KW=KVA×power factor.
For example: 1KW=1.25KVA or 1KVA=0.8KW
Active power=apparent power × power
Power factor {{0}} Cosφ (generally 0.85)
Apparent power^2=active power^2 + reactive power^2
P{{0}}UI is only applicable to purely resistive loads, because the power factor of resistive loads is 1; however, the power factor of inductive loads is not 1, ranging from 0.5 to 0.9, or even lower.
So 1kva=0.8kw
1kva=1kw is correct to 1kva=0.8kw, which is the calculation method when the power factor is 0.8.
