What a great explanation of this technology. I'm rebuilding a genset at the moment, and while I have a good knowledge of the diesel component, the generation side was puzzling. It now makes a lot more sense. Thanks for taking the time to put this tutorial together.
Engineering (machinery, code, networks and so on) would not be the same without India. It's always a channel with hundreds of thousands of views and few subs that explain the important bits to give students all over the world the "aha!"-moment they need. Shoutout to "manchester encoding in two minutes".
Excellent video and very simple explanation.Great work Rit Wik....The doubts about alternator was cleared very easily. Certainly I will suggest your videos to all my technical friends.Thanks .....
Rit thx for the video , but how does the regulator supply power to the exciter stator, where does this power come from? I know the regulator senses the output voltage , but is there any type of other input
Thanks very much for the amazing video, very important information with really simple way. but please can you give us some references for further studies about Self-started Self-regulated Synchronous Generator? and many thanks again for the illustration.
Hello Sir clearly explained. If two generator are running in parallel , then both alternator KW is same but amps is different then how to make equal the amps
The recorded audio amplitude of this video is so high that the signal is "clipping". Please reduce the gain for future productions if you don't mind. Thank you.
Hi Ric would you then say that the AVR operates as the power source for the exciter? or the exciter is fed by the AC output of the main alternator itself?
there are various designs of BRUSHLESS ALTERNATOR, the example taken here shows that Exciter Stator is having residual magnetism. The AVR gets input from Main Alternator (Main Stator) output (AC) and provides excitation current (DC) to the Exciter Stator.
So if I can wrap my little head around this, the only reason for not using permanent magnets in the exciter is for output regulation on the main stator? This should be able to be controlled by alternator rpms aswell?
by varying the rpm of engine output from alternator can be changed, but in case of AC output the frequency (hz) will also change, that is why all AC Generators are fixed rpm. DC generators have no such problem, that is why DC generators are variable speed generators.
bookmarked that video coz i'm in the process of buying a self exciting alternator.. and that will be helpful in case my alternator get in troubles.one question tho... i haven't understood yet does self exciting alternators need external motors to generate electricity or not?? on that video i understand that the internal motor will move the rotor on the alternator side.. have i got it right or wrong?
Hi Rit, excellent video! I have one query, for the alternator to be self-excited I thought that the process relies on the residual magnetism of the main generator rotor however you mention the residual magnetism of the exciter stator? a clarification would be greatly appreciated! thanks!
Exciter Stator has residual magnetism. When Rotor moves AC is generated in Exciter Rotor, gets converted to DC by Rectifier Assembly and goes to Main Rotor. Moving Main Rotors induced AC current in Main Stator. I hope now you are clear ? Feel free to ask again if in doubt. Thanks Katerina...
Hi Rit, thank you for your reply! my question is: when an alternator is started again, why is the exciter stator residual magnetism used and not the residual magnetism of the main rotor? and where does this induced voltage (from the residual magnetism) go? does it go to the amplifier in the AVR? cheers
Hi Katerina, it is a very good question !!! Theoretically Main Rotor residual magnetism will generate output in Main Stator terminals. In practical application, the load connected to alternator fluctuates. Examples of load are AC, TV, Bulb, Washing Machine etc which are using the electricity generated by the alternator. If load reduces, alternator output will increase and vise versa. This is not desirable for practical applications. We need a STEADY OUTPUT. The AVR helps to maintain steady output by little manipulation in the excitation current of Exciter Stator. Main Stator's output acts as input to AVR, and AVR output is input to Exciter Stator. Working of AVR involves complex electronics. It will be a separate topic. I hope your doubts are cleared !!! If not, ask again !!!!!!!!!!!!!!!!!!!!!
+Rit Wik Amazing explanation, thanks for it. I have two questions. If I dont have a diode, may I disconect F1 and F2 from the AVR in order to not damage it when conect the 12 volts battery to the stator exciting coil for restore the residual magnetism? what do you mean when you say "Check that the speed is 4% of the nominal? Thanks a lot. I hope you make a video about AVRs.
Answer 1: Yes, you can disconnect the AVR and connect battery +ve to F1 and -ve to F2. Hold the connection briefly, 1 sec should be sufficient. Answer 2: If rated rpm is 1500 then a speed range of 1440 - 1560 is fine.
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What a great explanation of this technology. I'm rebuilding a genset at the moment, and while I have a good knowledge of the diesel component, the generation side was puzzling. It now makes a lot more sense. Thanks for taking the time to put this tutorial together.
