Q1: The speed of an 8 kW, 220V, 1250 rpm separately-excited d.c. motor is controlled by a single-phase full converter. The rated armature current is 30 A. The armature resistance is Ra = 0.25 Q and %3D armature inductance is La = 15 mH. The a.c. supply voltage is 300 V. The motor voltage constant is Ke p = 0.20 V/rpm. Assume that motor current is continuous and ripple free. For firing angle a = 60° and rated %3D motor current, determine: (a) Speed of the motor, (b) Motor torque, and (c) The input power to the motor.

Q1: The speed of an 8 kW, 220V, 1250 rpm separately-excited d.c. motor is controlled by a single-phase full converter. The rated armature current is 30 A. The armature resistance is Ra = 0.25 Q and %3D armature inductance is La = 15 mH. The a.c. supply voltage is 300 V. The motor voltage constant is Ke p = 0.20 V/rpm. Assume that motor current is continuous and ripple free. For firing angle a = 60° and rated %3D motor current, determine: (a) Speed of the motor, (b) Motor torque, and (c) The input power to the motor.

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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