Which of the following is NOT an advantage of air blast circuit breakers?
A. This type of circuit breaker is almost maintenance free.
B. High speed operation is achieved.
C. The stability of the system can be well maintained.
D. There is no possibility of air leakages at the pipe fittings.
Answer:D
Which of the following is NOT an advantage of air blast circuit breakers?
A. This type of circuit breaker is almost maintenance free. B. High speed operation is achieved. C. The stability of the system can be well maintained. D. There is no possibility of air leakages at the pipe fittings.