MGVCL Exam Paper (30-07-2021 Shift 1)
The current flowing to a balanced delta connected load through line 'a' is 15 A when the conductor of line 'b' is open. With the current in line 'a' as reference, compute the symmetrical components of the line currents. Assume the phase sequence of 'abc'.

Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (-7.5 - j4.33) A
Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (7.5 - j 4.33) A
Ia₀ = 0 AIa₁ = (-7.5 - j13) AIa₂ = (-7.5 - j4.33) A
Ia₀ = 0 AIa₁ = (7.5 - j13) AIa₂ = (7.5 + j13) A

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MGVCL Exam Paper (30-07-2021 Shift 1)
What is the largest thermal power plant in India?

Talcher Super Thermal Power Station
Sasan Ultra Mega Power Plant
Vindhyachal Thermal Power Station
Mundra Thermal Power Station

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MGVCL Exam Paper (30-07-2021 Shift 1)
For protection of inter-turn fault in transformer, the relays preferred are

Overcurrent relay and differential relay
Overcurrent relay and Buchholz's relay
Buchholz's relay and differential relay
Buchholz's relay, overcurrent relay and differential relay

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