Q1:- A shunt D.C motor with applied voltage 230 V takes an armature current of 15 A with armature resistance is 0.5 2 field resistance 230 2. 1- Find the resistance required in series with armature circuit to reduced the speed to 70% when the load torque (armature torque ) is proportional to square of speed Assume the flux is constant. 2- Find the resistance required in series with shunt winding to rise the speed of motor by 5 % from normal speed when taking armature current 20 A Assume the flux is proportional to field current

Q1:- A shunt D.C motor with applied voltage 230 V takes an armature current of 15 A with armature resistance is 0.5 2 field resistance 230 2. 1- Find the resistance required in series with armature circuit to reduced the speed to 70% when the load torque (armature torque ) is proportional to square of speed Assume the flux is constant. 2- Find the resistance required in series with shunt winding to rise the speed of motor by 5 % from normal speed when taking armature current 20 A Assume the flux is proportional to field current

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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