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Is 0.2 o 1.8 o I'R 0.3 0 250 40 D Given the above approximate equivalent circuit for a 440VL, 60 Hz, 3-phase, 1728 rpm, wyeconnected, 30 bp induction motor operating at rated voltage, calculate the following: (a) Magnetizing current IM = (b) The torque developed when the rotor slip is 2%. T= (c) The motor full-load torque, line current and power factor. TEL) = ILFL) = pfFL) =

Is 0.2 o 1.8 o I'R 0.3 0 250 40 D Given the above approximate equivalent circuit for a 440VL, 60 Hz, 3-phase, 1728 rpm, wyeconnected, 30 bp induction motor operating at rated voltage, calculate the following: (a) Magnetizing current IM = (b) The torque developed when the rotor slip is 2%. T= (c) The motor full-load torque, line current and power factor. TEL) = ILFL) = pfFL) =

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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Is 0.2 D 1.8 - I'R VSLN) 0.3 D 250 0 40 n Given the above approximate equivalent circuit for a 440VLL, 60 Hz, 3-phase, 1728 rpm, wyęconnected, 30 bp induction motor operating at rated voltage, calculate the following: (a) Magnetizing current IM = (b) The torque developed when the rotor slip is 2%. T = (c) The motor full-load torque, line current and power factor. TEL) = ILFL) = pfFL) = (d) The motor locked-rotor (starting) torque, line current and power factor. TAR = ILAR) = pfar) = ELE2117 IM equivalent circuit Feb 2022 Final Exam Assignment Part 2 (e) The motor breakdown torque, line current and power factor. T(BD) = ILBD) = pfBD) = (f) i. Complete the table below using the data from your previous calculations. ii Neatly draw the Torque vs speed graph for the motor on the axes provided. Clearly label the Torque axis and identify the operational points. Rotor speed - pR (грm) Torque (Nm) Locked Rotor Breakdown Full load 2% slip No load Torque Nm) 200 600 1000 1400 1800 Rotor speed (rpm)
Transcribed Image Text:Is 0.2 D 1.8 - I'R VSLN) 0.3 D 250 0 40 n Given the above approximate equivalent circuit for a 440VLL, 60 Hz, 3-phase, 1728 rpm, wyęconnected, 30 bp induction motor operating at rated voltage, calculate the following: (a) Magnetizing current IM = (b) The torque developed when the rotor slip is 2%. T = (c) The motor full-load torque, line current and power factor. TEL) = ILFL) = pfFL) = (d) The motor locked-rotor (starting) torque, line current and power factor. TAR = ILAR) = pfar) = ELE2117 IM equivalent circuit Feb 2022 Final Exam Assignment Part 2 (e) The motor breakdown torque, line current and power factor. T(BD) = ILBD) = pfBD) = (f) i. Complete the table below using the data from your previous calculations. ii Neatly draw the Torque vs speed graph for the motor on the axes provided. Clearly label the Torque axis and identify the operational points. Rotor speed - pR (грm) Torque (Nm) Locked Rotor Breakdown Full load 2% slip No load Torque Nm) 200 600 1000 1400 1800 Rotor speed (rpm)
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