A commercially available three-phase inductive motor

Chapter 12, Problem 12.83

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A commercially available three-phase inductive motor operates at a full load of 120 hp (1 hp 746 W) at 95 percent efficiency at a lagging power factor of 0.707. The motor is connected in parallel to a 80-kW balanced three-phase heater at unity power factor. If the magnitude of the line voltage is 480 V rms, calculate the line current.

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