Three identical impedances $Z_{\Delta}=20 / 60^{\circ} \Omega$ are connected in $\Delta$ to a balanced threephase $480-\mathrm{V}$ source by three identical line conductors with impedance $Z_{\mathrm{L}}=$ $(0.8+j 0.6) \Omega$ per line. (a) Calculate the line-to-line voltage at the load terminals.
(b) Repeat part (a) when a $\Delta$-connected capacitor bank with reactance $(-j 20) \Omega$ per phase is connected in parallel with the load.

Question

Quizplus · Accepted Answer

The Answer of Three identical impedances $Z_{\Delta}=20 / 60^{\circ} \Omega$ are connected in $\Delta$ to a balanced threephase $480-\mathrm{V}$ source by three identical line conductors with impedance $Z_{\mathrm{L}}=$ $(0.8+j 0.6) \Omega$ per line. (a) Calculate the line-to-line voltage at the load terminals.
(b) Repeat part (a) when a $\Delta$-connected capacitor bank with reactance $(-j 20) \Omega$ per phase is connected in parallel with the load.

Three Identical Impedances ZΔ=20/60∘ΩZ_{\Delta}=20 / 60^{\circ} \OmegaZΔ​=20/60∘Ω Are Connected In Δ\DeltaΔ To a Balanced Threephase

Three Identical Impedances $Z_{\Delta}=20 / 60^{\circ} \Omega$ Are Connected In $\Delta$ To a Balanced Threephase