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An isolator is installed
always independent of the position of circuit breaker
to operate the relay of circuit breaker
generally on both sides of a circuit breaker
as a substitute for circuit breaker
always independent of the position of circuit breaker
to operate the relay of circuit breaker
generally on both sides of a circuit breaker
as a substitute for circuit breaker
Answer
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A short-circuit is identified by
no current flow
heavy current flow
voltage rise
voltage drop
no current flow
heavy current flow
voltage rise
voltage drop
Answer
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When a fault occur in a power system, the circuit breaker
is opened manually
opens automatically
None of these
is opened by remote control
is opened manually
opens automatically
None of these
is opened by remote control
Answer
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In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as
operation time
clearing time
lead time
lag time
operation time
clearing time
lead time
lag time
Answer
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A.C. network analyzer is used to solve problems of
Load flow
Load flow and stability
Load flow, short-circuit and stability
Load flow and short-circuit
Load flow
Load flow and stability
Load flow, short-circuit and stability
Load flow and short-circuit
Answer
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The fuse rating is expressed in terms of
current
voltage
kVA
VAR
current
voltage
kVA
VAR
Answer
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