Why Transformer Rating in KVA.

Transformer Rating in KVA.

1-KVA is Rated Output is Limited by Heating hence Losses in the Transformer.

2- Mainly Two Type Losses in Transformer.

    1-  Core Losses .

     2- Ohmic Losses.

1- Core Losses Depends on Voltage.

:Core Losses Find out by Transformer Open Circuit Test Perform.

2- Ohmic Losses Depends on Current.

 : Ohmic Losses find out by Transformer Short Circuit Test.

* So Losses Depends on Voltage (V) & Current (A) is almost unaffected by Load power factor.

So Transformer Rating in KVA.