A separately excited DC motor is rotated at 1000rpm, the variation of armature terminal voltage as a function of field current is measured under no-load conditions and tabulated below: IF 0.0 0.1 0.2 0.3 0.40.5 0.6 0.7 0.8 VT 0 30 60 85 102 115 124 130 134 | 60 The field winding supply VF = 24V and the field resistance is adjustable. The armature winding resistance RA=0.20 and the armature terminal voltage VT=130V a) Calculate the field current if the motor is operated with no-load at 1000 rpm b) The motor drives a load at 1200 rpm. Calculate the armature voltage at 1200 rpm if the field resistance RF=600 c) Calculate the torque for the above condition

A separately excited DC motor is rotated at 1000rpm, the variation of armature terminal voltage as a function of field current is measured under no-load conditions and tabulated below: IF 0.0 0.1 0.2 0.3 0.40.5 0.6 0.7 0.8 VT 0 30 60 85 102 115 124 130 134 | 60 The field winding supply VF = 24V and the field resistance is adjustable. The armature winding resistance RA=0.20 and the armature terminal voltage VT=130V a) Calculate the field current if the motor is operated with no-load at 1000 rpm b) The motor drives a load at 1200 rpm. Calculate the armature voltage at 1200 rpm if the field resistance RF=600 c) Calculate the torque for the above condition

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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