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why transformer ratings in kva?
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Answer Posted / ravi babu p
The performance of the transformer is estimated in terms of
efficiency and the efficiency is influenced by the losses,
i.e. core and copper losses. Core losses are depends on the
magnitude of voltage(V) and No-load current(A) (very small
in magnitude), where copper losses depends on the full load
current(A). Hence, the transformer is rated in kVA.
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