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

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

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

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MGVCL Exam Paper (30-07-2021 Shift 2)
The expression for voltage regulation of a short transmission line for leading power factor is given by: ____, where, 'I' is the line current, 'V_r' is the receiving end voltage, 'R' is the line resitance and 'X' is the line reactance.

(IRcosφ_r - IXsinφ_r)/V_r
(IRcosφ_r + IXsinφ_r)/V_r
(IXcosφ_r + IRsinφ_r)/V_r
(IXcosφ_r - IRsinφ_r)/V_r

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