Does this old Induction Motor still work? || How do Asynchronous Motors work? EB#46
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- čas přidán 8. 08. 2020
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Useful websites about Asynchronous Motors:
www.jinsa.com.mx/FichaTecnica...
www.hs-weingarten.de/c/docume...
home.teleos-web.de/vsteinkamp/...
www.servotechnik.de/fachwissen...
www.js-technik.de/en
In this video we will be having a closer look at an old induction motor or asynchronous motor that I got lying around. In order to see whether it still works, I will show you exactly how to power such a motor and how it creates its rotational movement. Along the way you will also learn why such motor types are still the most widely used ones in the world and I will also partly compare them to DC, BLDC and stepper motors. Let's get started!
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Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod
(incompetech.com) - Věda a technologie
i love how you say ''squirrel cage''
Old Top Gear always said that the easiest way to identify a suspected German spy is to ask them to pronounce "squirrel"
Squibble
Sqvirrel
It is scribble cage 😡😂😂😂
Ohhhhhh I actually heard it as "scribble cage". Not that "squirrel cage" automatically makes more sense to me.
"Professionals" don't solder crimp contacts. That's a big no-no, especially on stuff that vibrates.
Haha you got me there.
Yeah I was about to say that good catch
Well. We're technically paying him for his work so technically he is a "technical professional". 😄
Also even pros make mistakes.
Why is that bad
@@Willeexd1337 Solder wicks into the multi-strand cable, restricting movement between the strands and promoting breakage when physically moved around. Basically it turns the section near the crimp into a solid-core cable.
6:09 you should absolutely never power the motor up while the shaft key is still in it no matter how secure it is!
Those things fly out you don't even see it and it can hurt you badly.
Stay safe.
Not sure what you mean. Sorry.
maybe it is fixed in this motor, but i doupt it
@@greatscottlab on the shaft of the motor there's a slot with a long square piece of metal in it called a shaft key.
This key is used to transmit the torque from the motor to whatever is connected to it.
The problem is that the key is only pressed into the slot, so powering up the motor like that could cause the key to go flying and hurt someone.
@@TDG2654 it can literally fly like a bullet specially on 2 pole motors
@@greatscottlab Um zu übersetzen: Den Wellenkeil solle man entfernen bevor man einen Motor startet unabhängig davon wie fest er sitzt, daher selbiger rausfliegen könnte. Was natürlich ins auge gehen kann.
Hi Scott, many thanks for the very informative description of how asynchronous motors work, the way you describe the workings, even an old bloke (78) can understand, I have been dabbling with electronics for most of my life and never really understood how such motors worked.
Many thanks young man, regards from Ray in North Wales
Love your videos and the way you explain things...
You are a source of inspiration to me and majority of young electronic lovers....
Thanks love you bro
One big advantage with these motors is the fact that you can use a frequency converter, and thus adjust the speed of the motor without losing too much torque.
There is a lot of good frequency converters out there that are not all that expencive.
There is a lot of cool stuff you can do with the frequency converters.
I have used this sort of setup quite a few times in packing robots, ship systems etc. The motors are cheap and reliable and you can use a 3x220 motor with frequency generator that uses 1x230 supply. Very handy sometimes
As always great video !
Honestly most of this just goes over my head, but i enjoyed it regardless.
Stay creative :)
3-phase motors are quite simple in reality,.
There are three things that can kill them through normal use, overload, water in the coils or worn out bearings.
Hello GreatScott, i’m from France, and i just wanted to say your channel is the best to watch cool videos about electronics and learn a lot of things.
Thank your for the time you r spending on every video, continue in this way it’s really good.
Bye !
Excellent explanation on how an asynchronous motor works. Particularly the "star" vs. "delta" wiring explanation. Thank You!
"I want to see if this motor works"
"Ah I cannot look into it"
**orders a new motor**
"Now I understand..."
stonks
@HarleyHilderson lmao
@HarleyHilderson I completely understand this. When I need something from my workshop, it usually takes several hours or from time to time days before I find it. So, instead of looking where to find it, I quickly order it online. Usually I get it faster delivered than that I'm able to find it. So I have most of my stuff double/triple, which makes retrieving the next time easier....
@HarleyHilderson
I've found that 2 women will be compatible as long as you've disconnected one before you connect the other. For some reason this allows them to communicate correctly, and no magic smoke is emitted.
