With which of the following, a circuit breaker must be equipped for remote operation ?
Correct answer: C. Shunt trip
- A. Inverse time trip
- B. Time-delay trip
- C. Shunt trip
- D. None of the above
- E. All of the above
Explanation
A shunt trip releases a circuit breaker when an external control voltage is applied, allowing it to be operated remotely. Inverse-time and time-delay trips respond to fault current conditions rather than remote commands.
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