Why is transformer rated in KVA not KW

Question

Accepted Answer

Transformers are rated in KVA because they are designed to handle both real power (KW) and reactive power (KVAR).

KVA represents the apparent power of the transformer, which is the combination of real power (KW) and reactive power (KVAR).
Reactive power is necessary for the magnetization of the transformer's core and does not contribute to useful work.
The rating in KVA ensures that the transformer can handle both the real and reactive power demands of the load.
For example, a transformer with a rating of 100 KVA can handle a load of 80 KW and 60 KVAR.
Using KVA rating allows for proper sizing and selection of transformers based on the total power requirements.

Accepted Answer

Because theire is no rmf in transformer its static electrical device

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