MGVCL Exam Paper (30-07-2021 Shift 3)
The most commonly used method for the protection of three phase feeder is

Time graded protection
None of these
Differential protection
Reverse power protection

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MGVCL Exam Paper (30-07-2021 Shift 3)
A delta-connected balanced three-phase load is supplied from a three phase, 400 V supply. The line current is 20 Aand the power taken by the load is 10 kW. Find the power consumed if the same load is connected in star.

21.77 W
3.33 W
30 W
16.33 W

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

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

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MGVCL Exam Paper (30-07-2021 Shift 3)
કામકાજમાં ધ્યાન કન્દ્રિત કરજો'.
આ આજ્ઞાર્થ વાક્યની સંભાવનાર્થ વાક્યરચના કઈ હોઈ શકે?

કામકાજમાં ધ્યાન કેન્દ્રિત કરી લીધું છે.
હવે તો તમે કામકાજમાં ધ્યાન કેન્દ્રિત કરો.
હવે તો કામકાજમાં ધ્યાન કેન્દ્રિત કરશો ને?
કામકાજમાં ધ્યાન કેન્દ્રિત નથી કરવું?

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which of the following statements are correct?
(i) Advanced metering infrastructure (AMI) is typically more automated and allows real- time, on-demand interrogations with metering endpoints.
(ii) An Automated Meter Reading (AMR) device only communicates from the customer to the energy supplier.
(iii) AMR meters only provide kWh information and possible peak kW demand for the month.

(i) and (iii) only
(i), (ii) and (iii)
(i) and (ii) only
(ii) and (iii) only

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