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GATE 2023 Power Systems Quiz 47

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Question 1

In a 4 bus system the total self admittance of bus 1 is Y11=-j12 pu. A transmission line having a series reactance of j0.2 pu and shunt susceptance of j0.4 pu is connected between 1 and 4.the value of Y11 modified is ___?

Question 2

“BUS TYPE SWITCHING”, this term is connected with_____and it happens when the limits of______is violated then it changes into_______.
Choose the correct answer using the options.

Question 3

A power system network consist of 300 buses in which 50 are reactive power support buses, 30 are the generator buses and remaining all are load buses. The size of the Jacobian matrix____?

Question 4Multiple Correct Options

Consider the following statements. Which of these statement is/are correct?

Question 5

A 3-bus power system network has bus admittance matrix as

If a transmission line is added in parallel to already existing line between 2 and 3 having. Find the Y22 of modified Ybus matrix?

Question 6

A power system consisting of 120 buses out of which 20 buses are generator bus , 10 buses are one with reactive power support. All other buses are load buses. In the load flow analysis using Newton raphson method the size of sub matrices N and M are
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