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A 25 hp, 460 V, 60 Hz, 4 poles, Y connected three phase induction motor has the following per-phase impedances referred to the stator circuit: Rs = 0.641 Q RR = 0.332 Q Xs = 1.106 Q XR = 0.464 Q Xm = 26.3 Q The total rotational losses and core loss are lumped together, constant at (1100 + x00) W, where x is the last digit of your student ID number. For a rotor slip of 2.2 % at the rated voltage and rated frequency, i) Draw the equivalent circuit of the induction motor with proper label of all parameters. ii) Calculate the stator current, rotor current and magnetizing current of the induction motor iii) Calculate the power factor

A 25 hp, 460 V, 60 Hz, 4 poles, Y connected three phase induction motor has the following per-phase impedances referred to the stator circuit: Rs = 0.641 Q RR = 0.332 Q Xs = 1.106 Q XR = 0.464 Q Xm = 26.3 Q The total rotational losses and core loss are lumped together, constant at (1100 + x00) W, where x is the last digit of your student ID number. For a rotor slip of 2.2 % at the rated voltage and rated frequency, i) Draw the equivalent circuit of the induction motor with proper label of all parameters. ii) Calculate the stator current, rotor current and magnetizing current of the induction motor iii) Calculate the power factor

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 25 hp, 460 V, 60 Hz, 4 poles, Y connected three phase induction motor has the following per-phase impedances referred to the stator circuit: Rs = 0.641 Q RR = 0.332 Q Xs = 1.106 Q XR = 0.464 Q Xm= 26.3 Q The total rotational losses and core loss are lumped together, constant at (1100 + x00) W, where x is the last digit of your student ID number. For a rotor slip of 2.2 % at the rated voltage and rated frequency, i) Draw the equivalent circuit of the induction motor with proper label of all parameters. ii) Calculate the stator current, rotor current and magnetizing current of the induction motor iii) Calculate the power factor iv) Calculate the output power v) Calculate the efficiency of the induction motor
Transcribed Image Text:A 25 hp, 460 V, 60 Hz, 4 poles, Y connected three phase induction motor has the following per-phase impedances referred to the stator circuit: Rs = 0.641 Q RR = 0.332 Q Xs = 1.106 Q XR = 0.464 Q Xm= 26.3 Q The total rotational losses and core loss are lumped together, constant at (1100 + x00) W, where x is the last digit of your student ID number. For a rotor slip of 2.2 % at the rated voltage and rated frequency, i) Draw the equivalent circuit of the induction motor with proper label of all parameters. ii) Calculate the stator current, rotor current and magnetizing current of the induction motor iii) Calculate the power factor iv) Calculate the output power v) Calculate the efficiency of the induction motor
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