CHAPTER 5: SETTINGS CONTROL ELEMENTSL60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-3015Breaker arcing currents and fault duration values are available under the ACTUAL VALUES RECORDS MAINTENANCE BREAKER 1(2) menus.BKR 1 ARC AMP INT-A(C) — Select the same output operands that are configured to operate the output relays used to trip thebreaker. In three-pole tripping applications, configure the same operand to initiate arcing current calculations for poles A,B, and C of the breaker. In single-pole tripping applications, configure per-pole tripping operands to initiate the calculationsfor the poles that are actually tripped.BKR 1 ARC AMP DELAY — This setting is used to program the delay interval between the time the tripping sequence isinitiated and the time the breaker contacts are expected to part, starting the integration of the measured current.BKR 1 ARC AMP LIMIT — Selects the threshold value above which the output operand is set.BKR 1 CLR ARC AMPS — Selects a FLexLogic Operand to clear the accumulated I2 t values (kA 2 -cycle), reset fault durationitems (breaker operating time), clear ARCING AMPS (kA2 -cycle) and AMP MAX (kA) values of the last event.BKR 1 INTERUPTION RATING — This setting specifies the maximum symmetrical interruption rating of the circuit breaker.Figure 5-172: Arcing current measurement
