The triggering of SCEFRFLO can also be inhibited during the autoreclosingsequence. This is achieved by connecting the signal ACTIVE from the autoreclosingfunction DARREC, which indicates that the autoreclosing sequence is in progress, tothe BLOCK input of SCEFRFLO. Blocking of the SCEFRFLO triggering is indicatedduring the autoreclosing sequence when the load compensation or steady-stateasymmetry elimination is based on the delta quantities. This applies to the short circuitfaults when Load Com PP loops is set to "Enabled" or, to earth faults, when EFalgorithm Sel is set to "Load compensation" or "Load modelling".5.7.8 SignalsTable 1050:SCEFRFLO Input signalsName Type Default DescriptionI3P SIGNAL - Three-phase currentsU3P SIGNAL - Three-phase voltagesURES SIGNAL - Residual voltageBLOCK BOOLEAN 0=False Signal for blocking the triggeringTRIGG_REC BOOLEAN 0=False Distance calculation triggering signalTRIGG_XC0F BOOLEAN 0=False XC0F calculation triggering signalTRIGG_T BOOLEAN 0=False Start calculation sequence for compensationnetworkTable 1051:SCEFRFLO Output signalsName Type DescriptionALARM BOOLEAN Fault location alarm signal5.7.9 SettingsTable 1052:SCEFRFLO Group settings (Basic)Parameter Values (Range) Unit Step Default DescriptionFlt Loc Det mode 2=Non-comp1=Comp, switchedR2=Non-comp Fault location detection modeZ Max phase load 1.0...10000.0 ohm 0.1 80.0 Impedance per phase of max. load,overcurr./under-imp., PSLPh leakage Ris 20...1000000 ohm 1 210000 Line PhE leakage resistance in primaryohmsPh capacitive React 10...1000000 ohm 1 7000 Line PhE capacitive reactance in primaryohmsR1 line section A 0.000...1000.000 ohm / pu 0.001 1.000 Positive sequence line resistance, linesection AX1 line section A 0.000...1000.000 ohm / pu 0.001 1.000 Positive sequence line reactance, linesection ATable continues on next pageSection 5 1MRS759142 CProtection related functions1120 REX640Technical Manual
