KW and KVA can always be seen on the nameplate of diesel generator sets, and people who are new to the product can't always tell the relationship between the two.
KVA is apparent power, which includes active power and reactive power.
KW is active power.
KW=KVA×power factor.
For example: 1KW=1.25KVA or 1KVA=0.8KW
Generator active power unit KW
Generator apparent power unit KVA (also called installed capacity)
Active power = apparent power × power
Power factor = Cosφ (generally 0.85)
in addition:
Generator reactive power unit KVar
Apparent power^2 = active power^2 + reactive power^2
P＝UIcosφ
P=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.
