A three-phase, four-pole, 60-Hz induction motor is running at 1746 rpm under full load. Determine the regenerative
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A three-phase, four-pole, 60-Hz induction motor is running at 1746 rpm under full load. Determine the regenerative braking torque at the instant of frequency suddenly reduced to 95% using variable frequency drive while maintaining the V/f ratio constant. Develop your answers in percentage of rated values.
Transcribed Image Text:
60 Hz 100% V 1750 rpm TM 0 TG Ramp down Vand f, keeping V/f constant Motor torque Frequency - Voltage Speed Generator torque RG braking off Mechanical brakes on Time
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Equations b and c in a give T em K 4 rotor slip speed At 60 Hz torque rated value synch speed 18...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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