MGVCL Exam Paper (30-07-2021 Shift 2)
The operating time of an inverse definite minimum time (IDMT) overcurrent relay is ____ proportional to the plug-setting multiplier (PSM) and____proportional to the time-multiplier setting (TMS).

directly, inversely
directly, directly
inversely, directly
inversely, inversely

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MGVCL Exam Paper (30-07-2021 Shift 2)
If no load is connected to solar PV system,

it will start reflecting the light
it will stop absorbing light
its voltage will go on increasing till its breakdown
it will dissipate energy in the panel and increase its temperature

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MGVCL Exam Paper (30-07-2021 Shift 2)
Interposing current-transformer (CT) is used in differential protection of a transformer to

match the standard ratio of CTs used on both sides of the transformer winding
increase the sensitivity of the relay
minimize the effect of saturation of the main CTs
limit the main CT secondary current

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