A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 N and a field resistance of 1002. The adjustable resistor, Rag can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuitdiagram, and Figure 2 illustrates its magnetisation curve.RAFigure 1: Equivalents circuit of a de motor300280260Speed = 1500 rpm240220200I8016014012010080604020O 01 02 03 04 0s 06 07 08 09I LI 12 13 14 15 16 17 18 19 2Figure 2: Magnetization curve of a dc moto(d) Calculate the full-load speed (rpm) if the rated line current, I = 50 A.

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A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 Q and a field resistance of 100 2. The adjustable resistor, R.g can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuit diagram, and Figure 2 illustrates its magnetisation curve. Figure 1: Equivalents circuit of a de motor 300 280 260 Speed = 1500 rpm 200 220 200 180 160 140 120 100 60 40 20 o 01 02 03 04 0s 06 07 0s 09 1 LI 12 13 14 15 16 17 18 19 2 Figure 2: Magnetization curve of a dc motor. (d) Calculate the full-load speed (rpm) if the rated line current, I = 50 A.

A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 Q and a field resistance of 100 2. The adjustable resistor, R.g can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuit diagram, and Figure 2 illustrates its magnetisation curve. Figure 1: Equivalents circuit of a de motor 300 280 260 Speed = 1500 rpm 200 220 200 180 160 140 120 100 60 40 20 o 01 02 03 04 0s 06 07 0s 09 1 LI 12 13 14 15 16 17 18 19 2 Figure 2: Magnetization curve of a dc motor. (d) Calculate the full-load speed (rpm) if the rated line current, I = 50 A.

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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