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    Circuit analysis and efficiency

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    A fully loaded 440V, three phase motor draws 12.4A at 86% power factor (pf). Its speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft*1.356=39.5Nm. What is the output HP and the efficiency?

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    Solution Summary

    This solution uses the brief calculation through equations to find the efficiency and output HP of the circuit.