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
Chapter39: Synchronous Motor Operation
Section: Chapter Questions
Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...
Related questions
Question
Please answer all 3 parts. Thank you
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
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
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 4 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you