MGVCL Exam Paper (30-07-2021 Shift 1)
Consider the following statements and choose the correct option:
Statement 1: The magnitude of earth fault current for a given fault position within a winding depends upon the method of neutral grounding.
Statement 2: Earth fault protection for an electric motor is provided by means of instantaneous overcurrent relay.

Both Statement 1 and Statement 2 are FALSE
Statement 1 is FALSE and Statement 2 is TRUE
Statement 1 is TRUE and Statement 2 is FALSE
Both Statement 1 and Statement 2 are TRUE

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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
Asymmetrical breaking current
Making current

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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

D
C
A
B

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MGVCL Exam Paper (30-07-2021 Shift 1)
In underground cables, the electrostatic stress is ___ at contactor surface and ___ at the sheath.

zero, minimum
minimum, maximum
minimum, maximum
zero, zero

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