I was asked to calculate the value of the resistance/phase of the load in balanced 3-phase purely resistive load. it stated that there are two different ways to obtain the solution.
W1 = VL IL cos (30-theta)
W2 = VL IL cos (30+theta)
where voltage line= 110, Is = 0.86, W1=77 and W2=76.5, where W1 and W2 is wattmeter
W1+W2=153.5
theta=tan-1 ( * (W1-W2)/(W1+W2))
thus, I obtained theta = 0.810 where cos theta (pf) = 0.999
from this, how I calculated the resistance? is it only R=V/I = 110/0.86 = 127.91? or using the wattmeter result?
W1 = VL IL cos (30-theta)
W2 = VL IL cos (30+theta)
where voltage line= 110, Is = 0.86, W1=77 and W2=76.5, where W1 and W2 is wattmeter
W1+W2=153.5
theta=tan-1 ( * (W1-W2)/(W1+W2))
thus, I obtained theta = 0.810 where cos theta (pf) = 0.999
from this, how I calculated the resistance? is it only R=V/I = 110/0.86 = 127.91? or using the wattmeter result?