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Thank you I’ve spent two days in tafe and couldn’t understand the charging system lessons This 11 minutes was way more detailed and informative than my tafe teacher thank you so much
Exceptional explanatory. The lessons in your videos are extraordinary and of an absurd level of clarity in all the explanation that is passed to us allowing an understanding so facilitated that it is impossible to see only once. Sorry for my English, because I'm still learning. Congrats on the amazing works. 👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻
Most useful channel I have ever found and these topics can no one explain better than this. Hats off u👏 and thank you for the quality content in all your videos for enlightening our knowledge.
There are 6 diodes in the rectifier, are each of them connected to each stator voltage output? Or, is it only three of the 6 as it's shown in your diagram?
Is the diode trio's only function to convert AC produced by the alternator to DC then send that DC current through the voltage regulator which, sends that current to the brushes & slip rings on the end of the rotor's shaft; to energize the already spinning rotor making it an electromagnet? I'm confused. Why not go through the rectifier?
Excellent video but contains a major discrepancy. 0:44 and 1:32 defines an alternator as a device that converts mech energy to "AC" electrical energy. 9:38 defines it as a device that converts mech energy to "DC" electrical energy. Which is it?
The formal definition of an alternator is "mechanical to electrical energy". But the case exposed in the video is about the alternator of a vehicle, where it must feed the electrical system in DC.
Good morning John, at the begining of the process, an alternator convert mech energy to AC electrical energy, later the AC electrical energy is converted to DC electrical energy thanks to a rectifier and/or Diode trio. So both definitions are right in the case of vehicules. But I prefere the second one because it is more complete.
Alternators are ac generators, while generators are machines those can convert mechanical energy in electrical energy (ac/dc) by the help of electromagnetic energy conversion.
Before 1962, automobiles used a "generator" which produced a dc output with a commutator and brushes, much like what is inside a starter motor. These dc generators did not put out much amperage at low speeds. The "alternator" will produce amperage at lower speeds, alternator meaning "alternating current" but which has to be rectified into "direct current" or dc to charge the battery and power everything as explained above. An alternator requires dc to produce Ac, then rectifies it back into dc. Hope this helps
When the first starting initially needed battery voltage to drive the rotor, but when started, the alternator produced rectified dc voltage to charge the battery voltage. Then the selector switch turns off itself not provide a voltage to the rotor? Please answer
Hi @Babar Ishaque. Thanks for reaching out. You are correct. Our circuit is drawn in a very simplified form. The Start selector switch will engage the battery to kick-start the rotor and then disengages or shuts off as you describe.
6:32 I'm confused here! Some please explain this in very simple terms for me? "Recall that we have 3 AC voltages being produced in the stator windings, why not use all 3 of these voltages? Infact, the diodes are configured in such a way that we rectify and convert both half circles of every stator voltage AC voltage."
Hi there. Thanks for your question. Each winding produces an AC voltage because of its physical structure, so the voltages are out of phase. Each phase is connected to a diode pair that provides rectification. Therefore, we end up rectifying each half cycle of each voltage produced. I hope that answers your question.
Hello @tur, Thanks for reaching out. I'll rephrase to hopefully clear up any misunderstanding. "The battery charge voltage at the rectifier output rises". Does that help?
It's very detailed but I still have question in mind... Does it mean that without battery the alternator cannot produce electricity because there's no voltage to supplied in rotor to create an electromagnet from the start? Or can it still produce electricity? Because there's a generator like (Honda ER2500CX Petrol And Gas Generator) there's no battery in it and just start only pulling the cord Thanks by the way your video is very awesome👌hope you could answer my question
Hi, Thanks for reaching out......Automotive alternators require an initial battery current to create an electromagnet in the rotor. No battery, no electricity, no start. Small portable generators use permanent magnets or other principles to generate electricity without a battery. I hope that helps answer your question.
