Basic Electrical Concept - 2: kW kVA


 kWH means Kilo Watt hour

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kVA means Kilo Volt-Amps

kVA = Volts x Amps / 1000

Example: Equipment using Current = 2.5 A; Voltage = 120 Volt; Frequency = 50 Hz

kVA = 120 x 2.5 / 1000 = 0.3 kVA

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kW and kVA

Difference between kW and kVA is power factor. Power factor is generally given by equipment supplier.

Power factor = 0.95  then kVA x 0.95 = kW.

*Conversion from kWH to kVA. These are two different measures. kWH is energy and kVA is power . kW (power) and kVA (power) related by power factor.

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