MGVCL Exam Paper (30-07-2021 Shift 2)
What is the full form of the acronym 'AIDS' in diseases?

Amino Intersect Deficiency Syndrome
Assert in Dander Syndrome
Acquired Immune Deficiency Syndrome
Acquire in Deficiency Syndrome

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

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.3 p.u. and j0.2 p.u. respectively. The generator no load voltage is 1.1 p.u. and that of infinite bus is 1.0 p.u. The inertia constant of the generator is 4 MW-sec/MVA. Determine the frequency of natural oscillations if the generator is loaded to 60% of its maximum power transfer capacity and small perturbation in power is given.

1.52 Hz
1.32 Hz
1.42 Hz
1.62 Hz

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