Why the generator rating in kva
Answer Posted / sdvyas
Generator rating is given in kVA,as generator is the souce
and delivers power to load. Load may be resistive,inductive
or capacitive.A 10 MVA generator will deliver 10 MW load if
power factor is unity,however if the power factor of the
load is 0.8 then generator can deliver active power up to
8MW only.It is up to user who efficienly generator power
may be utilised. Therfore, manufacturer always specify the
generator rating in KVA or MVA.
On the other hand, motor converts electrical energy into
mechanical energy.Therfore,its rating is given in KW as
power factor of the motor remain constant.
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