The phase voltage at the terminals of a balanced three-phase Y-connected load is 2400 V. The load lias an impedance of 16 + j12 Ω/ϕ. and is fed from a line having an impedance of 0.10 + j0.80Ω/ϕ. The Y connected souice at the sending end of the line has a phase sequence of acb and an internal impedance of 0.02 + j0.16Ω/ϕ. Use the a-phase voltage at the load as the reference and calculate (a) the line currents IaA, lbB, and lcC; (b) the line voltages at the source, Vab, Vbc, and Vca; and (c) the internal phase-to-neutral voltages at the source, Va’n Vb’n, and Vc’n.
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