Answer / appana ravi kumar

if we are using ONAF transformer , the winding temperature
of the transformer can be controlled , so the transformer
impedence also increase . transformer can be run above the
full load.

Answer / guest

Above Transformer with same electrical parameter will have
higher capacity when its cooling system provided with ONAF
upon ONAN cooling System. As well as its %Impedence will be
also increased as accordingly.

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