Power factor in three phase system

  In our previous topic, we already know and had knowledge in getting power factor correction. Now in three phase system power factor is also applicable in correcting power consumer that is using this system.

using this example, you can easily get how to solve power factor correction.

Two balanced loads are connected to a 240-kV rms 60-Hz line, as

shown in Figure. Load 1 draws 30 kW at a power factor of 0.6

lagging, while load 2 draws 45 kVAR at a power factor of 0.8 lagging.

Assuming the abc sequence, determine: (a) the complex, real, and reactive

powers absorbed by the combined load, (b) the line currents, and

(c) the kVAR rating of the three capacitors -connected in parallel with

the load that will raise the power factor to 0.9 lagging and the capacitance

of each capacitor.