Answer Posted / santosh kumar singh

basically the difference is in there cooling system,voltage
level and core material.
the core of power transformer is made up CRGO where as the
core of distribution transformer is made up of silicon steel.
generally the voltage level of power transformer is above
33kv and for this we use ONAF COOLING means we suppliment it
from fan for cooling and in distribution transformer
radiator is sufficient for cooling.

pls someone send me sample question papers along with the key.thanks in advance

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