Determine (a) rotor copper loss, (b) the input to the motor, and (c) the efficiency of a 3 phase induction motor running on full load and develops a useful torque of 150 N.m at a rotor frequency of 1. 5Hz. Calculate the shaft power output, if the mechanical torque lost in friction be 10 N.m, the total stator loss is 700 watts. .Take into consideration that the machine has 6-poles and run at 50HZ supply نقطتان )2( * Rotor copper loss 0.5026 0.5036 0.5126 0.5046 0.5136 نقطتان )2( * Input to motor 17.4546 17.5556 17.4558 16.646 16.4546 none of the mentioned (2) Eha efficiency 87.29 86.28 87.296 87.35 87 44

Determine (a) rotor copper loss, (b) the input to the motor, and (c) the efficiency of a 3 phase induction motor running on full load and develops a useful torque of 150 N.m at a rotor frequency of 1. 5Hz. Calculate the shaft power output, if the mechanical torque lost in friction be 10 N.m, the total stator loss is 700 watts. .Take into consideration that the machine has 6-poles and run at 50HZ supply نقطتان )2( * Rotor copper loss 0.5026 0.5036 0.5126 0.5046 0.5136 نقطتان )2( * Input to motor 17.4546 17.5556 17.4558 16.646 16.4546 none of the mentioned (2) Eha efficiency 87.29 86.28 87.296 87.35 87 44

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

Determine (a) rotor copper loss, (b) the input to the motor, and (c) the efficiency
of a 3 phase induction motor running on full load and develops a useful torque of
150 N.m at a rotor frequency of 1. 5Hz. Calculate the shaft power output, if the
mechanical torque lost in friction be 10 N.m, the total stator loss is 700 watts.
Take into consideration that the machine has 6-poles and run at 50HZ supply
نقطتان )2(
Rotor copper loss
0.5026
0.5036
0.5126
0.5046
0.5136
نقطتان )2(
* Input to motor
17.4546
17.5556
17.4558
16.646
16.4546
none of the mentioned
نقطتان )2(
efficiency
87.29
86.28
87.296
87.35
87.44

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