i have 28/32 MVA power transformer with 11/6.6 KC voltage
rating and 12%impedance.it have star connection at both
side.but it have another thied winding tertiary
winding.what is used of this winding.

pl tell me

Answer Posted / manish jauhari

Any unbalanced loads, results in increased cirulating
current with in tertiary Delta winding, thereby keepinng
pri & sec voltages with in limits.

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