MGVCL Exam Paper (30-07-2021 Shift 2)
The single line diagram of the simple power system is shown in figure the corresponding reactance diagram is

D
A
C
B

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MGVCL Exam Paper (30-07-2021 Shift 2)
A given solar cell has the following specifications:
Open-circuit voltage, Voc: 0.7 V
Short-circuit current, Isc: 3 A
Voltage at maximum power, Vmp: 0.5 V
Current at maximum power, Imp : 2.65 A
Calculate the fill factor.

1.58
0.81
1.23
0.63

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MGVCL Exam Paper (30-07-2021 Shift 2)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series opposing.

932 mH
1270 mH
1135 mH
730 mH

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MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

using higher rating CTs
controlling field exciter
inserting suitable resistance in neutral grounding circuit
inserting the stabilizing resistance in series with the relay

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