Answer / binod

GENERALLY ALL POWER TRANSFORMERS RATED IN MVA(MEGA VOLT
AMPER) WITH TWO RATING LIKE(100/133.MVA)FIRST RATING STANDS
FOR NATURAL COOLING &SECOND RATING STANDS FOR FORCED
COOLING.

Answer / ajayk

well a transformer is a power
transfer device so only one
mva rating is possible but two
voltage rating are there
i.e.primary and
secordary.230/115kv is a step
up transformer.but i have
never found such a rating but
step up is done normally at
generation stage(from 33kv).

Answer / binod

GENERALLY ALL POWER TRANSFORMERS RATED IN MVA(MEGA VOLT
AMPER) WITH TWO RATING LIKE(100/133.MVA)FIRST RATING STANDS
FOR NATURAL COOLING &SECOND RATING STANDS FOR FORCED
COOLING(by air,water or any other morden tech).
230/115kv means it is a stepdown tr.

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