What is ment by KVAR and what are the advantage&dis-
advantages of KVAR
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 |
Post New Answer View All Answers
how much leakage current is allowed in MC61A L&T make relay?
how to calculate the conductor size for certain KV transmission line and distribution line?
which connection is safer series or parallel?usually which connection we prefer at home?
what is mean by D.O. in distribution line poles?
how is the incoming cable size calculated for a given current rating of a panel??
Why is negative feedback invariably preferred in closed loop system?
What is kirchoff ’s current law (kcl)?
in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????
HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.
Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028
What is the use of iron core in a transformer?
sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason
for a 400kv t/m line with 10 ampere current will corona occur?