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GATE 2019: Power System Test 3

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Question 1

Match List-i with List-ii
List-I, (Load flow method)
A- Guess-siedel load flow
B- Newton Raphson load flow
C- Fast decoupled load flow
D- Real time load flow
List-ii, (System environment)
1- Gauss elimination
2- I-V factors
3- Contingency studies
4- Offline solution

Question 2

A two-bus system has loss coefficient are given, which of the following condition will match for two bus system?

Question 3

For the Y-bus matrix given in per unit values, where the first, second, third and fourth row refers to bus 1, 2, 3 and 4 respectively, draw the reactance diagram.

Question 4

A three-bus network is shown in the figure below indicating the p.u. impedances of each element.

The Bus admittance matrix, Y-bus, of the network is

Question 5

The bus impedance matrix of a 4–bus power system is given by

A branch having an impedance of j0.2W is connected between bus 2 and the reference. Then the values of Z_{22, new} and Z_23,new of the bus impedance matrix of the modified network are respectively.

Question 6

The Y_BUS matrix for the power network given below is

The relevant pu line admittances are indicated on the diagram

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Tags :

ESE & GATE EE Power Systems

Jun 21ESE & GATE EE