1
GATE EE 2023
MCQ (More than One Correct Answer)
+1
-0

The bus admittance ($$Y_{bus}$$) matrix of a 3-bus power system is given below.

$$\quad\quad$$$$\matrix{ 1 & \quad\quad\quad2\quad\quad & 3 \cr } $$

$$\matrix{ 1 \cr 2 \cr 3 \cr } \left[ {\matrix{ { - j15} & {j10} & {j5} \cr {j10} & { - j13.5} & {j4} \cr {j5} & {j4} & { - j8} \cr } } \right]$$

Considering that there is no shunt inductor connected to any of the buses, which of the following can NOT be true?

A
Line charging capacitor of finite value is present in all three lines
B
Line charging capacitor of finite value is present in line 2-3 only
C
Line charging capacitor of finite value is present in line 2-3 only and shunt capacitor of finite value is present in bus 1 only
D
Line charging capacitor of finite value is present in line 2-3 only and shunt capacitor of finite value is present in bus 3 only
2
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
The p.u. parameters for a $$500$$ MVA machine on its own base are:
Inertia, M = $$20$$ p.u.; reactance X = $$2$$ p.u. The p.u. values of inertia and reactance on $$100$$ MVA common base, respectively are
A
$$4, 0.4$$
B
$$100, 10$$
C
$$4, 10$$
D
$$100,0.4$$
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