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Q4. Figure Q4. shows a power system with one generator, two transformers, a line and a load. Zload=0.3+j0.102 G Vgen-415/0°V R = 0.02 2 tot ZLine=1+j0.10 600 kVA 0.415/11 kV Y-Y XT1=6% tot 500 kVA 11/0.415 kV Y-Y XT2=5% Figure Q4. A Simple Power System b) What are the main advantages and disadvantages of using per-unit analysis? c) If a 4 p.u lightning induced overvoltage strikes the line section of the system shown in Figure Q4, calculate the actual overvoltage in the generator, line and load sections (assuming no attenuation of the lightning transient).

Q4. Figure Q4. shows a power system with one generator, two transformers, a line and a load. Zload=0.3+j0.102 G Vgen-415/0°V R = 0.02 2 tot ZLine=1+j0.10 600 kVA 0.415/11 kV Y-Y XT1=6% tot 500 kVA 11/0.415 kV Y-Y XT2=5% Figure Q4. A Simple Power System b) What are the main advantages and disadvantages of using per-unit analysis? c) If a 4 p.u lightning induced overvoltage strikes the line section of the system shown in Figure Q4, calculate the actual overvoltage in the generator, line and load sections (assuming no attenuation of the lightning transient).

Power System Analysis and Design (MindTap Course List)
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
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.8MCQ: An ac resistance is higher than a dc resistance. True False
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Q4. Figure Q4. shows a power system with one generator, two transformers, a line and a load. Zload=0.3+j0.102 G Vgen-415/0°V R = 0.02 2 tot ZLine=1+j0.10 600 kVA 0.415/11 kV Y-Y XT1=6% tot 500 kVA 11/0.415 kV Y-Y XT2=5% Figure Q4. A Simple Power System
Transcribed Image Text:Q4. Figure Q4. shows a power system with one generator, two transformers, a line and a load. Zload=0.3+j0.102 G Vgen-415/0°V R = 0.02 2 tot ZLine=1+j0.10 600 kVA 0.415/11 kV Y-Y XT1=6% tot 500 kVA 11/0.415 kV Y-Y XT2=5% Figure Q4. A Simple Power System
b) What are the main advantages and disadvantages of using per-unit analysis? c) If a 4 p.u lightning induced overvoltage strikes the line section of the system shown in Figure Q4, calculate the actual overvoltage in the generator, line and load sections (assuming no attenuation of the lightning transient).
Transcribed Image Text:b) What are the main advantages and disadvantages of using per-unit analysis? c) If a 4 p.u lightning induced overvoltage strikes the line section of the system shown in Figure Q4, calculate the actual overvoltage in the generator, line and load sections (assuming no attenuation of the lightning transient).
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