MAKER manifesto: If you can't open it, you don't own it ;-)
knowledge has a price.
Awesome video and also very well explained !! Great job from Great Scott !
Really love your vids. Keep up the good work. Cant wait for the next greenhouse video
Same
Coming soon!
GreatScott! Have you tried adding some artificial UV light for the plants so that if there are days that rains a lot you can still at least keep the plants alive?
Just a little safety tip. When there's need to test a motor that isn't connected to anything, always put some tape around the mechanical tab. Because due to the centrifugal force it could fly away and hit something or someone. Usually when you open an asynchronous from the box, it should have a plastic protection for the tab.
Finally understand how these motors work! Thanks
Btw love your videos!!!
Thank you!
I was waiting for induction motors for eternity thank you
This brings back many memories of working as an electrical engineer in a power station. We worked on all sizes of induction motor from 415v to 11kv. We did routine maintenance and fault finding on both motors and associated switchgear. I could almost strip and rebuild one of these blindfolded!
11kv motors?? damn, that is sick
I learned about AC motor at University. I have a lots of them. (300 W to 2kw motors ). Great video!
watched all 46 videos back to back within one day and I feels like I need human surge protector. So much current flowing through my mind
Excellent video, as usual!!! If I can suggest, it would be terrific if you can make a part2 video about speed controlling of these motors.
I was in search of such vidoe explaining the motor in detail
Thanks for this
This video has helped me!
Now I know whether to connect in the star connection or delta. I have some 400/690 v motors at my farm
I finally learned why that cap exists. Thank you!!
I wish I saw this 2 months ago when I got my compressor working. Very awesome video. Thank you
"There's a lot more to learn"
Oh boy if they knew...
Engineering can make any brilliant mind even more brilliant, but at the cost of sanity
@@Kalvinjj Relatable
Welcome in the world of Electrotechnics/Engineering...
Dope video Greatscott alot of good knowledge related to motors Thanks !
This is a excellent video. Congratulations! More towards what this channel was in the past. Maybe a bit less interesting to some but for me perfect.
DIY or Buy: VFD (or motor drive)
And yes safety will be a problem
Up
Awesome video sir!! Like always
Great stuff, love your videos!
Great work. You did a great job explaining this. We use a lot of 3 phase 480 Volt motors where I work as well as several 4160 volt motors. The stator is large enough to stand inside on the 4160 volt compressor motors we have. It’s a lot of fun to work on them.
i would like to know as well
maxhouseman The United States. The most common motor voltages here are 120/240/480 but in some industrial settings we use 4160 volts. We typically use a VFD to start motors this big in order to ramp them up, then we switch them over to line voltage once the VFD and line voltage are synchronized.
maxhouseman that’s really cool. I’m an electrician and instrumentation technician here in the states. We bring roughly 15 KVA in to our facility’s switch gear then distribute 4160 and 480 volts out of them. We use transformers to get our lower 120/208 voltage for things like lights and basic power panels. We also use a lot of 24 VDC instrumentation (flow meters, temperature transmitters, level transmitters, and control valves). There’s never a dull moment with this much stuff.
BTW our facility manufacturers ammonia nitrate so as if the multitude of different equipment doesn’t make it exciting enough, we’re producing hundreds of tons of Ammonia Nitrate solution too. It’s a very cool process but can definitely be super dangerous.
"Never work with 230/400 V if you are not a professional." Me playing with 3 microwave transformers: 😅
Lol
Be careful or 😳😬🤪😵😷🤕
Glad you are still alive
Thats a stupid statement -wear rubber gloves and nothing can happen to you .Worst case scenario breaker switch goes off.
@@zumbazumba1 Yeah No chance of electric fires. 😐😒
Creating an a flow control system would be amazing for home appliances. I could not find something similar. I am looking forward for working on such a system ...as soon as I can get a pump that I can play with.
I really wish this channel can provide introduction and use of some exotic types of motor such as linear servo,voice coil and laser galvo
Nice video. Now to work a great big stinkin' asynchronous motor into my next project. I've got a 1/4 horse, single phase motor in the garage, that's been waiting for a home. ;)
I had a super old one that has been sitting outside in 4 season weather for years that still works just fine to pump water. I ended up having to use it when our main house pump was not working and I didn't know how to fix it at the time. I ended up doing a small series called of videos about my struggles that summer lol, was tiring and I don't miss it.
23 years ago, I've learned this at the University. Good memories for a very old man.
