MGVCL Exam Paper (30-07-2021 Shift 2)
A 1000 kVA ONAN cooled transformer has a load of 500 kVA throughout the day except for a period of 4 hours. What is the permissible overload for a duration of four hours. Assume the permissible load kVA as a fraction of rated kVA is 1.24.

620 kVA
1240 kVA
930 kVA
2480 kVA

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

substation reactive power control
All of these
feeder remote point voltage control
automatic reclosing

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a typical DC micro grid, hybrid storage system is a combination of

Lead acid battery and Lithium ion battery
None of these
Lead acid battery and ultra capacitor / super capacitor
Lead acid battery and Capacitor

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MGVCL Exam Paper (30-07-2021 Shift 2)
The magnitude of the generator earth-fault current is limited by

inserting the stabilizing resistance in series with the relay
inserting suitable resistance in neutral grounding circuit
controlling field exciter
using higher rating CTs

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