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

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
In circuit breaker, the term MCCB stands for

modern closed circuit breaker
moulded case circuit breaker
miniature case circuit breaker
miniature compact circuit breaker

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MGVCL Exam Paper (30-07-2021 Shift 2)
The miniature circuit breaker (MCB) with Class D trip characteristics trips instantaneously when the current flowing through it reaches ____ the rated current.

between 10 to 20 times
between 5 to 10 times
between 2 to 3 times
between 3 to 5 times

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MGVCL Exam Paper (30-07-2021 Shift 2)
According to Global Wind Energy Council in 2016, India ranked____ in the Global Wind Power Installed Capacity Index with cumulative installed wind power generation.

First
Third
Second
Fourth

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MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____

Age of the insulation
Aging by-products
Moisture in the windings
Movement / damage to internal components

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