MGVCL Exam Paper (30-07-2021 Shift 1)
At what range of wind speed is the electricity from the wind turbine is generated?

250 – 450 mph
450 – 650 mph
30-35 mph
100 – 125 mph

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MGVCL Exam Paper (30-07-2021 Shift 1)
The single line diagram of the simple system is shown in figure the corresponding reactance diagram is

C
B
A
D

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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.

0.805 Ω
0.405 Ω
0.305 Ω
0.605 Ω

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MGVCL Exam Paper (30-07-2021 Shift 1)
Consider the following statements and choose the correct option:
Statement 1: The magnitude of earth fault current for a given fault position within a winding depends upon the method of neutral grounding.
Statement 2: Earth fault protection for an electric motor is provided by means of instantaneous overcurrent relay.

Statement 1 is TRUE and Statement 2 is FALSE
Both Statement 1 and Statement 2 are TRUE
Statement 1 is FALSE and Statement 2 is TRUE
Both Statement 1 and Statement 2 are FALSE

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