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)
In underground cables, the electrostatic stress is ___ at contactor surface and ___ at the sheath.

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

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MGVCL Exam Paper (30-07-2021 Shift 1)
Match the following

A = (iii), B = (ii), C = (i)
A = (ii), B = (i), C = (iii)
A = (ii), B = (iii), C = (i)
A = (iii), B = (i), C = (ii)

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MGVCL Exam Paper (30-07-2021 Shift 1)
While selecting the gas for a circuit breaker, the property of gas that should be considered is its
(i) dielectric strength
(ii) non-inflammability
(iii) non-toxicity

(i) and (ii) only
(i) and (iii) only
(i), (ii) and (iii)
(i) only

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