A power distribution center serves single-phase load via cable and a 50-kVA 277/120-V step-down transformer. Based on

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A power distribution center serves single-phase load via cable and a 50-kVA 277/120-V step-down transformer. Based on the transformer kilovoltampere rating, the cable impedance is 2 + j1%, and the transformer impedance is 1 + j5%. The equipment is drawing 75% load at 86.6% power factor lagging. Using pu values, determine the % voltage regulation from the distribution center to the load point.

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