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

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MGVCL Exam Paper (30-07-2021 Shift 3)
____ is the rms value of AC component of the current in the pole at the instant of contact separation.

Symmetrical breaking current
Making current
Asymmetrical breaking current
Symmetrical short circuit current

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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.

3.33 W
21.77 W
30 W
16.33 W

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MGVCL Exam Paper (30-07-2021 Shift 3)
Consider the following statements associated with Buchholz’s relays.
Statement 1: Buchholz's relay is used for protection of a transformer against incipient faults.
Statement 2: Buchholz's relay can be installed on oil cooled transformers.

Statement 1 is TRUE and Statement 2 is FALSE
Both Statement 1 and Statement 2 are FALSE
Statement 1 is FALSE and Statement 2 is TRUE
Both Statement 1 and Statement 2 are TRUE

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