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GATE 2020 || Power Systems || Quiz 3

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Question 1

Equation e^x – 1 = 0 is required to be solved using Newton’s method with an initial guess x₀ = –1. Then, after one step of Newton’s method, estimate x₁ of the solution will be given by

Question 2

A 400 V , 50 Hz, three phase balanced source supplies power to a star connected load whose rating is

, 0.8 pf(lag), The rating (in KVAR) of the delta connected (capacitive) reactive power bank necessary to bring the pf to unity is

Question 3

For the Y-bus matrix of a 4-bus system given in per unit, the buses having shunt elements are

Question 4

A power system network having 200 buses out of which there are 15 fixed shunt capacitor buses and 30 generator buses then the size of the Jacobian matrix is –

Question 5

For a 4-bus power system, the bus admittance matrix is given as,

Determine the impedance of the line between bus 2 and the ground.

Question 6

A power system having 100 buses in which 20 are voltage controlled buses and 10 are generator buses. For the load flow study find the size of jacobian matrix –

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ESE & GATE EE Power Systems

Jun 20ESE & GATE EE