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Q2/ A double-cage induction motor have the following equivalent circuit parameters, all of which are phase values referred to the primary: Outer cage R,'= 10n Inner cage R'= 0.42 1-Calculate the ratio of torques produced by outer cage and inner cage at stanting. 2- If the motor runs with the slip of 4% on full load at the rotor equivalent voltage 50 V per phase. Calculate i) the rotor current and ii) the torque contributed by inner and outer cages. X = 0.8 2 X' = 4 2

Q2/ A double-cage induction motor have the following equivalent circuit parameters, all of which are phase values referred to the primary: Outer cage R,'= 10n Inner cage R'= 0.42 1-Calculate the ratio of torques produced by outer cage and inner cage at stanting. 2- If the motor runs with the slip of 4% on full load at the rotor equivalent voltage 50 V per phase. Calculate i) the rotor current and ii) the torque contributed by inner and outer cages. X = 0.8 2 X' = 4 2

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Q2/ A double-cage induction motor have the following equivalent circuit parameters, all of which are phase values referred to the primary: Outer cage R,' 10 2 Inner cage R,= 0.42 1-Calculate the ratio of torques produced by outer cage and inner cage at starting. 2- If the motor runs with the slip of 4% on full load at the rotor equivalent voltage 50 V per phase. Calculate i) the rotor current and ii) the torque contributed by inner and outer cages. X = 0.8 2 X,' = 4 2
Transcribed Image Text:Q2/ A double-cage induction motor have the following equivalent circuit parameters, all of which are phase values referred to the primary: Outer cage R,' 10 2 Inner cage R,= 0.42 1-Calculate the ratio of torques produced by outer cage and inner cage at starting. 2- If the motor runs with the slip of 4% on full load at the rotor equivalent voltage 50 V per phase. Calculate i) the rotor current and ii) the torque contributed by inner and outer cages. X = 0.8 2 X,' = 4 2
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