Which of the following circuit breakers has high reliability and minimum maintenance ?
A) Air blast circuit breakers
B) Circuit breaker with SF6 gas
C) Vacuum circuit breakers
D) Oil circuit breakers
Correct Answer:
Verified
Q15: A _ is used to measure the
Q16: The relay with inverse time characteristic will
Q17: The single phasing relays are used for
Q18: Which of the following devices will receive
Q19: Which of the following parameter can be
Q20: Series reactors should have
A)low resistance
B)high resistance
C)low impedance
D)high
Q22: Arc in a circuit breaker is interrupted
Q23: transmission line has reflection coefficient as one.
A)Open
Q24: What will be the reflection co-efficient of
Q25: The inverse definite mean time relays are
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