A 110-hp, three-phase, wye-connected, 50-Hz, 440-V, four-pole, cylindrical-rotor synchronous motor is operating at rated conditions and 80 percent power-factor leading. The efficiency, excluding field and stator losses, is 96 percent, and the synchronous reactance is 3.43 Ohms/phase. Determine the pull-out torque of the motor in lb-ft. Give your final answer in 2 decimal places.

A 110-hp, three-phase, wye-connected, 50-Hz, 440-V, four-pole, cylindrical-rotor synchronous motor is operating at rated conditions and 80 percent power-factor leading. The efficiency, excluding field and stator losses, is 96 percent, and the synchronous reactance is 3.43 Ohms/phase. Determine the pull-out torque of the motor in lb-ft. Give your final answer in 2 decimal places.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter33: Single-phase Motors

Section: Chapter Questions

Problem 17RQ

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