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Per Unit System Part - 1 GATE 2024 Fundamental Quiz
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Question 1
If the capacity of an alternator is increases by 4 times and voltage is halved then what will per unit reactance of an alternator –
Question 2
A 80 MVA, 11 KV synchronous generator has an impedance of 8 Ω. Calculate the per unit impedance of generator, if the Machine rated at the base value of the system?
Question 3
A short transmission line is operated at a 0.8 P.f Lagging. The per unit impedance is given as is 0.02 p.u calculate the impedance angle of the transmission when the voltage regulation of transmission Line is 16%
Question 4
Which of the following is per unit reactance diagram for the system shown below.
Question 5
What is the per unit reactance on alternator if the capacity of alternator is tripled and voltage is halved?
Question 6
A 250 MVA, 11 kV synchronous generator has an impedance of 1.8 p.u. What will be the per unit impedance at 400 MVA and 10 kV ?
Question 7Multiple Correct Options
A 100 MVA, 230/100 kV power transformer has per unit impedance 0.4 p. u on low voltage side. Which of the following is/are true?
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Jan 27ESE & GATE EE
