MGVCL Exam Paper (30-07-2021 Shift 1)
What are the states of the three ideal diodes of the circuit shown in figure ?

D1 OFF, D2 ON, D3 ON
D1 ON, D2 OFF, D3 OFF
D1 ON, D2 OFF, D3 ON
D1 OFF, D2 ON, D3 OFF

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MGVCL Exam Paper (30-07-2021 Shift 1)
The single line diagram of the simple system is shown in figure the corresponding reactance diagram is

B
C
A
D

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MGVCL Exam Paper (30-07-2021 Shift 1)
The normal percentage bias setting of differential relay used for transformer protection will be

below 10%
between 50% and 75%
between 10% and 50%
above 75%

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MGVCL Exam Paper (30-07-2021 Shift 1)
Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 15 Ω and the resistance of the resistor connected to the sound core was 45 Ω. Calculate the distance of the fault point from the test end.

75 m
150 m
450 m
225 m

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