Marks 1
1
Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching
GATE EE 2006
2
The interrupting time of a circuit breaker is the period between the instant of
GATE EE 2003
3
Three sections of a feeder are provided with circuit breakers CB1, CB2, CB3, CB4, CB5 and CB6. For a fault F as indicated in figure.
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GATE EE 1999
4
The use of high-speed of circuit-breakers
GATE EE 1997
5
Resistance switching is normally employed in
GATE EE 1996
Marks 2
1
A three-phase, $$33$$ kV oil circuit breaker is rated $$1200$$ A, $$2000$$ MVA, $$3$$s. The symmetrical breaking current is
GATE EE 2010
2
Consider the protection system shown in the figure below. The circuit breakers numbered from $$1$$ to $$7$$ are of identical type. A single line to ground fault with zero fault impedance occurs at the midpoint of the line (at point F), but circuit breaker $$4$$ fails to operate (''Stuck breaker''). If the relays are coordinated correctly, a valid sequence of circuit breaker operation is
b
GATE EE 2007