A balanced Y-connected load having an impedance of is connected in parallel with a

Chapter 11, Problem 11.17

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A balanced Y-connected load having an impedance of \(60-j 45 \Omega / \phi\) is connected in parallel with a balanced \(\Delta\)-connected load having an impedance of \(90 \sqrt{2} \angle 45^{\circ} \Omega / \phi\). The paralleled loads are fed from a line having an impedance of \(2+j 2 \Omega / \phi\). The magnitude of the line-to-line voltage of the \(\Delta\)-load is \(300 \sqrt{3} \mathrm{~V}\).

a) Calculate the magnitude of the phase current in the Y-connected load.

b) Calculate the magnitude of the phase current in the \(\Delta\)-connected load.

c) Calculate the magnitude of the current in the line feeding the loads.

d) Calculate the magnitude of the line voltage at the sending end of the line.

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