In a circuit breaker the basic problem is to
A) maintain the arc
B) extinguish the arc
C) transmit large power
D) emit the ionizing electrons
Correct Answer:
Verified
Q2: Large internal faults are protected by
A)merz price
Q3: When a transmission line is energized, the
Q4: Protective relays are devices that detect abnormal
Q5: The voltage appearing across the contacts after
Q6: Ionization in circuit breaker is facilitated by
A)high
Q8: Overheating of relay contacts or contact born
Q9: Interruption of large currents by relay requires
A)arc
Q10: Shunt capacitance is neglected while considering
A)short transmission
Q11: The arc voltage produced in A.C. circuit
Q12: The time of closing the cycle, in
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