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A fuse performs
None of these
both detection and interruption functions
circuit interruption function only
detection function only
None of these
both detection and interruption functions
circuit interruption function only
detection function only
Answer
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Related Question
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An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is
25 A
3.125 A
6.25 A
12.5 A
25 A
3.125 A
6.25 A
12.5 A
Answer
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The information to the circuit breaker under fault conditions is provided by
relay
H.R.'only
rewirable fuse
All of these
relay
H.R.'only
rewirable fuse
All of these
Answer
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For interrupting of high voltage and low current, the circuit breaker prefered is
oil circuit breaker
air-blast circuit breaker
vaccum circuit breaker
all are correct
oil circuit breaker
air-blast circuit breaker
vaccum circuit breaker
all are correct
Answer
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The voltage appearing across the contacts after opening of the circuit breaker is called
recovery voltage
operating voltage
arc voltage
surge voltage
recovery voltage
operating voltage
arc voltage
surge voltage
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An isolator is designed to open a circuit under
full load
normal conditions
no load
None of these
full load
normal conditions
no load
None of these
Answer
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