Answer / 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.

Answer / gopalakrishnan.s

WE HAVE INDOOR TRANSFORMER PLS SUGGEST IF WE PUT
THIS TRANSFORMER IN OUT SIDE SHELL WE ANY PROBLEM
WITHOUT SWITCHGEAR PLS I AM SEEKING YOUR VALUABLE
REPLY

Answer / abishekmittal

As per my knowledge, Indoor package substation refers to
GIS (Gas Insulated Switchgear) substation whereas in
outdoos substation we go for AIS (Air insulated
switchgear/circuit breakers). Also, GIS substation is much
more compact as compared to AIS/Otdoor substation.

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