Is it possible to convert 20kVA into kWhs?
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Re: Convert kVA to kWh
Originally posted by Unregistered View PostIs it possible to convert 20kVA into kWhs?
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.

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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 ?
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Re: Convert kVA to kWh
Originally posted by calvin01 View PostI 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 ?
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, 12:06 PM.
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Re: Convert kVA to kWh
Originally posted by ENIERMANUE View PostIs it possible to convert 60kVA into kWhs?
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Re: Convert kVA to kWh
You can calculate kilowatthour from kilowatts and hours, but you can't convert kilowatt to kilowatthour, since kilowatt and kilowatthour units represent different quantities.
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