How does an Induction Motor work how it works 3 phase motor ac motor

In this video we take a look at the induction motor to understand how and why it works. We include animations and real world examples to help you learn the basics of induction motor working principles.

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[nidhinbenny]

Hi, very nice video! Since you guys are talking about induction motors specifically, I would also mention that the rotor spins at a slower speed than the stator magnetic field (for an induction motor). The difference between the stator field's speed and the rotor's speed is called the slip speed and is a central object in induction motor control. The animation shows the rotor and stator spinning at the same speed, which is how it works in synchronous motors (synchronous => same => same speed).

Also, the induction motor effectively works something like a transformer (with the stator being the primary and the rotor's bars kind of like a secondary). At least at an undergraduate level, we are taught to model induction motors in a very similar way to the circuit model for transformers.

But, I understand this wasn't supposed to be a very technical overview. For anyone who would like more in-depth information, I suggest the book "Electrical Machines, Drives and Power Systems" by Theodore Wildi. :)

[AR-iutf]

Very clear explanation the crux of the induction motor working - much better than some of the higher quality video productions here. In fact most of them
miss to explain the key reason why the rotor actually rotates in contrast to your clear explanation. Thank you !

[bushracanaan]

Thank you guys very much I spent 5 years in the school of engineering never getting a clear vision on this particular concept

[Derek.Colton]

Great videos, Im retired from electrical field. Power Generation, Electrician, Lineman, Instructor... attended many classes rarely seen electrical basics presented completely accuratly, yes trouble shooting the instructor was my way of countering the boredom at times. You've done an exceptional series here, the subject materiel and supporting visuals are a great balance of keeping it short, simple yet very informative. i look forward to thd more advanced topics you hinted at. Heading over to get that cup of coffee you well deserved!

Quick questio, where can I find a generator other than mechanically driven AC? Just kidding around. Thanks Paul
DAColton

[nwachukwuprecious]

I'm actually a 14-year old with an interest in electrical engineering and I want to say I really enjoyed the video. Thank you very much.

[salahdehina]

i can't thank you well enough! i was loosing sleep because of this but now that i understand i can finally move on

[crashtest]

It's funny how the introduction of this video is also the sound of an induction motor starting up. 😁

[birukkifle]

simple but powerful. it is a spoon feed video. Thanks a lot!

[joshuaennis]

Thank you sir because of you i might just get a plant engineering apprenticeship at my job

[jdeere]

One important missing part is an explanation of how the magnetic field is induced into the rotor. It is not a permanent magnet, as might be inferred from the animation., but rather is an electromagnet created by the current induced into the squirrel cage bars. How that occurs is not at all obvious, except to Nikola Tesla, who invented it. I, and most of us I think, need to have it explained.

[tomheath]

This vid is so much quieter than the rest in the series (just letting you know ;))

[alak]

thank you for these videos we are looking for more please keep it up

[khumaranasibli]

The clearest explanations i have ever seen 😊 Thank you much 😊 i cant believe there would be such an amazing explanation 🤗🤗🤗

[santanacasas]

Thanks a lot friend you are a top-notch teacher

[rereaofoliki]

Thanks alot for your video here
I found it really hard to understand the squirrel cage but
You explained it well and clear more than our lecturers here.
First time to watch your video
Thanks

[fifthavenue]

Only 218 comments? I can't believe it!!! You have no idea HOW much I have wanted to understand how a motor worked!!! THANK-YOU!!!!

[johnkeepin]

Well presented; in particular, the graphics showing how it works is clear.

A bit further on, one could add that 3 phase motors are now often used under variable frequency, to control the speed - loads of them in use as ‘traction motors’ now, both on the roads and the railways. Traction motors are often also used as alternators for regenerative braking, so one could mention that they can be controlled that way round by varying the electrical load, either by charging batteries or feeding back into the supply grid.

To some extent, this became possible due to the advent of high power electronics for dc/ac inverters (IGBT), but that’s another subject!

[DevanshuKamble-uzfi]

perfect logical and conceptual explaination of topic it destroyed all confusion from my mind and made a perfect clear picture with animation

[im_cpk]

Best Animation !! You showed... Thanks a lot 😀

[dhokiadharmesh]

Dude, you make nice animations, keep it up. they solve my problems