How do Universal Motors work ?
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- čas přidán 10. 07. 2024
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The working principle of Universal motors is explained in this video with the help of animation. They are capable to run under both the A.C and D.C power sources.
Very Educational. ...thanks alot guys. ...very much appreciated!
Super explanation and demonstration, very well done!
I'm applying for an engineering job where we use (some kind of) motor to turn conveyor belts. I wanted to be able to explain fundamentally how the different types of motors work. Thank you.
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Read vk mehta principles of Electrical machines
from Colombia , thanks very nice video
The complex explained simple. Excelent video!!
Very much Helpful sir...
Thanks for such amazing animated video series...
根据印象又找到了这个视频，不错
Very educational thanck u ...
We need more videos on ece group subjects sir thanks a lot..
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Superb video, best channel ever
hi, I need a help to understand how work this motor. When you used the left rule hand, do you indicate the real direction of current? Tks for your help :)
Very good
Outstanding video..
I learned a lot of things from your videos...
And a lot of confusions cleared of my...
Bundles of thanks...
Please make a video (How does commutater work..
Thank you...
Excellent information.
👍Really GREAT video 👌
Your explanation marvelous so upload more videos for electronics and communication engineering
very simple basic theory excellent
Excellent. Thank You
You guys have done a great job.
One advantage of these motors is that they can spin at extremely high speeds, tens of thousands of rpm for some types. AC induction motor speeds are determined by the number of poles and power line frequency. Two and four pole induction motors spin at 3450 and 1725 rpm respectively for 60 Hz power. A vacuum cleaner motor may spin at 10,000 rpm, thus allowing a small fan to produce powerful suction. A wood router may spin at 25,000 rpm.
Universal motors still have 4 disadvantages, loud sound, sparking, wearing carbon brushes, and not going over 10,000rpm, thus induction motors can still pass over 10,000rpm, but the most newest motors are inverter motors, which are stronger than universal motors, induction motors consume less electricity, and universal motors consume slightly less electricity, universal motors still have disadvantages, even if they can run on AC or DC, but the most nicest advantage about induction motors is they can last longer than universal motors, inverter motors can over 3450rpm.
You can power universal motor with VFD, as long as you get the right voltage, the motor will function properly, however inverter motor will function more effectively than universal motor.
voltage controls rpm
Awesome video
I think the positon of the electric brush should be delicately designed, or else there would exist some time during the rotation that the torque is dragging the rotor.
thank you
Useful resource for students
Well done
Thank you!!!
Can you one more video on universal motor explaining more about it...how do we control it's speed...it's no load operation
This motor is very much used in commercial appliances...so it would be of great help
does the frequency of rotation of rotor in universal motor running on a current depends on frequency of AC current supplied?
thankyou so much sir
can you please tell me the software you are using?
i want to ask one thing only, which software you use for the simulation.
blender
Get rect
Good one
very thanks
Thanks a lot but where we should connect the power supply
must connect in series? what would change if connected in parallel?
pls make video for working of repulsion motor
Ingenius!
How do axial flux motors work though?
Thank you
Whether it remains as universal when connected in parallel?
So how do we reverse the rotation? Re wind the coils in the opposite direction?
***** Ahh yes that makes sense as it would then magnetise the spinning rotor in the opposite polarity while the static coil remains the same.
Thanks borther.
Nice video, thanks. it would be helpful to see the circuit diagram of the universal motor - like you showed the circuit diagrams of serial and shunt motors in video "DC Motor - how it works".
Thanks in advance.
I tried using the transvestite over the forward converter but it burnt the 3GPP transistors. Does anybody know where I can find a jar of pickles for my pulse code Modulator?
thx!
Thanks
Core layers are used in universal motors, especially induction motors, because they create Eddy current.
Should be the right hand rule. That hand works for everything.
+Libfall Could you explain that rule, please.
+WhtStr213 When taking a cross product you should always use the right hand rule. Google it. They show a left hand which is wrong.
+Libfall use right hand rule for generator action. left hand rule for motor action
Left handed people can't do anything right.
yes,it is true
Thanks.. Boss
Might this have anything to do with why my vacuum cleaner motor has loads of sparks coming out, with a burning smell?
And will replacing the brushes help?
+accursedCursive Possibly. Make sure the brushes have good contact, and are clean and clear of debris. Also inspect them for arc damage/corrosion. BTW, that smell is Ozone (O3), most likely.
Please insert arabic translation in your videos and thanks for your magnificent effort in the video 💗
@FelinoFacho un chileno hablando bien??
Great tutorial!
I have a universal motor rotary tool running on power cord AC.
How can i rewire it to run on DC?
Pretty much wire it directly up to dc, should do the trick
Bridge rectifier, ac in dc out .
WHICH SOFTWARE DO U USE TO MAKE THESE SUCH A GOOD ANIMATION ??
CAN U PLZZ GIVE ME THE NAME OF THAT SOFTWARE OR ANY LINK
blender
AC 220 Drill machine will work on DC 12 volt high amp?
no
THX
What is going on if you want to change the diraction of the turning?
In a dc motor you just change positions on polars,here if you change positions on polars do you take the same effect?
You have to move the brushes to reverse the motor but keep the stator wires withe the same brush (ex. To reverse, switch which stator wire is connected to which brush
Can anyone tell me how to know the dc input rate of a motor working with 220v ac ?
what happens when i connect a shunt motor into ac power source
Nice
Hi end of the year here,
glad to see video, this what im looking for becasue im about to buy a highpressure washer and there is a machine which operates with universal motor
so universal motor still use a carbon brush right,..?
