In a balanced three-phase system, the source is a balanced Y with an abc phase sequence

Chapter 11, Problem 11.16

(choose chapter or problem)

In a balanced three-phase system, the source is a balanced Y with an abc phase sequence and a line voltage \(\mathbf{V}_{\mathrm{ab}}=208 \angle 50^{\circ} \mathrm{V}\). The load is a balanced Y in parallel with a balanced \(\Delta\).The phase impedance of the Y is \(4+j 3 \Omega / \phi\) and the phase impedance of the \(\Delta\) is \(3-j 9 \Omega / \phi\). The line impedance is \(1.4+j 0.8 \Omega / \phi\). Draw the single phase equivalent circuit and use it to calculate the line voltage at the load in the a-phase.