
Power System lab viva
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Education
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University
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Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
What does the Y-bus matrix represent in power system analysis?
Back
Admittance matrix
2.
FLASHCARD QUESTION
Front
Which of the following statements is true about the Y-bus matrix? It is not always symmetric. It represents the total impedance of the power system. It is computed using Kirchhoff's voltage law (KVL) at each node. It contains both real and imaginary elements
Back
It contains both real and imaginary elements
3.
FLASHCARD QUESTION
Front
How is the Y-bus matrix affected when a new branch is added to the power system?
Back
Both diagonal and off-diagonal elements change.
4.
FLASHCARD QUESTION
Front
Which method is commonly used for Y-bus formation in power system analysis? Options: Admittance matrix method, Impedance matrix method, Nodal analysis method, Mesh analysis method
Back
Nodal analysis method
5.
FLASHCARD QUESTION
Front
What is the size of the Y-bus matrix for an N-bus power system?
Back
N x N
6.
FLASHCARD QUESTION
Front
the positive, negative and zero sequence reactance of an element of power system are 0.3, 0.3 and 0.8 respectively. Then the element would be
Back
transmission line
7.
FLASHCARD QUESTION
Front
The zero sequence fault currents are absent when the fault is: single line to ground, line to line, double line to ground, None
Back
line to line
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