Q7/ A separately excited DC motor has the following parameters: Ra = 0.32, Ke 0.52 V/rpm.Wb, o (flux per pole) = 150 mWb. The motor speed is controlled by a full wave bridge rectifier. The firing angle a is set at 30°, and the average speed is 1500 rpm. The applied a.c. voltage to the bridge is 440 V at 60 Hz. Assuming the motor current is continuous; calculate the armature current drawn by the motor and the steady-state torque for the cases of: (a) half-wave converter (b) Fully- controlled bridge

Q7/ A separately excited DC motor has the following parameters: Ra = 0.32, Ke 0.52 V/rpm.Wb, o (flux per pole) = 150 mWb. The motor speed is controlled by a full wave bridge rectifier. The firing angle a is set at 30°, and the average speed is 1500 rpm. The applied a.c. voltage to the bridge is 440 V at 60 Hz. Assuming the motor current is continuous; calculate the armature current drawn by the motor and the steady-state torque for the cases of: (a) half-wave converter (b) Fully- controlled bridge

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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Power Electronics
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