GE B30 Instruction Manual page 451

CHAPTER 5: SETTINGS CONTROL ELEMENTS
— This setting is used to program the delay interval between the time the tripping sequence is
BKR 1 ARC AMP DELAY
initiated and the time the breaker contacts are expected to part, starting the integration of the measured current.
— Selects the threshold value above which the output operand is set.
BKR 1 ARC AMP LIMIT
2 2
— Selects a FLexLogic Operand to clear the accumulated I t values (kA -cycle), reset fault duration
BKR 1 CLR ARC AMPS
2
items (breaker operating time), clear ARCING AMPS (kA -cycle) and AMP MAX (kA) values of the last event.
— This setting specifies the maximum symmetrical interruption rating of the circuit breaker.
BKR 1 INTERUPTION RATING
Figure 5-130: Arcing current measurement
5
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-243