Keywords:
Power
Power Factor
Problem #2
Three 220 Vrms loads are connected in parallel. Load 1 absorbs an average power of 800 W and a reactive power of 200 VAR. Load 2 absorbs an average power of 600 W at 0.6 lagging power factor. Load 3 is a 80 Ω resistor in series with a capacitive reactance of 60 Ω. What is the pf of the equivalent load as seen by the voltage source?
Need a hint?
Find the complex power of each of the three loads. The total complex power is the sum of the complex power of the three loads. The power factor can be calculated by taking the average power divided by the apparent power.