<P> (Φ is the phase shift for the first voltage, commonly taken to be 0 °--in this case Φ = - 120 ° and Φ = - 240 ° or 120 °) </P> <Dl> <Dd> I 12 = V 12 Z Δ ∠ (30 ∘ − θ), (\ displaystyle I_ (12) = (\ frac (V_ (12)) (Z_ (\ Delta))) \ angle (30 ^ (\ circ) - \ theta),) </Dd> </Dl> <Dd> I 12 = V 12 Z Δ ∠ (30 ∘ − θ), (\ displaystyle I_ (12) = (\ frac (V_ (12)) (Z_ (\ Delta))) \ angle (30 ^ (\ circ) - \ theta),) </Dd> <Dl> <Dd> I 23 = V 23 Z Δ ∠ (− 90 ∘ − θ), (\ displaystyle I_ (23) = (\ frac (V_ (23)) (Z_ (\ Delta))) \ angle (- 90 ^ (\ circ) - \ theta),) </Dd> </Dl>

What is 3 phase and 2 phase power