Question

The time which elapses between the instant when the actuating quantity exceeds the pickup value and the instant when the relay contacts close is called:
1. breaker time 
2. reset time
3. operating time
4. present time

Answer 1

Correct Answer - Option 3 : operating time

• The operating time of a relay is the time that elapses between the instant when the actuating quantity exceeds the pickup value of the instant when the relay contract close.
• The breaker time of a relay is the time between termination of the fault and the final arc quenching in the circuit breaker.
• Reset time is the time that elapses between the instant when the actuating quantity becomes less than the reset value to the instant when the relay contact returns to its normal position.