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Q2) Figure 2 shows fixed field voltage VF of 240 V and armature voltage VA that can be varied from 120 V to 240 V. What is the no-load speed of this separately-excited DC motor when Radj= 150 2 and (a) VA = 120 V (b) VA = 180 V (c) VA = 240 V RA 0.19 A Radi V= 240 V Ry=90 n V- 120 to 240 Figure 2: The Equivalent Circuit of the Separately Excited Motor in the Question 2 320 300 Speed = 1200 t/min 280 260 240 220 * 200 I80 60 140 120 100 80 60 40 2아. 01 02 03 04 05 06 0.7 08 09 10 LI 12 13 L4 Shunt field current, A Figure 3: The Magnetization Curve for the Separately Excited Motor in the Question 2 Internal generated voltage E. V

Q2) Figure 2 shows fixed field voltage VF of 240 V and armature voltage VA that can be varied from 120 V to 240 V. What is the no-load speed of this separately-excited DC motor when Radj= 150 2 and (a) VA = 120 V (b) VA = 180 V (c) VA = 240 V RA 0.19 A Radi V= 240 V Ry=90 n V- 120 to 240 Figure 2: The Equivalent Circuit of the Separately Excited Motor in the Question 2 320 300 Speed = 1200 t/min 280 260 240 220 * 200 I80 60 140 120 100 80 60 40 2아. 01 02 03 04 05 06 0.7 08 09 10 LI 12 13 L4 Shunt field current, A Figure 3: The Magnetization Curve for the Separately Excited Motor in the Question 2 Internal generated voltage E. V

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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Q2) Figure 2 shows fixed field voltage VF of 240 V and armature voltage VA that can be varied from 120 V to 240 V. What is the no-load speed of this separately-excited DC motor when Radj= 150 2 and (a) VA = 120 V (b) VA = 180 V (c) VA = 240 V RA 0.19 N Radi V= 240 V Rp=90 n V- 120 to 240 Figure 2: The Equivalent Circuit of the Separately Excited Motor in the Question 2 320 300 Speed = 1200 s/min 280 260 240 220 * 200 I80 160 140 120 100 80 60 40 2아. 01 02 03 04 05 06 0.7 08 09 10 LI 12 13 L4 Shunt field current. A Figure 3: The Magnetization Curve for the Separately Excited Motor in the Question 2
Transcribed Image Text:Q2) Figure 2 shows fixed field voltage VF of 240 V and armature voltage VA that can be varied from 120 V to 240 V. What is the no-load speed of this separately-excited DC motor when Radj= 150 2 and (a) VA = 120 V (b) VA = 180 V (c) VA = 240 V RA 0.19 N Radi V= 240 V Rp=90 n V- 120 to 240 Figure 2: The Equivalent Circuit of the Separately Excited Motor in the Question 2 320 300 Speed = 1200 s/min 280 260 240 220 * 200 I80 160 140 120 100 80 60 40 2아. 01 02 03 04 05 06 0.7 08 09 10 LI 12 13 L4 Shunt field current. A Figure 3: The Magnetization Curve for the Separately Excited Motor in the Question 2
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