MGVCL Exam Paper (30-07-2021 Shift 1)
Which of the following are the advantages of Aerial Bunched Cables (ABC)?

Higher safety and reliability
All of these
Reduced height of supports
Elimination of theft of energy

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

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

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MGVCL Exam Paper (30-07-2021 Shift 1)
Determine the ohmic value of the current limiting reactor per phase external to a 30 MVA, 11 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 5 times the full load current. The reactance of the synchronous generator is 0.05 pu.

0.405 Ω
0.805 Ω
0.605 Ω
0.305 Ω

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MGVCL Exam Paper (30-07-2021 Shift 1)
___ is the rms value of the total current comprising the AC and DC components of the current in the circuit breaker pole at the instant of contact separation.

Symmetrical short circuit current
Symmetrical breaking current
Making current
Asymmetrical breaking current

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