What is ment by KVAR and what are the advantage&dis-
advantages of KVAR
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Answer Posted / mohd. karim
KVAR - Reactive Power
It's Present only in Inductive load, i.e. X-mer, Motor, X-
mission Line..etc
And This power is required for generating Magnetic field in
inductive load.
Here, i want to explain some formuls
KVA = Sqrt((kw)^2 + (Kvar)^2)
Where , KVA = Apparant Power
KW= Actual Power
Kvar= Reactive Power
PF=KW/Kva = KW/(KW+Kvar) = COS$
1. If the value of kvar is more. it means PF is Less.
2. If the value of Kvar is zero. It means Unity PF (PF=1).
it means Apparant Power is Maxi. and over KW Loading is
Maxi.
--> Practically PF is not Unity (PF=1). its near about One.
For Reducing Kvar Demand We install Capacitor In Ckt.
Dis-Advantage (If Kvar is More)
1. less KW Loading(Low load Allow) in system.
2.Power Factor will Poor.
3.High current in system so Conductor & Cable size increase.
4.Electricity bill will more (Money Loss)
| Is This Answer Correct ? | 33 Yes | 2 No |
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