1. A 3-phase induction motor at standstill has a rotor voltage of 120 V between the slip rings on open-circuit. The rotor winding is star-connected and has reactance of 12 per phase at standstill and aresistance of 0-2 2 per phase. Find the rotor current per phase and power factor at start.[13-6 A; 0-98 lag]theslip2. A 3-phase induction motor with a star-connected rotor has an induced e.m.f. of 80 V betweenrings at standstill on open-circuit. The resistance and standstill reactance of the rotor are 0-35 2 and114 A;02:32 per phase respectively. Calculate the rotor current per phase and the power factor at start0-71 lag]with anexternal resistance of 22 per phase.

1) Here external resistance is not given so I can not do it further . However the procedure is same…

1. A 3-phase induction motor at standstill has a circuit. The rotor winding is star-connected resistance of 0-2 92 per phase. Find the rotor cu 2. A 3-phase induction motor with a star-connect rings at standstill on open-circuit. The resistan 2-32 per phase respectively. Calculate the rote external resistance of 2 2 per phase.

1. A 3-phase induction motor at standstill has a circuit. The rotor winding is star-connected resistance of 0-2 92 per phase. Find the rotor cu 2. A 3-phase induction motor with a star-connect rings at standstill on open-circuit. The resistan 2-32 per phase respectively. Calculate the rote external resistance of 2 2 per phase.

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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