Page 366 - Basic Electrical Engineering

So,

or,

Total line current,

Current, I lags voltage, V by 15°

Power factor = cos ϕ = cos 15° = 0.96 lagging

Magnitude of current, I = 20.68 A

Supply voltage, V = 230 V

Power consumed,

P = VI cos ϕ

= 230 × 20.68 × 0.96

= 4566 W