A DC series motor operates at 800rpm with a line current of 100A from 230V mains supply. Its armature and field resistances are 0.15 ohms and 0.1 ohms respectively. Find the speed at which motor runs at a line current of 25A, assuming the flux at this current is 45% of the flux at 100A. 12. A DC series motor operates at 800rpm with a line current of 100A from 230V mainssupply. Its armature and field resistances are 0.152 and 0.12 respectively. Find theIIspeed at which motor runs at a line current of 25A, assuming the flux at this currentis 45% of the flux at 100A.

Note: Name of motor is not given so considering it DC series motor and then solving the question.

Answered: C series motor operates at 800rpm with…

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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A DC series motor operates at 800rpm with a line current of 100A from 230V mains supply. Its armature and field resistances are 0.15 ohms and 0.1 ohms respectively. Find the speed at which motor runs at a line current of 25A, assuming the flux at this current is 45% of the flux at 100A.

12. A DC series motor operates at 800rpm with a line current of 100A from 230V mains
supply. Its armature and field resistances are 0.152 and 0.12 respectively. Find the
II
speed at which motor runs at a line current of 25A, assuming the flux at this current
is 45% of the flux at 100A.

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