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how we can calculate the transformer size.
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Answer Posted / madhu253
Transformer size is depends upon the load.
For example
Take one building having load of 630KW
Now we can calculate the t/f size of the building
KW=KVA*P.f
630=KVA * 0.8
KVA = 630/0.8
KVA = 787.5 KVA
So the Transformer size is 800KVA
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