CB used for over current protection of thyristor operates when the fault current is__________?
Correct answer: A. of long period
- A. of long period
- B. of short duration
- C. both (A) and (B)
- D. neither (A) nor (B)
Explanation
A circuit breaker is relatively slow and is intended to clear sustained or long-duration overcurrent faults. Very short-duration thyristor faults are generally handled by fast-acting fuses or current-limiting devices.
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