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When a square wave is applied to primary of a transformer
then what will be output wave form of secondary ?
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Answer Posted / guest
It can be a quasi or true sinusoidal form, depending on i.
period of the signal generator, ii. and the time constant
of the transformer winding [ ie inductive circuit]. A
combination of these two would determine the shape of your
output wave form. A mathematical analysis would be helpful
to determine the exact nature of the shape of wave where
t = L/R and at any instant before t , e = E[e^R/L]
If you were to then to plot a graph from t=0 to t =T, the
you can observe that e would define a a quarter period to
peak, and if you then take off the the square wave, the
inductive energy stored having E as induced voltage, in the
transformer will exactly define a mirror image when it
discharges ie e = E {1 - e^R/L]
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Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?
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