A shunt DC motor is rated at 100 hp at a speed of 1800 rpm. This motor has an efficiency of 97% under rated conditions. The total resistance of the fleld circuit (Radj+Rf) is set to 400 ohm. Armature resistance of the motor is 0.08 ohm. The relationship between armature voltage and field current is assumed to be linear and given as Ea=200lf at a speed of 1800 rpm. Find the armature voltage of the motor under rated conditions by ignoring armature reaction (1hp = 746 W).

A shunt DC motor is rated at 100 hp at a speed of 1800 rpm. This motor has an efficiency of 97% under rated conditions. The total resistance of the fleld circuit (Radj+Rf) is set to 400 ohm. Armature resistance of the motor is 0.08 ohm. The relationship between armature voltage and field current is assumed to be linear and given as Ea=200lf at a speed of 1800 rpm. Find the armature voltage of the motor under rated conditions by ignoring armature reaction (1hp = 746 W).

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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