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#1




Convert kVA to kWh
Is it possible to convert 20kVA into kWhs?

#2




Re: Convert kVA to kWh
Not directly. You need to know two things.
1) Power factor: In ac electrical systems, the current and voltage may not be exactly in phase. The product of voltage x current x cos(phase angle) is power. However, the portion of current that is not in phase still costs the electric company money to transmit. So they may base their rates on kVA, not on kW for commercial contracts, in essence, charging you as though the current was inphase and represented power. (The user can install components that improve the power factor to minimize cost, and this is his incentive to do so.) When the power factor is one, kVA and kW are the same thing. 2) Time: kWh is the product of power and time. It is 1 kW for an hour, use it for two hours and it will be 2 kWh It won't be a perfect estimate, but you can assume the power factor is 1, so 20 kVA = 20 kW and multiply by the hours run to get kWh. 
#3




Re: Convert kVA to kWh
KWhr for 500 kva

#4




Re: Convert kVA to kWh
ok 20/.8=25 generaly

#5




Re: Convert kVA to kWh
I have a breaker panel in which we have increased the power factor 20  25 % meaning the total amp load before installing our inductive load capacitor 96 total amps after installation the total load draw reduced to 72 total amp draw which indicates a 7.5 10% reduction. How does that convert into KWH ?

#6




Re: Convert kVA to kWh
Quote:
If your capacitors have brought the PF to 1.0 then the KWH = voltage x hours x 0.072 KA. For 240 V it'd be kwh = 17 x hours. Last edited by HerrWarum; 07262011 at 11:06 AM. 
#7




Re: Convert 72kVA to kWh=
72kvar witch kwh=

#8




Re: Convert 72kVA to kWh=
See post #2.
However, the "r" in kVAr means it is ONLY the reactive or out of phase component, therefore 0 kW. You need the inphase component for power. 
#9




Re: Convert kVA to kWh
14000kva to kilowatt

#10




Re: Convert kVA to kWh
If the voltage and current are in phase (power factor = 1), 14000 kVA is 14000 kW.
Otherwise, multiply by the power factor (which is less than one) or by the cosine of the phase angle. 
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