MGVCL Exam Paper (30-07-2021 Shift 3)
The DC offset in fault current causes conventional over-current (OC) relays to :

reach remains unaffected due to DC offset
under-reach
sometimes under-reach and sometimes over-reach
over-reach

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider a solar PV plant with the following specific conditions:
Analysis period: 1 year
Measured average solar irradiation intensity in 1 year: 150 kWh/m²
Generator area of the PV plant: 10 m² Efficiency factor of the PV modules: 15%
Electrical energy actually exported by plant to grid: 135 kWh
Calculate the performance ratio.

80%
60%
50%
75%

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which among these components connects to physical equipments of the distribution system?

Central control room with host computers
Communication infrastructure
Remote Terminal Unit
None of these

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