Haha took be back to school 17 years ago, love it 👍👍👍
For a second I thought I clicked at one of The Post Apocalyptic Inventor's videos after seeing the thumbnail. :D
Great video, the explanation is very correct
Thank you for sharing And explaining it so well Thank you
I have learned a lot from u
Keep growing and Making awesome videos
Thank you again 💓💓
Gteat video and as always, right on time for my projects!!
finally some real industrial engineering coming on to the channel, waiting for the introduction of Programmable Logic Controller on Great Scott
Excellent descriptions! I learned some things and really enjoyed this video. Thanks Scott!
U r comment is one week ago? How?
@@BalintNandori Early video release for Patreons.
I love your hand writing sir
Very useful video. I love this. Thank you very much.
good explanation for someone who already knows a thing or two about motors, but not for beginners. without understanding inductivity and lenz's law any explanation of induction motor still won't make sense.. but good video, thumbs up
Where I work, a lot of our equipment is belt driven, so we select the output RPM by selecting the ratio between sheaves (pulleys).
This very useful and great work
Love form india
Ich hab das alles in der Ausbildung gelernt und hab sogar selber Motoren gewickelt. Sehr interessantes Thema.
Yay next super awesome video! Btw im from Czech Republic :D
Please make a full video about distortion power factor. PLEEEEEAAAAASE
Excellent video 👍😄
good video sir Scott
I did learn a lot as, thanks
I always dream about an 24v ESC driving this kind of motor in huge R/C projects, like you said it's cheap and reliable.I dismantled recently a Junheinrich electric transpalette and they use a special ESC capable to transform 24VDC in a 3 phase 14volts with the same kind of asynchronous motor but with 3 14V winding.
Hello 🖐️I love your Stabilo Art 😍
Thank you so much 😀
Thank you for the link Mr
Bro thnx for revising my electrical engineering basics
For the next topic it might be interesting to discuss about soft starter
Great video!
Pretty interesting! 😃
I need to get a motor like that! 😬
Stay safe there! 🖖😊
Its worth to sleeping late and waiting your video to be uploaded:>
Hope you enjoyed it!
Love your videos man! Could you plz do a DFIG please! There is very few videos online and don’t explain very well.
Hi Scot,
The video is excellent. Kindly make an video on speed control 3 phase induction motor using arduino and mosfet switching.
I never thought of describing the single phase induction motor as an ellipse, but it does make sense.
The magnetic field is stronger on the main winding. and the field is slightly weaker on the auxiliary(capacitor) winding.
Your video is very interested and informative
Glad you think so!
Most machines at my work use these motors so very familiar with them. Very reliable and also very quiet operation. In a not so quiet environment though as what we do: grinding and sawing metal is by itself a very loud buisness. Everything we do is not deafening loud though so that most of our machines by themelf like the drill press are not very loud is a good thing and also . these things last forever. The drill press is from around the 60s i think and stll runs as new. Thats reliability!
Thanks for the info!
A follow-up on motor starters/soft starters would be great.
Thanks for this video. It is very educational, but i dun really understand all that is presented here.
What's crazy is I have the exact same brand of that motor. I purchased it and assumed it was for 60hz, (I live in a 60hz country) but when it arrived I found out it was for 50hz. It's still really useful to learn from it.
sometimes they're rated for both, it'll just spin 20% faster on 60 hz
90% it will work just fine, maybe RPM will be a little bit different. That's the benefit of Async motors.
You should do a video on VFDs and the magic that they can do w/ such a motor.
it would be interesting to see projects with induction motors :$
when i was 14 i knew how they worked and i am 16 now but still i enjoyed clarifying more stuff get to know more i liked it yeah nice job your fan from 2014
Useful for EEE
Thank you
I've used lots of those motors on Wirth et Gruffat rotary machines.
This takes me back to electrician class, where we had to do asynchronous motor theory for a whole day. It was pretty exciting, and very useful during my apprenticeship at a factory.
How would you feel about doing a video, on how to utilise a washing machine motor, similar to this video?
I have one at home, and I can't figure out what to use it for, other than some kind of generator, like a solar panel, but I am completely lost in how to hook it up.
Nice video man!! Could you make a video about soft starters and delta/star starters? Thank you!
Excellent video as usual, could you do one about soft starters and stop methods for a single phase induction motor ? i have noticed that a "soft stop" feature it's not easy to find on comercial soft starters for 1HP motors and i wanted to use one in my pump so it stops banging the pipes when it turns off.
