A three-phase, 30-hp, 60-Hz, 1900-V, 500 r/min, salient-pole synchronous motor has direct-axis and quadrature-axis reactances equal to 36.38 Ohms/phase and 24.25 Ohms/phase, respectively. Neglecting losses, determine the power, in watts, drawn by the motor if the field current is adjusted so that the excitation voltage is equal to 2.1 times the applied stator voltage, and the load is increased until maximum reluctance torque occurs. Give your final answer in 2 decimal places.
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Give your final answers in at least 2 decimal places - make it 3 or 4 decimal places whenever required in the problem. If you are doing a step by step calculation, maintain 6 decimal places in your in-between calculations to hit good accuracy in your final answers. Use 1 hp = 746 Watts in your conversion whenever necessary.
A three-phase, 30-hp, 60-Hz, 1900-V, 500 r/min, salient-pole synchronous motor has direct-axis and quadrature-axis reactances equal to 36.38 Ohms/phase and 24.25 Ohms/phase, respectively. Neglecting losses, determine the power, in watts, drawn by the motor if the field current is adjusted so that the excitation voltage is equal to 2.1 times the applied stator voltage, and the load is increased until maximum reluctance torque occurs. Give your final answer in 2 decimal places.
Correct Answer: 172,167.36 ± 0.01
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