I have a problem When measuring the voltage on the battery terminals while the engine is running, it gives 14 volts, which means that the generator is working properly??? However, when I disconnect the battery cable, the car stops. What is the reason?
Hi there........ A reading of 14 volts, while the engine is running, is normal and means the alternator is working just fine. I’m not sure why you would disconnect the battery while the car is running, but I wouldn’t worry about the engine quitting. The alternator supplies power to the car, but some vehicles do so via the battery. Best to check with the dealership and ask if your car fits into this category. But, if it was me, I wouldn’t worry about it, and I wouldn’t disconnect the battery while the engine is running.
"The diode trio converts part of the stator output voltages to a DC voltage." What happens to the other part & why is it only converting part of the stator output voltages to DC voltage? Why do we need DC voltage to energize the spinning rotor, making it an electromagnet?
Hello @karimlamari7342 . Thank you for your question. An industrial PC, also known as an IPC, is specially designed for its components in industrial working environments. It is, therefore, particularly robust, based on powerful processors, and can be individually adapted to the respective application. Happy learning from RealPars!
Why do we call alternator as doubly excited machine. Do we give 2 supplies, one ac to stator and dc to rotor as here rotor is producing voltage in stator.
Hello Sssa. An alternator doesn't really have 2 supplies. There is one DC supply to excite the rotor. There is an AC output created by the spinning rotor interacting with the 3 windings of the stator. That AC voltage is rectified and becomes a pulsating DC voltage.
Doubly excited machine means we give 2 types of input. One is mechanical (rotation/kinetic energy) and second is field excitation (dc electrical energy). Same thing can easily be explained in case of synchronous motors (which is just opposite of alternators) there we give AC input to stator and dc input to rotor and in the expense of these two excitation we get mechanical rotation. A singly excited machine is Induction motor. Where we only give one supply that is to the stator (ac supply to create RMF) which alone is enough to produce the rotation of the machine, i.e., mechanical power output.
We obviously give dc to rotor but we don't give AC to stator in case of alternators. Actually we extract ac from stator while giving mechanical rotation to the shaft. What you're saying is exactly the principle of synchronous motor. Both alternator and synchronous motor are doubly excited machines
Can someone in the comment section better help me understand? There are 6 diodes in the rectifier, are each of them connected to each stator voltage output? Or, is it only three of the 6 as it's shown in your diagram?
The stator was configured in Y pattern. So the stator has 3 output. Then we put 2 diodes for each output, hence the 6 diodes. Additional notes. Generator stator's number always a multiple of 3. One end of each coil windings will be tied together, while the other ends untied, and will be used as output. If you really wanna know on how a rectifier works, I suggest to build one by yourself. Try a full bridge rectifier. It's commonly used on an audio amplifier/speaker.
Correction: when the engine isn't running, the battery is the source of electrical power. Once the engine starts, the Alternator is the takes over as the source of electrical power and recharges the battery.
Hi Muhammad, Thanks for your comment! We have recently optimized our learning platform which includes some highly requested features. We are happy to bring you these new improvements which will grant an even better learning experience, as a result we had to decide to no longer support the RealPars App. You can use our webpage to continue watching the video courses. Happy learning!
Does anyone on here have an answer to my question? "The diode trio converts part of the stator output voltages to a DC voltage." What happens to the other part & why is it only converting part of the stator output voltages to DC voltage? Why do we need DC voltage to energize the spinning rotor, making it an electromagnet?
But there is a problem in understanding the electrical power. We give tension from the battery to the coil and then recover it from the second coils. So, where does the excess energy come from, knowing that the physics principle requires maintaining the amount of energy?
Hi there! Thanks for your question. As you say, the battery provides the initial field voltage. Once the engine is running, the alternator belt keeps the rotor spinning thus producing the continuing field voltage. I hope that answers your question.
Hi Taukir, Thanks for your comment! We currently do not have any discount codes, however our annual subscription does naturally enjoy an almost 40% discount. Hope this helps!
