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(a) Describe two main differences between a DC shunt-wound and separately-excited motor.

(a) Describe two main differences between a DC shunt-wound and separately-excited motor.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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(a) Describe two main differences between a DC shunt-wound and separately-excited motor.
Transcribed Image Text:(a) Describe two main differences between a DC shunt-wound and separately-excited motor.
A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 Q and a field resistance of 100 Q. The adjustable resistor, Rsdj can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuit diagram, and Figure 2 illustrates its magnetisation curve. R. Rali Re EA Figure 1: Equivalents circuit of a dc motor 300 280 260 Speed = 1500 rpm 240 220 200 180 160 140 120 100 so 60 40 20 o 01 02 03 04 05 06 0.7 08 09 1 11 12 1.3 14 1.5 1.6 1.7 1.8 19 2 Figure 2: Magnetization curve of a de motor.
Transcribed Image Text:A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 Q and a field resistance of 100 Q. The adjustable resistor, Rsdj can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuit diagram, and Figure 2 illustrates its magnetisation curve. R. Rali Re EA Figure 1: Equivalents circuit of a dc motor 300 280 260 Speed = 1500 rpm 240 220 200 180 160 140 120 100 so 60 40 20 o 01 02 03 04 05 06 0.7 08 09 1 11 12 1.3 14 1.5 1.6 1.7 1.8 19 2 Figure 2: Magnetization curve of a de motor.
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