GE Multilin L90 Line Current Differential System 5-1135 SETTINGS 5.4 SYSTEM SETUP5• PMU 1 POWER TRIGGER APPARENT: This setting specifies the pickup threshold for the apparent power of thesource. For single-phase power, 1 pu is a product of 1 pu voltage and 1 pu current, or the product of nominal second-ary voltage, the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a sin-gle-phase power. The comparator applies a 3% hysteresis.• PMU 1 POWER TRIGGER PKP TIME: This setting could be used to filter out spurious conditions and avoid unneces-sary triggering of the recorder.• PMU 1 POWER TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned tonormal. This setting is of particular importance when using the recorder in the forced mode (recording as long as thetriggering condition is asserted).Figure 5–45: POWER TRIGGER SCHEME LOGIC847003A1.CDRSETTINGSPMU 1 POWERTRIGGER FUNCTION:Enabled = 1PMU 1 PWR TRIG BLK:Off = 0ANDSETTINGSPMU 1 POWER TRIGGER ACTIVE:RUNSETTINGSPMU 1 POWER TRIGGER PKP TIME:PMU 1 POWER TRIGGER DPO TIME:tPKPtDPOFLEXLOGIC OPERANDPMU 1 POWER TRIGGERFLEXLOGIC OPERANDSPMU 1 FREQ TRIGGERPMU 1 VOLT TRIGGERPMU 1 CURR TRIGGERPMU 1 ROCOF TRIGGERSETTINGPMU 1 USER TRIGGER:Off = 0OR FLEXLOGIC OPERANDPMU 1 TRIGGEREDabs(P) > ACTIVE PICKUPabs(P) > ACTIVE PICKUPabs(P) > ACTIVE PICKUPORabs(P) > 3*(ACTIVE PICKUP)abs(Q) > REACTIVE PICKUPabs(Q) > REACTIVE PICKUPabs(Q) > REACTIVE PICKUPabs(Q) > 3*(REACTIVE PICKUP)S > APPARENT PICKUPS > APPARENT PICKUPS > APPARENT PICKUPS > 3*(APPARENT PICKUP)SETTINGSPMU 1 SIGNAL SOURCE:ACTIVE POWER, PAACTIVE POWER, PBACTIVE POWER, PC3P ACTIVE POWER, PREACTIVE POWER, QAREACTIVE POWER, QBREACTIVE POWER, QC3P REACTIVE POWER, QAPPARENT POWER, SAAPPARENT POWER, SBAPPARENT POWER, SC3P APPARENT POWER, SPMU 1 POWER TRIGGER REACTIVE:PMU 1 POWER TRIGGER APPARENT:to STAT bits ofthe data frame