Want to learn about industrial automation? Go here: www.realpars.com/individual-pricing
Want to train your team in industrial automation? Go here: www.realpars.com/pricing-team
Thank you I’ve spent two days in tafe and couldn’t understand the charging system lessons
This 11 minutes was way more detailed and informative than my tafe teacher thank you so much
That's amazing to hear! Thank you so much for your support.
Exceptional explanatory.
The lessons in your videos are extraordinary and of an absurd level of clarity in all the explanation that is passed to us allowing an understanding so facilitated that it is impossible to see only once.
Sorry for my English, because I'm still learning.
Congrats on the amazing works.
👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻👏🏻
You're very welcome! That's an amazing compliment! Many thanks for your support
Im learning English too.
Most useful channel I have ever found and these topics can no one explain better than this. Hats off u👏 and thank you for the quality content in all your videos for enlightening our knowledge.
Thanks a million! We're very happy to read that.
Really impressive presentation ! Subject is made very easy to understand for all levels of learners. Great job !
Thank you very much!
Fantastic Realpars, straight to the point but informative.
Thanks, Johan! We're glad you found the content straight to the point and informative. That’s exactly what we aim for!
2 years later and just helped me so much for my school work. Big ups this video.
Glad it helped! Happy learning!
Man how did people design all those rectifier diodes and regulators impressive stuff
That's what I was thinking
This is the best explanation I have seen so far. In fact, this video inspired me to subscribe your channel.
Awesome, thank you!
There are 6 diodes in the rectifier, are each of them connected to each stator voltage output? Or, is it only three of the 6 as it's shown in your diagram?
Is the diode trio's only function to convert AC produced by the alternator to DC then send that DC current through the voltage regulator which, sends that current to the brushes & slip rings on the end of the rotor's shaft; to energize the already spinning rotor making it an electromagnet? I'm confused. Why not go through the rectifier?
How the heck did mankind come up with this stuff?
fr😂
It’s amazing how complex the things we interact with everyday are.
incrementally
We didn't
God
Beautifully explained. Thank you
Glad it was helpful! Thank you for your support
Excellent video but contains a major discrepancy. 0:44 and 1:32 defines an alternator as a device that converts mech energy to "AC" electrical energy. 9:38 defines it as a device that converts mech energy to "DC" electrical energy. Which is it?
The formal definition of an alternator is "mechanical to electrical energy". But the case exposed in the video is about the alternator of a vehicle, where it must feed the electrical system in DC.
Good morning John, at the begining of the process, an alternator convert mech energy to AC electrical energy, later the AC electrical energy is converted to DC electrical energy thanks to a rectifier and/or Diode trio. So both definitions are right in the case of vehicules. But I prefere the second one because it is more complete.
Alternators are ac generators, while generators are machines those can convert mechanical energy in electrical energy (ac/dc) by the help of electromagnetic energy conversion.
Before 1962, automobiles used a "generator" which produced a dc output with a commutator and brushes, much like what is inside a starter motor. These dc generators did not put out much amperage at low speeds. The "alternator" will produce amperage at lower speeds, alternator meaning "alternating current" but which has to be rectified into "direct current" or dc to charge the battery and power everything as explained above. An alternator requires dc to produce Ac, then rectifies it back into dc. Hope this helps
Superb explanation
Thank you 🙂
underrated
When the first starting initially needed battery voltage to drive the rotor, but when started, the alternator produced rectified dc voltage to charge the battery voltage. Then the selector switch turns off itself not provide a voltage to the rotor? Please answer
Hi @Babar Ishaque. Thanks for reaching out. You are correct. Our circuit is drawn in a very simplified form. The Start selector switch will engage the battery to kick-start the rotor and then disengages or shuts off as you describe.
@@realpars Thanks for your kind reply.
How do they get the alternating triangle rotor fingers to be north or south pole?
Hi there! THe rotor fingers are permanent magnets with N and S poles.
Dear Sir, I came here today and impressed with your videos. I pushed the like button in advance before watching full videos.