Best alternator video on RUclips. Thank you so much! There are no other videos which explain the excitor system and AVR.
Engineering (machinery, code, networks and so on) would not be the same without India. It's always a channel with hundreds of thousands of views and few subs that explain the important bits to give students all over the world the "aha!"-moment they need. Shoutout to "manchester encoding in two minutes".
hands down this the most valuable video you find on gensets
Thanks a million! I recently bought a brush-less generator and really needed some background on it's operation. Very informative!
Thank you very much, this is the first video on youtube that really demonstrate how a brushless alternator operates, Thank you again
Glad to know that you like it !!! Thank You...
Wow thorough and clear explanation, even shows how to excite the field
A very informative video. Thank you so much Rit Wik! You even provided how to troubleshoot the generator. Really helpful. Please keep it up!
Very good video or multi-media presentation, this will help other people on their search on how alternator-motor works. Thanks a lot for the upload.
Thank you Rit Wik, I've been looking for a 3D animation of a brushless excitation system. Very well done.
Umeweza
Vidio yang sangat bagus , materi yang dijelaskan sangat nyaman untuk di terima.
Terimakasih banyak.
Terus berkarya.joss!
Many Many Thanks Rit Wik This is the nice video on youtube and amazing which demonstrate how the alternator works..
Thanks Bhimesh.
Well Explained Thru Video & Audio. More power!
Excellent!, Very usefull and illustrative.
Real nice... class...in u tube... first time watched..👌👌👌👌
Nice, keep doing videos like this y are on the right track. Tks from Brazil
really good video am understand fully .. the working of Brushless alternator
Excellent Job explained in simple words
Superb video...very informative
Super nice and very helpful explaination 👍👍
Wow mind blowing graphics and explanation. I wish I found this sooner.
Amazing video and simple explanation.great job.thanks a lot
Excellent Ustad
Very good video and good explain
Good explanation. Very much practical
Excellent video very informative and to the point disscused
Excellent video and very simple explanation.Great work Rit Wik....The doubts about alternator was cleared very easily. Certainly I will suggest your videos to all my technical friends.Thanks .....
Thanks Santhosh.
Rit thx for the video , but how does the regulator supply power to the exciter stator, where does this power come from? I know the regulator senses the output voltage , but is there any type of other input
Htube78 The regulator supply power to the AVR board, and the board adjust the input to the exciter stator
Excellent video guruji
very very good video..ritvik .
Just loved the video Ritwik.....thanks for the good work done.
Thanks a lot Anand.
Your video is extremely good
hi this is really a good video explanation. I learned a lot. thanks. Rit Wik
excellent sir .thumbs up for u
Excellent video. Congratulations
good input to the fresh engineer,
so perfectly explained and shown. thanks!
Yeeah This vidéo is very important please continue to share vidéos likes this
Thanks a lot. This video made me clear .
Excellent video sir
Thanks very much for the amazing video, very important information with really simple way.
but please can you give us some references for further studies about Self-started Self-regulated Synchronous Generator?
and many thanks again for the illustration.
God animation and well explained, bravo
Great explaination
So informative ......Thanks alot
Is the AVR your design or off the shelf.. Good video, well explained
Nice analysis
very good explanation
Nice video. I learned a lot.. thank you so much.
excellent video easily understood thank you RIT WIK
Amazingly well-explained :) thank you so much for this video. Will help me a great deal in my work :)
very much informative. good job
Well explained thank you 👍
good explain sir thanks
Excellent works bro
very nice explanation thank you
great video! thanks from chile!
great Sir... 👍👍👍👍👍
Awesome explanation
Very good for troubleshooting, well doenand thank you.
really amazing explanation
thank u.
Good explanation
Thank you very much brother for explains
perfect demonstration. all clear
Thanks. comments like this keeps me motivated !!!
Thank you for sharing u r knowledge with us
This is a good vid. 👍👍
great video learned a lot..
excellent video
wow nice so amazing
Excellent video.. thanks for sharing..Can you share video on Brushless Excitation vs Static Excitation
Extremely helpful, thanks
Very helpful
Excellent! Thank you a million!
Thank you sir very good you animated and trading kindly Mack Like same Diesel engine and alternate animation with governor controlling system
Hello Sir clearly explained. If two generator are running in parallel , then both alternator KW is same but amps is different then how to make equal the amps
Great video.
Nice bro
simple super bro
Very good video
The recorded audio amplitude of this video is so high that the signal is "clipping". Please reduce the gain for future productions if you don't mind. Thank you.
