MGVCL Exam Paper (30-07-2021 Shift 1)
A grid interactive solar system:

always receives power from the grid
supplies power to as well as receives power from the grid as required
always supplies power to the grid
works only when the grid fails

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MGVCL Exam Paper (30-07-2021 Shift 1)
As per ___ guidelines, if the ratio of carbon dioxide (CO₂) and carbon monoxide (CO) in dissolved gas analysis is ___, it is predicted that the condition of paper insulation inside the transformer is poor.

IEC-599, more than 11
IEC-899, less than 11
IEC-599, less than 11
IEC-899, more than 11

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MGVCL Exam Paper (30-07-2021 Shift 1)
An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are

0 V, 10 V
10 V, 15 V
15 V, 10 V
0 V, 15 V

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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

A
C
B
D

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MGVCL Exam Paper (30-07-2021 Shift 1)
Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer?

star-star
delta-delta
delta-star
star-delta

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