Page 349 - Basic Electrical Engineering

lagging the reference axis by 22.6° as shown in Fig. 3.43. The angle between
phasor V and phasor I is 69.4°. This is the power factor angle.

Power factor,

cos ϕ = cos69.4°
= 0.35 lagging

Figure 3.43

Power consumed,

P = VIcosϕ

P = 233 × 19.2 × 0.35
= 1565.76 W

If supply frequency is taken as 50 Hz, the value of L can be calculated from

X .
L