14. An 8 pole 50 Hz, three phase induction motor runs at a speed of 720 rpm when delivering full load torque. Its stand still rotor resistance and reactance are 0.1 ohm and 0.6 ohm per phase respectively. An additional resistance of 0.5 ohm per phase is inserted in the rotor circuit to control the speed. Calculate the speed at which the motor runs now with full load torque remaining the same. (Ans: 570 rpm)

14. An 8 pole 50 Hz, three phase induction motor runs at a speed of 720 rpm when delivering full load torque. Its stand still rotor resistance and reactance are 0.1 ohm and 0.6 ohm per phase respectively. An additional resistance of 0.5 ohm per phase is inserted in the rotor circuit to control the speed. Calculate the speed at which the motor runs now with full load torque remaining the same. (Ans: 570 rpm)

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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