A balanced three-phase star-connected load draws power from a 440 V supply. The two connected wattmeters, W1 and W2, indicate 5 kW and 1200 W. Calculate the total power.
A balanced three-phase star-connected load draws power from a 440 V supply. The two connected wattmeters, W1 and W2, indicate 5 kW and 1200 W. Calculate the total power.
Right Answer is:
6,200 W
SOLUTION
The sum of two wattmeters gives the total power consumption in the three-phase load i.e
Total Power = P1 + P2
Reading of wattmeter 1
W1 = 5 kW = 5000 watts
Reading of wattmeter 2
W2 = 1200 watts
Total power = 5000 + 1200 = 6200 watts