kVA Vs kVAR and the difference?

What is kVA stand for?

kVA is an apparent power measurement that gives you the overall amount of power in use in a system. kW equals kVA in a 100% efficient system. However, because electrical systems are never completely efficient, not all of the system’s perceived power is employed for useful work output.

What is kVAR stand for?

kVAR is a measure of reactive power, or power that has not been transformed into kVA. In layman’s terms, reactive power is the underutilized power created by a generator’s reactive components.

Motion, light, heat, and sound are all powered by kW (real power) when energy from a generator is used. Reactive power, which is affected by the power factor, is the power that creates magnetic fields that drive spinning machinery.

What is the difference between kVA, kW, and kVAR?

Electrical efficiency is stated as a power factor between 0 and 1: the closer to 1 the power factor, the more effectively the kVA is transformed into useable kW. The power factor of generators is 0.8.

Active power (kW) and reactive power (kVAR) are both components of apparent power (kVA).

[kW + kVAR = kVA]

As a result, the Power factor formula is:

Active power (kW) multiplied by 100 / Apparent power (kVA)

What is the formula to calculate kVAR?

Generator A:

kW: 80

kVA: 100 = 80 kW + 20 kVAR

Power Factor: 80/100 = 0.8