Time Left - 15:00 mins
GATE 2019: Power System Test 3
Attempt now to get your rank among 918 students!
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
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.
![](https://gradeup-question-images.grdp.co/liveData/PROJ459/1473935394974654.png)
![](https://gradeup-question-images.grdp.co/liveData/PROJ459/1473935394974654.png)
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
![](https://gs-question-images.grdp.co/1456223917639411.jpg)
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 Z22, new and Z23,new of the bus impedance matrix of the modified network are respectively.
![](https://gs-question-images.grdp.co/145915854727457.jpg)
A branch having an impedance of j0.2W is connected between bus 2 and the reference. Then the values of Z22, new and Z23,new of the bus impedance matrix of the modified network are respectively.
Question 6
The YBUS matrix for the power network given below is
The relevant pu line admittances are indicated on the diagram
![](https://gradeup-question-images.grdp.co/liveData/PROJ632/1475649151992947.png)
The relevant pu line admittances are indicated on the diagram
- 918 attempts
- 7 upvotes
- 12 comments
Jun 21ESE & GATE EE