Rotating Magnetic Field & Synchronous Speed

Concept of RMF and Synchronous speed of 3 Phase motor is explained in this video with help of animations. Along with it concept of number of poles of electric motor is also explained.

[zin]

Wow, animation is the best method for teaching stuff like this. It is very hard to visualize this from the text for a beginner. Thanks for the video!

[vrnshrma]

Thank you.
It was quite hard to visualise this by just looking at the pictures in the book.
Keep up the good work.

[aamirmasoodabbasi]

thank you you summed it up in just 2:34 minutes

[sandeshkhatri]

awesome video the engineering behind alternator is just amazing.

[bruno]

Okay, spend some do find this explanation, NEAT!

[noseyknowsme]

Good video explaining rotating magnetic fields, but unfortunately your 3 phase waveforms are spaced 60 degrees apart not 120 degrees.  One of the waveforms is 180 degrees out of phase.

[Chrazzari]

1:41 Finally found "the", it isn't missing

[belgicaYMario]

Thanks! very good explanation, all. Thanks!

[SabinCivil]

Never, it will rotate at a speed slightly less than synchronous speed. The exact rotor speed will also depend upon load on the motor.

[hunginh]

thanks you!
I imagine 4 poles more difficultly than 2 poles.

[angelacabyzhong]

Should the magnet polarity be reversed? I think the upper should be north and the bottom should be south by right hand rule.

[niklaskonberg]

I really like these videos, but the blue wire should be reversed and the red curve should be reversed also, since the currents sum will not be 0.

[brianrios]

Hey people, I have a doubt, in 2:00 it says that if you have more poles, the angular speed will decrease, but then, when you have 10 poles it says "magnetic field will rotate at this much angular velocity", and why? If you have more poles, velocity will decrease

[thanos]

Can you explain why the stator's magnetic field frequency (synchronous freq) become smaller as the number of poles increases? Specifically fs = fe /2p.
fs: synchronous freq
fe: stator's voltages' freq
2p: number of poles per phase

[jacksonshaver]

Nothing gets me going like a synchronous machine

[DWattify]

Hey, I believe the North and South poles in your magnetic field diagrams are incorrectly labelled. They should be flipped

[hashiska.]

i think south and north poles are wrongly marked. correct me if i am wrong

[solaimanhossain]

Why there are 10/12 poles in the induction motor? As we see from the equation. As the number of poles increases the synchronous speed decreases. Isn't it good if the number of poles stays minimum, As we're getting higher synchronous speed from it?

[Integrandel]

Love the content, very good video, but man could there be worse grammar, the amount of "s" s missing hurts

[shashankmore]

In 2 pole winding i can see the net direction of the magnetic field. But in 4 pole winding what will be the direction of the net magnetic field?? I can only see the 4 pole rotate simultaneously but what will be the direction of net magnetic field created by adding the magnetic field of the 4 pole?