5 Questions
For inductive loads, as the phase angle $\phi$ increases, what happens to the load power factor?
It decreases
At what phase angle does one of the wattmeters read zero and the other reads the total three phase active power for an inductive load?
$60°$ Lag
What happens to the wattmeter readings when the phase angle is greater than $60°$ (or power factor of the load is less than $0.5$ Lag) for an inductive load?
One of the wattmeters reads negative
For capacitive loads, which equation represents the reading of wattmeter W1?
$W1 = V_{RY}I_R\cos(30-\phi)$
At what phase angle do both wattmeters read positive for a capacitive load?
$0°$
Test your knowledge on variations in wattmeter readings in three-phase balanced systems with inductive loads and their relation to power factor. Explore the impact of phase angle on wattmeter readings and the corresponding power factor values.
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