Bhai ur bahut sare concepts hi usper bhi video banao
Thank you so much for the explaination
Where does the exciter startor get current from ? Directly from battery?
Good video , thanks a lot
Hi Ric
would you then say that the AVR operates as the power source for the exciter? or the exciter is fed by the AC output of the main alternator itself?
there are various designs of BRUSHLESS ALTERNATOR, the example taken here shows that Exciter Stator is having residual magnetism. The AVR gets input from Main Alternator (Main Stator) output (AC) and provides excitation current (DC) to the Exciter Stator.
Hi Rit, thank you! So the AVR is also able to convert AC into DC? many thanks
can you give video which explains the AVR in the excitation system and working
Thank you very much brother
Great video thanks a lot
Sar ac to dc alternator hy problem ye hy ke kam jyada voltage Bahar aa raha aur avr ka fuse ud jara to kya kare coil sab sahi hy
Very useful for troubleshuting Thx pl tell in hindi ya marathi
this is brilliant
So if I can wrap my little head around this, the only reason for not using permanent magnets in the exciter is for output regulation on the main stator? This should be able to be controlled by alternator rpms aswell?
by varying the rpm of engine output from alternator can be changed, but in case of AC output the frequency (hz) will also change, that is why all AC Generators are fixed rpm. DC generators have no such problem, that is why DC generators are variable speed generators.
Thanks for your explanation
May be explain or add video for synchronize 3ph generator tention bolt exciter for Siemens? ?
farshad
Do you know of manufacture of this type, I’m after a hi performance, small, light weight low rpm alternator.
Good video
Wonderfull! It's greate
Sir, if AVR is not working, can we manually control the exciter current through rectifier and potentiometer arrangements??
Please reply sir
a saw this alternator produced by Slovenian car electric factory Iskra,he is so complicated!
Thanks for loading nice video.
Thanks Morris. Happy to know that you liked it...
bookmarked that video coz i'm in the process of buying a self exciting alternator..
and that will be helpful in case my alternator get in troubles.one question tho...
i haven't understood yet does self exciting alternators need external motors to generate electricity or not??
on that video i understand that the internal motor will move the rotor on the alternator side..
have i got it right or wrong?
You got it right, we need prime mover (engine) to rotate the shaft of the Alternator.
is there any transformer between stator phases and AVR inputs needed?
No, transformers are not used in AVR. The AVR houses an electronic circuit board, consists of Diodes, Transistors etc.
Hi Rit, excellent video! I have one query, for the alternator to be self-excited I thought that the process relies on the residual magnetism of the main generator rotor however you mention the residual magnetism of the exciter stator? a clarification would be greatly appreciated! thanks!
Exciter Stator has residual magnetism. When Rotor moves AC is generated in Exciter Rotor, gets converted to DC by Rectifier Assembly and goes to Main Rotor. Moving Main Rotors induced AC current in Main Stator. I hope now you are clear ? Feel free to ask again if in doubt. Thanks Katerina...
Hi Rit, thank you for your reply! my question is: when an alternator is started again, why is the exciter stator residual magnetism used and not the residual magnetism of the main rotor? and where does this induced voltage (from the residual magnetism) go? does it go to the amplifier in the AVR? cheers
Hi Katerina, it is a very good question !!!
Theoretically Main Rotor residual magnetism will generate output in Main Stator terminals. In practical application, the load connected to alternator fluctuates. Examples of load are AC, TV, Bulb, Washing Machine etc which are using the electricity generated by the alternator. If load reduces, alternator output will increase and vise versa. This is not desirable for practical applications. We need a STEADY OUTPUT.
The AVR helps to maintain steady output by little manipulation in the excitation current of Exciter Stator. Main Stator's output acts as input to AVR, and AVR output is input to Exciter Stator. Working of AVR involves complex electronics. It will be a separate topic.
I hope your doubts are cleared !!! If not, ask again !!!!!!!!!!!!!!!!!!!!!
+Rit Wik Amazing explanation, thanks for it.
I have two questions.
If I dont have a diode, may I disconect F1 and F2 from the AVR in order to not damage it when conect the 12 volts battery to the stator exciting coil for restore the residual magnetism?
what do you mean when you say "Check that the speed is 4% of the nominal?
Thanks a lot.
I hope you make a video about AVRs.
Answer 1: Yes, you can disconnect the AVR and connect battery +ve to F1 and -ve to F2. Hold the connection briefly, 1 sec should be sufficient.
Answer 2: If rated rpm is 1500 then a speed range of 1440 - 1560 is fine.