A three-phase, 4-pole IM draws 55kW real power from a three-phase 60Hz feeder. The copper and iron losses in the stator amount to 4kW. If the motor runs at 1740 rpm, draw power flow and calculate: a) the airgap power. b) the rotor loss. c) gross mechanical power. d) if the mechanical loss is 2kW, calculate the efficiency of the motor.
A three-phase, 4-pole IM draws 55kW real power from a three-phase 60Hz feeder. The copper and iron losses in the stator amount to 4kW. If the motor runs at 1740 rpm, draw power flow and calculate: a) the airgap power. b) the rotor loss. c) gross mechanical power. d) if the mechanical loss is 2kW, calculate the efficiency of the motor.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A three-phase, 4-pole IM draws 55kW real power from a three-phase 60Hz feeder.
The copper and iron losses in the stator amount to 4kW. If the motor runs at 1740 rpm, draw power flow and calculate:
a) the airgap power.
b) the rotor loss.
c) gross mechanical power.
d) if the mechanical loss is 2kW, calculate the efficiency of the motor.
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