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A shunt DC motor rated at 240 V, 1800 RPM, 100 Amperes armature current. The armature of the motor is RA = 0.2 £2, and the field resistance RF = 160 2. The adjustable resistance Radj is currently set at 800 2. Armature Reaction is ignored. The magnetization curve at 1800 RPM is given in a tabular form below. If, A EA,V 0 0.1 0.25 0.52 0.8 1.0 10 50 100 160 235 260 RPM 1.2 1.5 1.75 2.00 275 290 295 300 What is the speed of rotation if the motor is operating at its rated voltage and current ? Answer The speed of the shaft is:

A shunt DC motor rated at 240 V, 1800 RPM, 100 Amperes armature current. The armature of the motor is RA = 0.2 £2, and the field resistance RF = 160 2. The adjustable resistance Radj is currently set at 800 2. Armature Reaction is ignored. The magnetization curve at 1800 RPM is given in a tabular form below. If, A EA,V 0 0.1 0.25 0.52 0.8 1.0 10 50 100 160 235 260 RPM 1.2 1.5 1.75 2.00 275 290 295 300 What is the speed of rotation if the motor is operating at its rated voltage and current ? Answer The speed of the shaft is:

Introductory Circuit Analysis (13th Edition)
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 shunt DC motor rated at 240 V, 1800 RPM, 100 Amperes armature current. The armature of the motor is RA = 0.2 2, and the field resistance RF = 160 2. The adjustable resistance Radj is currently set at 800 2. Armature Reaction is ignored. The magnetization curve at 1800 RPM is given in a tabular form below. If, A EA,V 0 0.1 0.25 0.52 0.8 1.0 1.2 1.5 1.75 2.00 10 50 100 160 235 260 275 290 295 300 What is the speed of rotation if the motor is operating at its rated voltage and current ? Answer The speed of the shaft is: RPM
Transcribed Image Text:A shunt DC motor rated at 240 V, 1800 RPM, 100 Amperes armature current. The armature of the motor is RA = 0.2 2, and the field resistance RF = 160 2. The adjustable resistance Radj is currently set at 800 2. Armature Reaction is ignored. The magnetization curve at 1800 RPM is given in a tabular form below. If, A EA,V 0 0.1 0.25 0.52 0.8 1.0 1.2 1.5 1.75 2.00 10 50 100 160 235 260 275 290 295 300 What is the speed of rotation if the motor is operating at its rated voltage and current ? Answer The speed of the shaft is: RPM
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