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GATE 2023 Power Systems Quiz 41
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Question 1
For a lossless network the maximum power transfer capability can be increased by
1). Low GMD
2). High GMD
3). Low GMR
4). High GMR
1). Low GMD
2). High GMD
3). Low GMR
4). High GMR
Question 2
Consider a transmission line to be lossless. If You place Z Ωresistance at receiving end phase that makes sending and receiving end voltage magnitude same . let A and B parameters for the line are 0.9∠0° and 150∠90°Ω respectively. Then the value of Z is _______ Ω.
Question 3
Which of the following model of medium transmission line does not show Ferranti effect?
Question 4
In modeling the equivalent circuit of a short length overhead transmission line, the line resistance and inductance are only considered because line capacitance to ground is_________?
Question 5
For a short transmission line having line impedance Z = 40 + j30 Ω/km with receiving end current of 100 A and the voltage per phase of sending end is 132 kV. For receiving end voltage to be equal to sending end calculate the power factor of the load required.
Question 6
For a 500 Km long transmission line , the series impedance is (0.0 + 0.2 j) ohm/ km and the shunt admittance is (0.0 + 8 j ) μmho/ km. The magnitude of the series impedance (in ohm ) of the equivalent π circuit of the transmission line is _____?
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Jun 13ESE & GATE EE