in power station power measuring unit is KW but in
transformer is KVA why?
Answer Posted / mahmood al-ali
1- Any transformer includes core losses and copper losses
2- Core losses are based on input voltage
3- Copper losses are based on current flowing through winding
4- Therefor, total losses are based on voltage in addition to current but not power factor.
Thus, the rating of transformer is done in KVA not in KW
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