We are very happy to hear that, Diwas! Thank you for sharing
great explanation!
Glad it was helpful!
Excellent.
Thank you! Cheers!
6:32 I'm confused here! Some please explain this in very simple terms for me?
"Recall that we have 3 AC voltages being produced in the stator windings, why not use all 3 of these voltages? Infact, the diodes are configured in such a way that we rectify and convert both half circles of every stator voltage AC voltage."
Hi there. Thanks for your question. Each winding produces an AC voltage because of its physical structure, so the voltages are out of phase. Each phase is connected to a diode pair that provides rectification. Therefore, we end up rectifying each half cycle of each voltage produced. I hope that answers your question.
@@realpars Thank you.
What does it mean by (the rectifier output battery charge voltage rises) ?
Hello @tur, Thanks for reaching out. I'll rephrase to hopefully clear up any misunderstanding. "The battery charge voltage at the rectifier output rises". Does that help?
Keep making videos on industrial robotics nd Automation
Thanks for your suggestion! :)
Great explanation
Glad you liked it!
This is gold
Happy to hear that!
It's very detailed but I still have question in mind... Does it mean that without battery the alternator cannot produce electricity because there's no voltage to supplied in rotor to create an electromagnet from the start?
Or can it still produce electricity? Because there's a generator like (Honda ER2500CX Petrol And Gas Generator) there's no battery in it and just start only pulling the cord
Thanks by the way your video is very awesome👌hope you could answer my question
Hi, Thanks for reaching out......Automotive alternators require an initial battery current to create an electromagnet in the rotor. No battery, no electricity, no start. Small portable generators use permanent magnets or other principles to generate electricity without a battery. I hope that helps answer your question.
number of rotor poles should be as same as stator poles for generator ?
Hi GameLover. What are you referring to as poles? The stator has 3 windings and the rotor has only one.
The number of magnetic rotor poles in an alternator can vary between vendors. Some rotors can contain as many as 20 poles
very educative thank you regards
Glad you enjoyed it!
So amazing ❤❤
Thank you!
Congrats .Great work.
Thank you, Ricardo!
I have a problem
When measuring the voltage on the battery terminals while the engine is running, it gives 14 volts, which means that the generator is working properly??? However, when I disconnect the battery cable, the car stops. What is the reason?
Hi there........ A reading of 14 volts, while the engine is running, is normal and means the alternator is working just fine.
I’m not sure why you would disconnect the battery while the car is running, but I wouldn’t worry about the engine quitting. The alternator supplies power to the car, but some vehicles do so via the battery. Best to check with the dealership and ask if your car fits into this category. But, if it was me, I wouldn’t worry about it, and I wouldn’t disconnect the battery while the engine is running.
@@realpars
Well, thank you very much 🙏🙏
for your interest and for clarifying the information for me💌👍👍💪💪
Thanks you for this video
You're very welcome! Happy learning
Excellent video thank you
Glad it was helpful!
"The diode trio converts part of the stator output voltages to a DC voltage."
What happens to the other part & why is it only converting part of the stator output voltages to DC voltage? Why do we need DC voltage to energize the spinning rotor, making it an electromagnet?
Thank u a lot 😍😍😍😍
You're very welcome!
Why not use the rectifier to send DC voltage to the rotor field coil, making it an electromagnet, instead of using the diode trio?
Hello @karimlamari7342 . Thank you for your question.
An industrial PC, also known as an IPC, is specially designed for its components in industrial working environments. It is, therefore, particularly robust, based on powerful processors, and can be individually adapted to the respective application.
Happy learning from RealPars!
@@realpars Think this reply was meant for someone else.
3 stator coils at 180 degrees apart eqvh producing equal voltages or currents.
Eavj diode for each phase more like.
Why do we call alternator as doubly excited machine. Do we give 2 supplies, one ac to stator and dc to rotor as here rotor is producing voltage in stator.
