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What he's trying to say is, if you energize a transformer at the very same point of the sinewave from where it was denergized, you'll have minimum inrush. However, if it's energized at 180 degrees away on the sinewave, that will cause a maximum inrush.
Real circuit breakers can be calibrated to trip when they see certain amounts of current over a period of time. Therefore, they are calibrated to not trip if they see the inrush current for a few milliseconds. However, they will trip if they see that current for longer than that.
here one fourth cycle reprensents phase difference of 90 as 1 cycle=360 degree so 1/4=360degrees/4= 90 degrees, and here flux and voltage wave has a phase difference of 90 degrees
Thank you for watching!
You can read our full article on Transformer Inrush Current at: www.electrical4u.com/magnetizing-inrush-current-in-power-transformer/
What he's trying to say is, if you energize a transformer at the very same point of the sinewave from where it was denergized, you'll have minimum inrush. However, if it's energized at 180 degrees away on the sinewave, that will cause a maximum inrush.
Great explanation sir!
Real circuit breakers can be calibrated to trip when they see certain amounts of current over a period of time. Therefore, they are calibrated to not trip if they see the inrush current for a few milliseconds. However, they will trip if they see that current for longer than that.
Tell about harmonics also and complete the topic..
dear sir why are u not incorporating negative sign bcz of lenz's law in equation of emf?
what will happen to magnetising current and flux in case of open Delta connection?
Please answer this question in points
Explain inrush current of transformer and state the instants of maximum and minimum inrush currents ❤️
3:24 core becomes saturated just above 2 fi m not fi m
It saturte just after fi m
How come flux will reach max one fourth cycle it reaches max at 180 ie when applied voltage at 0
here one fourth cycle reprensents phase difference of 90 as 1 cycle=360 degree so 1/4=360degrees/4= 90 degrees, and here flux and voltage wave has a phase difference of 90 degrees
good one
Thank u sir
You took a long time to explain that.
No, Thank you sir :)
your just reading some source!
What else did u expect him to do ??