Texts: Two wattmeters are connected to measure the power of an unbalanced load. The unbalanced load consists of 2 balanced loads (3 kW with 0.5 power factor lagging and 4 kVA with 0.8 power factor leading) and a single-phase 4 kW resistive load connected across lines b and c. Using a line voltage of 200 V, find: a) Readings of the two wattmeters, b) VAR-meter readings if they replace the wattmeters, c) Vector power factor. The solution says that a) Wa = 2293.37 W and Wc = 7908.29 W, b) Qa = -3187.35 VAR and Qc = 392.31 VAR, and c) vpf = 0.9644 lagging. I've tried many different ways to get these answers but it's not matching. Please help.
