MGVCL Exam Paper (30-07-2021 Shift 1)
Stability of power system can be improved by
1. Reducing voltage of transmission
2. Using parallel transmission lines
3. Using series compensators
Which of the above statements are correct?

1 and 2 only
All 1, 2 and 3
2 and 3 only
1 and 3 only

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MGVCL Exam Paper (30-07-2021 Shift 1)
A 16 A, Type B Miniature Circuit Breaker (MCB) will disconnect a fault in 0.1s when the fault current is

greater than 32 A
less than 16 A
less than 16 A
between 48 A and 80 A

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MGVCL Exam Paper (30-07-2021 Shift 1)
Determine the ohmic value of the current limiting reactor per phase external to a 30 MVA, 11 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 5 times the full load current. The reactance of the synchronous generator is 0.05 pu.

0.405 Ω
0.305 Ω
0.605 Ω
0.805 Ω

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MGVCL Exam Paper (30-07-2021 Shift 1)
Match the following

A = (iii), B = (i), C = (ii)
A = (ii), B = (iii), C = (i)
A = (iii), B = (ii), C = (i)
A = (ii), B = (i), C = (iii)

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