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A switchgear is device used for
switching and controlling an electrical circuit
switching, controlling and protecting the electrical circuit and equipment
interrupting an electrical circuit
switching an electrical circuit 111
switching and controlling an electrical circuit
switching, controlling and protecting the electrical circuit and equipment
interrupting an electrical circuit
switching an electrical circuit 111
Answer
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Related Question
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When transmission line is energized, the wave that propagates on it is
voltage wave only
current wave only
power factor wave only
both current wave and voltage wave
voltage wave only
current wave only
power factor wave only
both current wave and voltage wave
Answer
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The arcing contacts in a circuit breaker are made of
porcelain
electrolytic copper
aluminium alloy
copper tungsten alloy
porcelain
electrolytic copper
aluminium alloy
copper tungsten alloy
Answer
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Outdoor switchgear is generally used for voltage beyond
11 kV
66 kV
33 kV
132 kV
11 kV
66 kV
33 kV
132 kV
Answer
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A differential relay measures the vector difference between
None of these
two or more similar electrical quantities
two voltages
two currents
None of these
two or more similar electrical quantities
two voltages
two currents
Answer
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Interruption of large currents by relay requires
arc suppressing blow out coils
all of these
high speed opening of contacts
wide separation of the opened contacts
arc suppressing blow out coils
all of these
high speed opening of contacts
wide separation of the opened contacts
Answer
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