Actually learned something!
Induction motors are cool. I was expecting to see what conditions are suitable for the DELTA/STAR configurations.
Nice video, thanks.
Delta is for 230 and star is for 400, delta uses less current. This is why star-delta exists, biger motors have a too big current for the net so you start the motor in delta (current=less, speed and power=less) and then you switch it (automaticly) over to star for better speed and power
Nice videos pls make videos on small induction motors like the ones in a microwave
Would love to see a video explaining how to make a variable frequency controller for these motors :D
Up
The star configuration is also known as wye due to it looking like the letter Y.
It's also found in the flux capacitor.
Y don't they just call it Y
At University we called Y-star and "delta" - triangle
Great video
How does an induction motor Start?
"Broom brom broooomm"
Those who've seen the movie will understand 😂
just don't pee on my porch next time and i'll show you how a motor works
Damn it. Beat me to it.
up down up down up down
Electro boom
Ye college nahi factory hai
I wish the US had a standard 3 phase supply. We get a single phase for residential and most commercial. My work somehow pulled off a three phase connection and we saved a huge amount on our heating and AC by switching to a true 3 phase blower.
Awesome as always
Thank you! Cheers!
Thanks!
mmm...
Can u make a high voltage dc supply
I want to make a sgtc
Hi! Love your videos!!
Glad you like them!
@@greatscottlab awesome! Thanks for replying
Thanks for bringing this subject to your video, actually I was working with ac synchronous motor since 15 years and variable frequency drive. but I want to make own variable frequency drive, if you can help us please make a video, how to make variable frequency drive for motor, using Mosfet or igbt
Fascinating! Perhaps you could also build a three phase inverter to drive them as well? That way you could also vary the frequency more easily too? I think this is how electric cars do it currently
That would be great!
How tf is your comment 1 week ago
Ajay Kalsi CZcams is drunk again !
We have a 7.5kW motor to run our hay blower...that is a beast. We use a tractor to move it as its close to 100kg.
Great video. Next question is how can I control the speed of one of those?
GS, you are such a brilliant EE. For a lot of your EB videos, did you have to do research beforehand before explaining the concept, or are you just that good?
I always do research when producing my videos👍
Your videos are really good. Can you make a video on the Arduino Portenta H7
I was just having "the talk" with my son - about motors of course.
AC Induction motors are the power workhorse of the house - pumps, fans, compressor (AC and refrigerator), Washing Machine, Dryer - because they are cheap power; but, only when you can use them for single speed on/off power. The electronics required to control their speed usually costs more than the motor.
For small motors, ones that run on batteries, an/or ones you need to change the speed of, brushed DC motors are still the king.
The new kid on the block in the house are brushless DC and AC synchronous motors (which are actually the same thing) as the the electronics to drive these are getting cheaper all the time and with all the advances in Rare Earth Magnets, these motors can pack a LOT of power in a very small space.
"only when you can use them for single speed on/off power." And not even a constant speed. your application need to account for the fact that slip varies by load.
@@johnmiller8884 I agree, the speed of induction motors is load dependent; but, that is even more the case for DC motors. The only easy constant speed motor is a synchronous AC and that is rarely/never use in US homes due the the lack of three phase power. That is changing now some as the cost of electronic motor control has really dropped (Ex: drones) and they are finding their way into places like cordless drills, etc. The one challenge to overcome is that Induction motors are just so cheap - less that 1/4 the price for the same power and the only control components they need is a capacitor and maybe a time/centrifugal switch.
How old is he?
@@arthurmead5341 He is 20 - Rising Junior ME in College and on a top Formula SAE team that is moving to E-Car.
hey GreatScott how to make over discharge protection
Hey Scotty, I didn't see any squirrel in the cage. LOL🤣
Great video! I learned from it.
Can you make a video about powering bldc motors from the grid with 12 or 6v transformers?
That you can't really do. You would need 3 of those, each wired to a separate phase of the mains (so no luck if you don't have 3 phase supply). And even then it is very unlikely that you would get the motor to spin because BLDC motors are not designed to be powered like this.
@@JanCiger last year I tried (with 3 12v transformers) and it worked. It was suprising for me.
Hey scott can you do a diy wint mill and the rotating thing can produce power
I am a fan of the Shaded-pole motor,