The information to the circuit breaker under fault conditions is provided by____________?
Correct answer: A. relay
- A. relay
- B. rewirable fuse
- C. H.R.C. only
- D. all of the above
Explanation
During a fault, the relay detects the abnormal condition and sends a trip signal to the circuit-breaker. A fuse interrupts current directly and does not normally provide a separate information or trip signal to the breaker.
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