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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
The line current in a three phase unbalanced load are Ir= 4+j6, Ib= 2-j2 and Ic= -3+j2, then zero sequence component of current will be

1 + j2
3 + j6
9 + j10
3 - j6

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GETCO Exam Paper (22-07-2015)
To find the most accurate values of resistance and inductance of the transmission line

Pi configuration is used
Distributed parameter configuration used
T configuration is used
End condenser configuration is used

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GETCO Exam Paper (22-07-2015)
For selecting low voltage cable which of the following factors is not important?

permissible voltage drop
voltage grade
short circuit current rating
current carrying capacity

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GETCO Exam Paper (22-07-2015)
The PU impedance of a 1089 MVA, 33 kV generator is 1, the ohmic value of its impedance is:

10
1
0.5
100

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GETCO Exam Paper (22-07-2015)
The relay which is most sensitive to power swings (mal operation) is

Reactance Relay
Over current Relay
Impedance Relay
Mho Relay

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GETCO Exam Paper (22-07-2015)
The Y bus matrix is a sparse matrix because …

bus incidence matrix is a sparse matrix
lines are connected to less no. of buses
no of lines are less
Y primitive is a sparse matrix

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MORE MCQ ON GETCO Exam Paper (22-07-2015)

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