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 the stabilizing resistance in series with the relay
inserting suitable resistance in neutral grounding circuit

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MGVCL Exam Paper (30-07-2021 Shift 2)
The voltage applied to a transformer primary is increased keeping V/f constant. With this, the core loss ____ and the magnetizing current (Im) ____

remains constant, decreases
increases, remains constant
increases, increases
decreases, increases

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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.

0.63
1.23
1.58
0.81

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a typical DC micro grid, hybrid storage system is a combination of

Lead acid battery and ultra capacitor / super capacitor
Lead acid battery and Capacitor
Lead acid battery and Lithium ion battery
None of these

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