Answer Posted / b.prakash.

KVA meanas apparent power it depends on power factor if
power factor is high the efficiency of system also high.
But in MW it true power means (load) if u r using a 2kw
heater then it will consume 2 kw. but in KVA suppose for ex.
transformer capacity is 1000kva & PF is 0.8 means we can
use only 80% of the total kva & it depends on the load also
that which type of load u r using. if u r using, capacitive
load or resistance load then the PF will be high. But if u
r using Inductive load then the PF will be less.

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