a. A 4-pole, 50 Hz, 440 V, 85 kW, 3-phase star-connected synchronous motor has resistance and synchronous reactance per phase of 0.05 ohm and 0.5 ohms respectively. Assuming the efficiency of the synchronous motor is 92.5 percent and a full load power factor of 0.8 leading, compute for the, armature current, back emf per phase, total copper loss, torque, and mechanical power developed. b. A three-phase, delta-connected synchronous motor has an excitation of 425 volts. The resistance and synchronous reactance per phase is 0.4 ohms and 5 ohms respectively. The induced emf is 530 volts. Calculate power output, line current, power factor; and efficiency for maximum power output if the friction and iron losses are constant at 1200 watts.
a. A 4-pole, 50 Hz, 440 V, 85 kW, 3-phase star-connected synchronous motor has resistance and synchronous reactance per phase of 0.05 ohm and 0.5 ohms respectively. Assuming the efficiency of the synchronous motor is 92.5 percent and a full load power factor of 0.8 leading, compute for the, armature current, back emf per phase, total copper loss, torque, and mechanical power developed. b. A three-phase, delta-connected synchronous motor has an excitation of 425 volts. The resistance and synchronous reactance per phase is 0.4 ohms and 5 ohms respectively. The induced emf is 530 volts. Calculate power output, line current, power factor; and efficiency for maximum power output if the friction and iron losses are constant at 1200 watts.
a. A 4-pole, 50 Hz, 440 V, 85 kW, 3-phase star-connected synchronous motor has resistance and synchronous reactance per phase of 0.05 ohm and 0.5 ohms respectively. Assuming the efficiency of the synchronous motor is 92.5 percent and a full load power factor of 0.8 leading, compute for the, armature current, back emf per phase, total copper loss, torque, and mechanical power developed. b. A three-phase, delta-connected synchronous motor has an excitation of 425 volts. The resistance and synchronous reactance per phase is 0.4 ohms and 5 ohms respectively. The induced emf is 530 volts. Calculate power output, line current, power factor; and efficiency for maximum power output if the friction and iron losses are constant at 1200 watts.
a. A 4-pole, 50 Hz, 440 V, 85 kW, 3-phase star-connected synchronous motor has resistance and synchronous reactance per phase of 0.05 ohm and 0.5 ohms respectively. Assuming the efficiency of the synchronous motor is 92.5 percent and a full load power factor of 0.8 leading, compute for the, armature current, back emf per phase, total copper loss, torque, and mechanical power developed.
b. A three-phase, delta-connected synchronous motor has an excitation of 425 volts. The resistance and synchronous reactance per phase is 0.4 ohms and 5 ohms respectively. The induced emf is 530 volts. Calculate power output, line current, power factor; and efficiency for maximum power output if the friction and iron losses are constant at 1200 watts.
Branch of science that deals with the stationary and moving bodies under the influence of forces.
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