The principle of harmonic detection in relays with the Harmonics Restraint function is
A. used to prevent the relay trip when there are faults occurring outside the protection zone.
B. used to prevent the relay of the relay in Abnormal Conditions but not in the protection zone.
C. use to prevent the order of the relay in the overlap of other defensive zones so that the relays in that protective zone first
D. Use to order a circuit breaker when the relay detects the number of harmonics beyond the set value.
Show Answer
Answer: B
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