A 480-V, 100-kW, 50-Hz, four-pole, Y-connected synchronous motor has a rated power factor of 0.85 leading. At full load, the efficiency is 91 percent. The armature resistance is 0.08 2, and the synchronous reactance is 1.0 2. Find the following quantities for this machine when it is operating at full load: (a) Output torque (b) Input power (c) n

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6-11.
A 480-V, 100-kW, 50-Hz, four-pole, Y-connected synchronous motor has a rated power factor of 0.85
leading. At full load, the efficiency is 91 percent. The armature resistance is 0.08 2, and the synchronous
reactance is 1.0 2. Find the following quantities for this machine when it is operating at full load:
(a) Output torque
(b) Input power
(c) n
Transcribed Image Text:6-11. A 480-V, 100-kW, 50-Hz, four-pole, Y-connected synchronous motor has a rated power factor of 0.85 leading. At full load, the efficiency is 91 percent. The armature resistance is 0.08 2, and the synchronous reactance is 1.0 2. Find the following quantities for this machine when it is operating at full load: (a) Output torque (b) Input power (c) n
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