A balanced, three phase load is connected in delta to a three wire, 1 kV, 50 Hz, balanced RST supply. The supply is connected through a three-phase wattmeter and one line is connected through an ammeter. Each load consists of a resistance in parallel with an inductance.
a) If the wattmeter reads 60 kW (total three phase power) and the ammeter reads 60 A, what is the resistance and reactance of each load?
b) If the resistor and inductor were connected in series in the delta load, what would the new meter readings be (ammeter and wattmeter)?
c) What is the power factor on each line in each case?





