MGVCL Exam Paper (30-07-2021 Shift 2)
In a short circuit test on circuit breaker, time to reach the peak re-striking voltage is 50 µs with the peak restriking voltage of 100 kV. Determine average RRRV (Rate of rise re-striking voltage)?

4 x 10⁶ kV/sec
1 x 10⁶ kV/sec
2 x 10⁶ kV/sec
3 x 10⁶ kV/sec

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
Thermocouples can be connected in series/parallel to obtain greater sensitivity called as

Thermopile
None of these
Thermistor
Thermometer

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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
limit the main CT secondary current
match the standard ratio of CTs used on both sides of the transformer winding

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of these is not a monitoring and diagnostic test for transformer oil?

Dissolved Metals Analysis
Furanic Compound Analysis
Volatility Level Analysis
Dissolved Gas Analysis

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP
MORE MCQ ON MGVCL Exam Paper (30-07-2021 Shift 2)