MGVCL Exam Paper (30-07-2021 Shift 1)
In a single phase energy meter, the series electromagnet is energized by a ___ of ___

voltage coil, thick wire of few turns
current coil, thin wire of more turns
voltage coil, thin wire of more turns
current coil, thick wire of few turns

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MGVCL Exam Paper (30-07-2021 Shift 1)
Insulation Power Factor testing on an oil-filled transformer is not helpful in determining ___

Turns ratio values
Movement of the windings (change in capacitance)
Condition of paper insulation (change in watts losses)
Whether the oil test indicates moisture

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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

C
D
B
A

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