Many applications require several steps using different current start levels and timedelays. EFxPTOC consists of three different protection stages.• Low EFLPTOC• High EFHPTOC• Instantaneous EFIPTOCEFLPTOC contains several types of time-delay characteristics. EFHPTOC andEFIPTOC are used for fast clearance of serious earth faults.4.2.1.8 SignalsTable 268:EFLPTOC Input signalsName Type Default DescriptionIo SIGNAL 0 Residual currentBLOCK BOOLEAN 0=False Block signal for activating the blocking modeENA_MULT BOOLEAN 0=False Enable signal for current multiplierTable 269:EFHPTOC Input signalsName Type Default DescriptionIo SIGNAL 0 Residual currentBLOCK BOOLEAN 0=False Block signal for activating the blocking modeENA_MULT BOOLEAN 0=False Enable signal for current multiplierTable 270:EFIPTOC Input signalsName Type Default DescriptionIo SIGNAL 0 Residual currentBLOCK BOOLEAN 0=False Block signal for activating the blocking modeENA_MULT BOOLEAN 0=False Enable signal for current multiplierTable 271:EFLPTOC Output signalsName Type DescriptionOPERATE BOOLEAN OperateSTART BOOLEAN StartTable 272:EFHPTOC Output signalsName Type DescriptionOPERATE BOOLEAN OperateSTART BOOLEAN StartSection 4 1YHT530004D05 DProtection functions268 615 seriesTechnical Manual
