A three-phase induction motor running from 460-V supply lines is drawing 60-A rated current at 0.90 power
Question:
A three-phase induction motor running from 460-V supply lines is drawing 60-A rated current at 0.90 power factor lagging. The power losses estimated from the manufacturer’s data sheet at this load are 3000 W in the conductor, 1024 W in the magnetic core, and 1000 W in friction and aerodynamic windage. Determine
(1) The output power and efficiency at rated load and
(2) The maximum efficiency and the corresponding percentage of load.
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Step by Step Answer:
1 Output power and efficiency at rated load a Apparent power First calculate the apparent power input Since the motor operates on three phases and the ...View the full answer
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Related Book For 
Introduction To Electrical Power And Power Electronics
ISBN: 9781466556607
1st Edition
Authors: Mukund R. Patel
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