Given a Y-connected 12 MVA synchronous generator rated at 15 kV. The armature resistance is 0.08 2 per phase. The data below regarding this generator were gathered. | (A) Open-circuit voltage (kV) line-to-line Air Gap Line voltage (kV) line-to-line Short-circuit current (A) 312 52 4.7 104 156 12,2 208 260 15.5 364 16.6 9.4 14.4 20 15.8 500 a. Determine the unsaturated value of the synchronous reactance b. Determine the saturated value of the synchronous reactance. If the synchronous generator is connected to the grid and the rated MVA is C. delivered at 0.85 lagging power factor, determine the internally generated electromotive force (E,).

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.3MCQ: The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of...
icon
Related questions
Question
Given a Y-connected 12 MVA synchronous generator rated at 15 kV. The armature
resistance is 0.08 2 per phase. The data below regarding this generator were gathered.
I (A)
Open-circuit voltage (kV) line-to-line
Air Gap Line voltage (kV) line-to-line
Short-circuit current (A)
52
4.7
208
260
15.5
312
15.8
104
156
364
9.4
12.2
14.4
20
16,6
500
a.
Determine the unsaturated value of the synchronous reactance
b. Determine the saturated value of the synchronous reactance.
с.
If the synchronous generator is connected to the grid and the rated MVA is
delivered at 0.85 lagging power factor, determine the internally generated
electromotive force (E,).
Transcribed Image Text:Given a Y-connected 12 MVA synchronous generator rated at 15 kV. The armature resistance is 0.08 2 per phase. The data below regarding this generator were gathered. I (A) Open-circuit voltage (kV) line-to-line Air Gap Line voltage (kV) line-to-line Short-circuit current (A) 52 4.7 208 260 15.5 312 15.8 104 156 364 9.4 12.2 14.4 20 16,6 500 a. Determine the unsaturated value of the synchronous reactance b. Determine the saturated value of the synchronous reactance. с. If the synchronous generator is connected to the grid and the rated MVA is delivered at 0.85 lagging power factor, determine the internally generated electromotive force (E,).
Expert Solution
steps

Step by step

Solved in 5 steps with 2 images

Blurred answer
Knowledge Booster
Compensation Techniques in Transmission Line
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Power System Analysis and Design (MindTap Course …
Power System Analysis and Design (MindTap Course …
Electrical Engineering
ISBN:
9781305632134
Author:
J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:
Cengage Learning