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The magnetization curve for a separately excited DC generator is shown in Figure 2. The generator is rated at 6 kW, 120 V, 50 A, and 1800 r/min. Its field circuit is rated at 5A. The machine has the following data: RA = 0.18 2 NF = N turns RF = 24 2 %3D !! Radj = 0 – 30 Q VF =x V %3D 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 ok 2. Shunt field current, A 1000 2000 3000 4000 5000 6000 7000 Field mmf. A turns Teminal and generated voltage, V

The magnetization curve for a separately excited DC generator is shown in Figure 2. The generator is rated at 6 kW, 120 V, 50 A, and 1800 r/min. Its field circuit is rated at 5A. The machine has the following data: RA = 0.18 2 NF = N turns RF = 24 2 %3D !! Radj = 0 – 30 Q VF =x V %3D 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 ok 2. Shunt field current, A 1000 2000 3000 4000 5000 6000 7000 Field mmf. A turns Teminal and generated voltage, 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
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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The magnetization curve for a separately excited DC generator is shown in Figure 2. The generator is rated at 6 kW, 120 V, 50 A, and 1800 r/min. Its field circuit is rated at 5A. The machine has the following data: RA = 0.18 2 NF = N turns RF = 24 2 %3D Radj = 0 – 30 2 VF =x V 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 Shunt field current, A 1000 2000 3000 4000 5000 6000 7000 Field mmf. A tums Figure 2 Teminal and generated voltage, V
Transcribed Image Text:The magnetization curve for a separately excited DC generator is shown in Figure 2. The generator is rated at 6 kW, 120 V, 50 A, and 1800 r/min. Its field circuit is rated at 5A. The machine has the following data: RA = 0.18 2 NF = N turns RF = 24 2 %3D Radj = 0 – 30 2 VF =x V 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 Shunt field current, A 1000 2000 3000 4000 5000 6000 7000 Field mmf. A tums Figure 2 Teminal and generated voltage, V
Assuming the generator is operating at no-load condition at 1800 rpm i. Determine the possible no-load generated voltage range. ii. If Radj is set at 15 Q, calculate the generated voltage. iii. Continuing part (ii), if a 20A load is then connected and the speed of the generator is not changed, predict what will happen to the generated voltage. Justify your answer. X = 114 N = 900
Transcribed Image Text:Assuming the generator is operating at no-load condition at 1800 rpm i. Determine the possible no-load generated voltage range. ii. If Radj is set at 15 Q, calculate the generated voltage. iii. Continuing part (ii), if a 20A load is then connected and the speed of the generator is not changed, predict what will happen to the generated voltage. Justify your answer. X = 114 N = 900
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