! thank you and keep it up!

[@brrrrrradical]

Thank you for putting this video up, much appreciated :)

[@sayanbanerjee4496]

air will you suggest me your video related to synchronisation by dark lamp method, one dark two bright method??

[@sharadchoudhary6288]

At 44:00 Sir said that active power is controlled by excitation control whereas earlier he said that excitation controls the reactive power. Kindly clarify

[@navsquid32]

2:10 Suppresses a burp.

[@abantikasengupta8211]

under no load,there is no current in stator.Therefore there will be no rotating magnetic field in stator.So under no load what is the thing which is rotating with rotor in synchronism

[@manikantasinisetti]

easy way to learn the concepts thanq you sirjiiiiiiiiiiiiiii

[@godseeker11]

thanks very much, god bless

[@MrDilkhushsaini]

Sir ,Upload Full videos just Like Speed Cotrolling,Braking,etc

[@vinitpanchal514]

nptel.ac.in/courses/108106072/10
go on this link and there is pdf of synchronous machine u can learn from there

[@star4247]

@BlackGypoMagic he means Ns or the speed of the shaft

[@Besiani1000]

really nice and clear explanations. First video to watch, but for sure will continue with other ones. by the way, what kind of computer is that you are writing in?

[@coffeeisgood102]

Very good video. You covered a lot of ground.

[@apichartekmaturapot3349]

very good lectures sir :)

[@ksenthilvpm]

May God bless you for your wonderful work
Did you wrote some books for electrical machines.

[@deepakdhingra9417]

Very Thanku you sir .this lecture is very useful for me.

[@aadityaballeda33]

except from 26:26-26:46,rest all lecture is very very slow paced sir,good explanation though.but my advice is to go a bit fast.thank you veru much sir!

[@krishnathamatam5488]

that is a very good job..

[@nagatejakadali3527]

sir teaching is very good .but we want lot a more about synchronous machines

[@sandeepreddy240]

Thank you sir......

[@Devisriprasad1000]

Never delete these vidoes

[@tusharnimbalkar7754]

sir, should we get more about synchronous generator.Please upload next lectures.

[@achinbhayare4702]

Worth watching..

[@hiteshnigam7312]

very nice .... and full of conceptual!!!!
plz upload the more series.!!!

[@vinitpanchal514]

nptel.ac.in/courses/108106072/10
go on this link and there is pdf of synchronous machine u can learn from there

[@jithukumar9562]

THANKS U SIR VERY GOOD LECTURE
AND GOOD

[@nhannguyenuc2232]

i think it is a T5010 Lifebook of Fujitsu. I also have a same.

[@ricabanago407]

it helps me too much... tnx..............

[@sharadchoudhary6288]

At 22:35 in Ns = 120f/p p are the total number of the poles in machine , but sir has described it as poles per phase. May please this be verified

[@Omkar-wr1cw]

Thank u sir.sir please upload next part of synchronous machine.

[@moinkhaja]

good lecture

[@tatosan05]

Thanks a lot sir

[@dharamveerkumar5062]

Need to improve video quality?

[@MsABDULLAH24]

yr plz some1 tell me that where are the next videos of this lacture series...??I mean 41st,32nd and so on..!!!
and obviously ,thanx alot sir L.UManand...:)

[@theliberal9419]

You should go to the channel video of nptel

[@AbhilashPanigrahi237]

Brilliant!

[@abiramkmr]

very impressive.......

[@parasmanimeena1287]

thank u so much sir its really help me ..........

[@sapnarai724]

Sir plzzz upload more chapters of synchronous machines.

[@randomengineering7000]

Thank you so much sir.

[@ladi81991]

too good sirji........

[@theliberal9419]

Please see 7:45 in lecture here I confused that coils are displace 120 mechanically or electrically. Help

[@sharmaprateek1]

thank you Prof.

[@dorathyappireddigari7566]

Pls give more explanation about altetnator

[@이진규-f9i]

excellent lecture. thank you for your help to solve my problem(=misunderstood)

[@ramchanderverma2410]

very good lectures sir

[@ramchanderverma2410]

very good lectures sir

[@ramchanderverma2410]

very good lectures sir

[@Fred6191]

good video but can u plz make it precise in future

[@star4247]

@BlackGypoMagic : he means ns or shaft speed

[@SravanKumar-ce3cb]

thankyou sir very nice lecture

[@sahilkhan-ej3cj]

sir u left halfway in synchronus motor . plz upload some more lecture .

[@divyalalr.k5877]

Nice lecture. . but the nose sneezing sound makes it bit irritating. .

[@funtime3373]

Thanking you

[@kalpesh0250]

very very help full

[@shaiksameer8854]

Thanks sir nice lectures

[@MrKailash231289]

really gr8

[@DRockfilm]

Sri, upload machine 2! as well as machine 1

[@sri279]

how do we say the back emf produced in synchronous motor is opposite to the applied voltage?

[@abhishekghosh1998]

Simply by Lenz's Law...

[@whiteboard5824]

thanks a lot sir...

[@Jack-99993]

A little bit mistake
Ns=120f/P
n= 2f/P

[@amgmanit]

Can anyone tell me sir is using which tablet ?

[@star4247]

he means Ns or shaft speed!

[@neelasamandar]

Thank you sir

[@coolshapu123]

thanks

[@mohammadjaish5134]

thanku so much sir

[@macmula11]

wish i found this earlier got an exam tommorow FML

[@rameshgundlapally9848]

Sir please upload new classes sir please

[@venkyharry8716]

nice...........

[@raghunath3063]

sir,
what happens when AC supply is given to the rotor of synchronous motor.

[@ashutoshranjanAshutoshRanjan]

+Raghu Nath it will lead to introduction of double frequency component in induced voltage and uniform torque is never achieved.

[@sharmlall8950]

why are generators connected in star

[@astakalasuswith6946]

emf equation of an ac generator?