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3.2 A high torque cage induction motor has the following name plate data: RATING 45 kW PHASES 3 POLES 4 VOLTAGE 415 V FREQUENCY 50 Hz CURRENT 78.7 A CONNECTION STAR SPEED 1449 rev/min INSULATION Class E DESIGN CLASS A The equivalent circuits parameters are: R = 0n R, = 0.0870 2 R, = 0.0976 N XM = j14.5 N X, = j0.478 N x, = j0.478 2 Determine for the full load speed of 1449 rev/min: 3.2.1 the line current and power factor; 3.2.2 the gap power; 3.2.3 the efficiency if the friction and windage loss is 1.617 kW;

3.2 A high torque cage induction motor has the following name plate data: RATING 45 kW PHASES 3 POLES 4 VOLTAGE 415 V FREQUENCY 50 Hz CURRENT 78.7 A CONNECTION STAR SPEED 1449 rev/min INSULATION Class E DESIGN CLASS A The equivalent circuits parameters are: R = 0n R, = 0.0870 2 R, = 0.0976 N XM = j14.5 N X, = j0.478 N x, = j0.478 2 Determine for the full load speed of 1449 rev/min: 3.2.1 the line current and power factor; 3.2.2 the gap power; 3.2.3 the efficiency if the friction and windage loss is 1.617 kW;

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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Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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3.2 A high torque cage induction motor has the following name plate data: RATING 45 kW PHASES 3 POLES 4 VOLTAGE 415 V FREQUENCY 50 Hz CURRENT 78.7 A CONNECTION STAR SPEED 1449 rev/min INSULATION Class E DESIGN CLASS A The equivalent circuits parameters are: R. = 00 R, = 0.0870 Q R = 0.0976 N XM = j14.5 N X, = j0.478 N X,' = j0.478 N Determine for the full load speed of 1449 rev/min: 3.2.1 the line current and power factor; 3.2.2 the gap power; 3.2.3 the efficiency if the friction and windage loss is 1.617 kW; 3.2.4 the developed torque.
Transcribed Image Text:3.2 A high torque cage induction motor has the following name plate data: RATING 45 kW PHASES 3 POLES 4 VOLTAGE 415 V FREQUENCY 50 Hz CURRENT 78.7 A CONNECTION STAR SPEED 1449 rev/min INSULATION Class E DESIGN CLASS A The equivalent circuits parameters are: R. = 00 R, = 0.0870 Q R = 0.0976 N XM = j14.5 N X, = j0.478 N X,' = j0.478 N Determine for the full load speed of 1449 rev/min: 3.2.1 the line current and power factor; 3.2.2 the gap power; 3.2.3 the efficiency if the friction and windage loss is 1.617 kW; 3.2.4 the developed torque.
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