Hello Sssa. An alternator doesn't really have 2 supplies. There is one DC supply to excite the rotor. There is an AC output created by the spinning rotor interacting with the 3 windings of the stator. That AC voltage is rectified and becomes a pulsating DC voltage.
Doubly excited machine means we give 2 types of input. One is mechanical (rotation/kinetic energy) and second is field excitation (dc electrical energy). Same thing can easily be explained in case of synchronous motors (which is just opposite of alternators) there we give AC input to stator and dc input to rotor and in the expense of these two excitation we get mechanical rotation.
A singly excited machine is Induction motor. Where we only give one supply that is to the stator (ac supply to create RMF) which alone is enough to produce the rotation of the machine, i.e., mechanical power output.
We obviously give dc to rotor but we don't give AC to stator in case of alternators. Actually we extract ac from stator while giving mechanical rotation to the shaft. What you're saying is exactly the principle of synchronous motor. Both alternator and synchronous motor are doubly excited machines
Awesome 👌
Thank you very much!
Can you give more imformation about the relation between alternator and starter on the video. But thanks alot for the info.
Excellent
Thank you so much!
Can someone in the comment section better help me understand?
There are 6 diodes in the rectifier, are each of them connected to each stator voltage output? Or, is it only three of the 6 as it's shown in your diagram?
The stator was configured in Y pattern. So the stator has 3 output. Then we put 2 diodes for each output, hence the 6 diodes.
Additional notes. Generator stator's number always a multiple of 3. One end of each coil windings will be tied together, while the other ends untied, and will be used as output.
If you really wanna know on how a rectifier works, I suggest to build one by yourself. Try a full bridge rectifier. It's commonly used on an audio amplifier/speaker.
Thanks a lot !
You are welcome!
thank you
You're welcome!
Correction: when the engine isn't running, the battery is the source of electrical power. Once the engine starts, the Alternator is the takes over as the source of electrical power and recharges the battery.
Nice one
Nice video as always. Can you tell us please what software used in it?
Hi Nabil,
Thanks a lot for your kind comment!
I am actually not sure about this, our animations are created by our Graphic and Animation department.
Do you have your app on play store. If not then please develop if yes then it is not appearing to in play store does it has any problem
Hi Muhammad,
Thanks for your comment!
We have recently optimized our learning platform which includes some highly requested features. We are happy to bring you these new improvements which will grant an even better learning experience, as a result we had to decide to no longer support the RealPars App. You can use our webpage to continue watching the video courses.
Happy learning!
Nice video,
Thanks a lot!
Amazing
Thank you!
Does anyone on here have an answer to my question?
"The diode trio converts part of the stator output voltages to a DC voltage."
What happens to the other part & why is it only converting part of the stator output voltages to DC voltage? Why do we need DC voltage to energize the spinning rotor, making it an electromagnet?
Thanks
You're very welcome, Boova!
very nice
Thank you!
But there is a problem in understanding the electrical power. We give tension from the battery to the coil and then recover it from the second coils. So, where does the excess energy come from, knowing that the physics principle requires maintaining the amount of energy?
Hi there! Thanks for your question. As you say, the battery provides the initial field voltage. Once the engine is running, the alternator belt keeps the rotor spinning thus producing the continuing field voltage. I hope that answers your question.
thanks
You're welcome!
perfect
Thank you!
10Q is a very good experience share for us
🔥🔥🔥
Make video on RTU
Hi there,
We have the following video on RTU on our channel th-cam.com/video/Ax1jTp2dl9M/w-d-xo.html
Feel free to check that out.
Happy learning!
👏👏👏
This is a pretty fancy schmancy channel ya got here.
Thank you! :)
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Give me a coupon code, through which i can enroll your plc training program
Hi Taukir,
Thanks for your comment!
We currently do not have any discount codes, however our annual subscription does naturally enjoy an almost 40% discount.
Hope this helps!
Superb explanation
Thank you 🙂