Q25/ A 3000V, 24-pole, 50HZ, 3-phase, star-connected induction motor has a slip ring rotor of resistance 0.0162 and standstill reactance 0.2652 per phase. Full-load torque is obtained at a speed of 247 r.p.m. Calculate (i) the ratio of maximum to full-load torque (ii) the speed at maximum torque. Neglect stator impedance. Ans[2.61 , 235 r.p.m.]

Q25/ A 3000V, 24-pole, 50HZ, 3-phase, star-connected induction motor has a slip ring rotor of resistance 0.0162 and standstill reactance 0.2652 per phase. Full-load torque is obtained at a speed of 247 r.p.m. Calculate (i) the ratio of maximum to full-load torque (ii) the speed at maximum torque. Neglect stator impedance. Ans[2.61 , 235 r.p.m.]

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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