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Admittance relay is
None of these
directional relay
impedance relay
non-directional relay
None of these
directional relay
impedance relay
non-directional relay
Answer
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The fusing factor is
always 1
always more than 1
None of these
always less than 1
always 1
always more than 1
None of these
always less than 1
Answer
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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
12.5 A
25 A
3.125 A
6.25 A
12.5 A
25 A
3.125 A
6.25 A
Answer
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Directional relay are based on flow of
power
All of these
voltage wave
current
power
All of these
voltage wave
current
Answer
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The fault that imposes severest duty on the circuit breaker is
line to ground fault
all three lines short-circuited
line to line fault
two lines to ground fault
line to ground fault
all three lines short-circuited
line to line fault
two lines to ground fault
Answer
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Air blast circuit breaker is used for
repeated duty
short duty
intermittent duty
over currents
repeated duty
short duty
intermittent duty
over currents
Answer
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