Hello sir, I first took a course containing this material as you were creating/posting this series and they were an incredible resource. Two years later I still find myself returning to then to brush up on concepts because your explanations are so clear and concise. Thank you.
Hi Varun, It occurred to me at the end of this video when you pointed out that the E2 = S * E20 would result in the formula for rotor emf = Flux (max) * (S Omega sync) * sin (S * Omega sync * time). So in fact that E20 is the rms value of the E2 when S = 1. It's interesting that the rotor emf frequency slows as S gets smaller, but also that the magnitude of the emf of the rotor decreases. Am I thinking about this correctly? thank you in advance. Larry
hi, i'm really enjoying your videos. i think you're doing a wonderful job at teaching. however i couldn't understand the concept at 11.58 as you wrote once the rotor starts moving the relative velocity decreases. shouldn't it be the other way around?
Here relative velocity is the difference in speed between the stator rotating magnetic field and rotor speed, so when the rotor accelerates the relative velocity I.e the speed difference between the stator magnetic field and rotor will reduce
Electrical Is Easy thank you. I wasn’t able to relate to flux cutting frequency. But now it’s clear. As the rotor starts moving the relative velocity gets reduced and the flux cutting frequency reduces too. More relative speed and more flux cutting yield more induced voltage and a decrease in both means a lower induced voltage. Again a big thanks for your efforts.
Hello because the angle of stator magnetic field and rotor magnetic field is constant we can conclude they rotating as the same speed.but the rotor itself rotate as nm I can't comprehend that Please explain it thanks a lot And good wishes for you
Induction motor airgap has low permeability then reluctance is more compared to transformer that's the reason for low magnetic flux...but u tell airgap has high permeability
