MGVCL Exam Paper (30-07-2021 Shift 3)
A 1000 kVA ONAN cooled transformer has a load of 500 kVA throughout the day except for a period of 2 hours. What is the permissible overload for a duration of two hours. Assume the permissible load kVA as a fraction of rated kVA is 1.43.

1430 kVA
700 kVA
1050 kVA
715 kVA

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

None of these
Reverse power protection
Differential protection
Time graded protection

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MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

Short circuits
All of these
Winding damage
Core movement

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