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A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y 4 Wound R= 0.55N R=0.25N Χ-1.20 Ω Χ-0.40 Ω XM= 35.0 2 Slip 3% Core losses 250 W Friction and windage losses Stray losses 150 W 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. (c) The line current.

A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y 4 Wound R= 0.55N R=0.25N Χ-1.20 Ω Χ-0.40 Ω XM= 35.0 2 Slip 3% Core losses 250 W Friction and windage losses Stray losses 150 W 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. (c) The line current.

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
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QUESTION 4 A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y Wound R= 0.55N R= 0.252 X1 = 1.20 2 X2= 0.40 2 XM= 35.0 Q Slip 3% Core losses 250 W Friction and windage losses Stray losses 150 W 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. (c) The line current. (d) The stator copper loss and air-gap power. (e) The converted power and output power. (f) The efficiency of motor at full load conditions. (g) The induced and load torque.
Transcribed Image Text:QUESTION 4 A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y Wound R= 0.55N R= 0.252 X1 = 1.20 2 X2= 0.40 2 XM= 35.0 Q Slip 3% Core losses 250 W Friction and windage losses Stray losses 150 W 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. (c) The line current. (d) The stator copper loss and air-gap power. (e) The converted power and output power. (f) The efficiency of motor at full load conditions. (g) The induced and load torque.
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