5-170 D30 Line Distance Relay GE Multilin5.6 CONTROL ELEMENTS 5 SETTINGS5The feature is programmed to perform fault duration calculations. Fault duration is defined as a time between operation ofthe disturbance detector occurring before initiation of this feature, and reset of an internal low-set overcurrent function. Cor-rection is implemented to account for a non-zero reset time of the overcurrent function.Breaker arcing currents and fault duration values are available under the ACTUAL VALUES ÖØ RECORDS ÖØ MAINTE-NANCE Ö BREAKER 1(2) menus.• BKR 1(2) ARC AMP INT-A(C): Select the same output operands that are configured to operate the output relays usedto trip the breaker. In three-pole tripping applications, the same operand should be configured to initiate arcing currentcalculations for poles A, B and C of the breaker. In single-pole tripping applications, per-pole tripping operands shouldbe configured to initiate the calculations for the poles that are actually tripped.• BKR 1(2) ARC AMP DELAY: This setting is used to program the delay interval between the time the tripping sequenceis initiated and the time the breaker contacts are expected to part, starting the integration of the measured current.• BKR 1(2) ARC AMP LIMIT: Selects the threshold value above which the output operand is set.Figure 5–97: ARCING CURRENT MEASUREMENTFigure 5–98: BREAKER ARCING CURRENT SCHEME LOGICInitiateBreakerContactsPartArcExtinguished100 msProgrammableStart DelayStartIntegration StopIntegrationTotal Area =BreakerArcingCurrent(kA·cycle)SETTINGSETTINGSETTINGSSETTINGCOMMANDACTUAL VALUEFLEXLOGIC OPERANDSSETTINGBREAKER 1 ARCINGAMP FUNCTION:BREAKER 1 ARCINGAMP BLOCK:BREAKER 1 ARCINGAMP INIT-A:BREAKER 1 ARCINGAMP INIT-B:BREAKER 1 ARCINGAMP INIT-C:BREAKER 1 ARCINGAMP LIMIT:CLEAR BREAKER 1ARCING AMPS: BKR 1 ARCING AMP AΦBKR 1 OPERATING TIME AΦBKR 1 OPERATING TIME BΦBKR 1 OPERATING TIME CΦBKR 1 OPERATING TIMEBKR 1 ARCING AMP BΦBKR 1 ARCING AMP CΦBKR1 ARC OPBKR1 ARC DPOBREAKER 1 ARCINGAMP SOURCE:IAIBICOff=0Off=0Off=0Off=0NO=0YES=1Enabled=1Disabled=0ANDANDANDANDANDOROR827071A3.CDRKA Cycle Limit2*SETTINGBREAKER 1 ARCINGAMP DELAY: 100 ms0 0Set All To ZeroAdd toAccumulatorIntegrateIntegrateIntegrateSelectHighestValueRUNRUNRUNIB -CycleIA -CycleIC -Cycle222
