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A 415 V, 50 Hz, 4-pole, three-phase squirrel-cage induction motor runs at a speed of 1425 rpm. motor draws 60 A at power factor 0.85 lagging. The stator copper losses and iron losses are 2 kW 1800 W, respectively. The windage and friction losses are 500 W, and the stray losses are neglig Determine the following: i) Rotor frequency ii) The air-gap power ) Th eal nouor

A 415 V, 50 Hz, 4-pole, three-phase squirrel-cage induction motor runs at a speed of 1425 rpm. motor draws 60 A at power factor 0.85 lagging. The stator copper losses and iron losses are 2 kW 1800 W, respectively. The windage and friction losses are 500 W, and the stray losses are neglig Determine the following: i) Rotor frequency ii) The air-gap power ) Th eal nouor

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A 415 V, 50 Hz, 4-pole, three-phase squirrel-cage induction motor runs at a speed of 1425 rpm. The motor draws 60 A at power factor 0.85 lagging. The stator copper losses and iron losses are 2 kW and 1800 W, respectively. The windage and friction losses are 500 W, and the stray losses are negligible. Determine the following: i) Rotor frequency ii) The air-gap power i11) The rotor copper losses and converted mechanical power. iV) The shaft torque of this motor at rated load.]
Transcribed Image Text:A 415 V, 50 Hz, 4-pole, three-phase squirrel-cage induction motor runs at a speed of 1425 rpm. The motor draws 60 A at power factor 0.85 lagging. The stator copper losses and iron losses are 2 kW and 1800 W, respectively. The windage and friction losses are 500 W, and the stray losses are negligible. Determine the following: i) Rotor frequency ii) The air-gap power i11) The rotor copper losses and converted mechanical power. iV) The shaft torque of this motor at rated load.]
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