Great video, very explanative, though I'm wondering why you chose the Left-Hand rule? Traditionally the Right-Hand rule is used, and although they're equivalent (as long as you swap the current/magnetism fingers), it's kind of confusing. I paused the video for several minutes wondering how come my RHR wasn't matching your diagram, till I realized what was going on.
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I have this kind of motor at my hand and I wanna make a small wind turbine do you think I can use this kind of motor, perhaps convert this to a dc motor first and then use it, any thoughts?
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Great
Thanks.....
universal motor works a.c. & D.C. supply
👍👌
Engineer : bro you want AC or DC ?
Universal motor : 𝐲𝐞𝐬
Good Work Learn Engineering Team. Can you please make a video on "Why DC shunt motor cannot be used as Universal motor"?
What is high wattage in universal motor?
How does it occurs?
How to rectify high wattage in universal motor?
How many Volt DC supplies can we supply to this motor?
With AC how do you know which way it will turn?
Universal motors are pretty inefficient. But it's good to know how they work. Thanks!
If with CA it rotates to the same sense how they make a motor to turn to the other sense?
so, while operating in dc, if i swap the polarity at the brushes the rotor will rotate in the opposite direction but what about while in ac? does it work the same way?
+Petri Ševardnadze You can run the motor but you cannot change its direction...instead you connect a diode across AC windings to make it work like DC and hence control the direction of the motor
Brazilian research shows a result impossible to happen due to the law of physics in electric power electricity.
It absorbs 35 watts of power and powers the power to 140 watts, consuming only 35 watts of power.
czcams.com/video/aEyXmsn9Mlo/video.html
The hope of the world is in our research, who has energy has the power.
@@potencializadordeenergiagr7551 Like you said, this is Impossible.
Sir please made video Once Again on it
thanks from bihar india
So, you can't control direction for universal motor?
I am the one to thank
So, universal motor cannot run in opposite rotational direction?
yes, it can. you need to invert the army
They can, you just have to flip the wires when connecting the positive and negative wire into power source.
Nice video, but the pauses kept freaking me out
"Brush should be of higher resistance " what resistance - abrasion resistance or electrical resistance ?
I have a question , if anyone reply I am glad. If I change the direction of power supply cable , can I change the direction of rotation as well.
No, both rotor and stator field directions change, resulting in same rotation.
Is it dc series or ac series motor
what is the efficency of this type of motor? its same or ecual to nromal AC or normal DC motor?
SLEVIN SHAFEL it depends on how big the machine is. For little house gadgets like a vacuum its about 50%
Why is commutators perpendicular to the magnetic field? Shouldn't it be otherwise?
When we give ac supply to dc motor the motor will burn due to absence of reactance value..in universal motor how we use same winding for both ac and dc supply.
It’s in ac or dc type?
why there is no diffrence in rpm when we increase ac input frequency from 50hz to 60 hz???
basically universal motor are kinda dc motor with laminated stator
universal motor has very high torque
The direction the current takes at the start of this is incorrect?? I thought it has to take an opposite direction on the stator when comparing both sides to create two opposite poles?, in this video the current runs through the stator coil in the same direction on both sides??
3:00
@Learn Engineering what kind of motor is used in home wall or ceiling fan? is it dc or ac?
Koperal Jali what kind is your power out of the socket? AC I guess, so...
Sir explain repulsion motor
nice video how i can mesure the speed of a motor? there a mathemticla fomula
O don't think so, speed depends on voltagem and load.
@@charleslyell3748 i have a motor that controlled by a igbt if you have e mail to sent you a image thank
@@georgeveropoulos2489 charleslyellsenior@gmail.com. Thanks.
So shunt configuration cannot be universal?
Is there back EMF with universal motor , I want regenerative braking on heavy electric assist velomobile , permanent magnet dc or electro magnet for simple low power dc generator suitable for low dc battery charging...thanks for your time
there will always be a back emf whenever you have any type of changing magnetic field, or if you have a fixed field with conductors passing through it, both of which are cases in this universal motor. If there was no EMF 100% efficiency would be possible in the electrical domain outside of very small coil losses
Jake thanks ....but I do have a question ....can I universal motor be used for dc generation similar to permanent magnet motor ( no special circuit just diode)
if you mean to produce a DC rectified power source through diodes, then if the you move the rotor independently then you should see a voltage through the terminals (AC) off the same fundamentals of the back EMF (induced voltage). the only issue would be polarity but that should be a simple investigation
Jake Hi again....so universal motors and pm ( permanent magnet) are both capable generators but the pm motor only needs one blocking diode ( otherwise motor would run ) whereas universal motor needs output rectified if needing dc < is this correct ....thanks again for your time
Could you please do a video on how the motor that turn the blades of the quardcopters work. I have a theory for a new quardcopter motor but I before I say it I want to see if that motor would work.
How did that work out for you?
the universal motor speed is very high and most powerful than other motor.
Can universal motor have permanent magnet as stator or is it only with wound stator?
EMF- Electron Magnetic Flied
no, EMF = Electromotive force
@@johnkiller86 both are technically correct, but in this case you're right it would be electromotive force or "counter-voltage."
What is EMF
Electromagnetic Force
@@alperenyldrm2621 EMF can stand for either "electromagnetic field" or "electromotive force." In this case, since he was talking about the counter-voltage generated by the motor, it would be electromotive force.
Why is using electromagnet better than permanent magnet?