5-136 F60 Feeder Protection System GE Multilin5.4 SYSTEM SETUP 5 SETTINGS5This element responds to abnormal voltage. Separate thresholds are provided for low and high voltage. In terms of signal-ing its operation, the element does not differentiate between the undervoltage and overvoltage events. The triggerresponds to the phase voltage signal of the phasor measurement unit (PMU) source. All voltage channels (A, B, and C orAB, BC, and CA) are processed independently and can trigger the recorder. A minimum voltage supervision of 0.1 pu isimplemented to prevent pickup on a de-energized circuit, similarly to the undervoltage protection element.• PMU 1 VOLT TRIGGER LOW-VOLT: This setting specifies the low threshold for the abnormal voltage trigger, in per-unit of the PMU source. 1 pu is a nominal voltage value defined as the nominal secondary voltage times VT ratio. Thecomparator applies a 1% hysteresis.• PMU 1 VOLT TRIGGER HIGH-VOLT: This setting specifies the high threshold for the abnormal voltage trigger, in per-unit of the PMU source. 1 pu is a nominal voltage value defined as the nominal secondary voltage times VT ratio. Thecomparator applies a 1% hysteresis.• PMU 1 VOLT TRIGGER PKP TIME: This setting can bused to filter out spurious conditions and avoid unnecessarytriggering of the recorder.• PMU 1 VOLT TRIGGER DPO TIME: This setting can be used to extend the trigger after the situation returned to nor-mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig-gering condition is asserted).Figure 5–49: VOLTAGE TRIGGER SCHEME LOGICh) CURRENT TRIGGERINGPATH: SETTINGS SYSTEM SETUP PHASOR MEASUREMENT... PMU 1 TRIGGERING PMU 1 CURRENT TRIGGERThis element responds to elevated current. The trigger responds to the phase current signal of the phasor measurementunit (PMU) source. All current channel (A, B, and C) are processed independently and could trigger the recorder. PMU 1 CURRENT TRIGGERPMU 1 CURR TRIGGERFUNCTION: DisabledRange: Enabled, DisabledMESSAGE PMU 1 CURR TRIGGERPICKUP: 1.800 puRange: 0.100 to 30.000 pu in steps of 0.001MESSAGE PMU 1 CURR TRIGGERPKP TIME: 0.10 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 CURR TRIGGERDPO TIME: 1.00 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 CURR TRIG BLK:OffRange: FlexLogic operandMESSAGE PMU 1 CURR TRIGGERTARGET: Self-ResetRange: Self-Reset, Latched, DisabledMESSAGE PMU 1 CURR TRIGGEREVENTS: DisabledRange: Enabled, Disabled847009A1.CDRSETTINGSPMU 1 VOLT TRIGGERFUNCTION:Enabled = 1PMU 1 VOLT TRIG BLK:Off = 0SETTINGSPMU 1 SIGNALSOURCE:ANDSETTINGSPMU 1 VOLT TRIGGER LOW-VOLT:PMU 1 VOLT TRIGGER HIGH-VOLT:RUNSETTINGSPMU 1 VOLT TRIGGER DPO TIME:tDPOFLEXLOGIC OPERANDPMU 1 VOLT TRIGGERFLEXLOGIC OPERANDSPMU 1 FREQ TRIGGERPMU 1 CURR TRIGGERPMU 1 POWER TRIGGERPMU 1 ROCOF TRIGGERSETTINGPMU 1 USER TRIGGER:Off = 0OR FLEXLOGIC OPERANDPMU 1 TRIGGEREDVT CONNECTION:WYE DELTAVA VABVB VBCVC VCA(0.1pu < V < LOW-VOLT) OR(V > HIGH-VOLT)(0.1pu < V < LOW-VOLT) OR(V > HIGH-VOLT)(0.1pu < V < LOW-VOLT) OR(V > HIGH-VOLT)to STAT bits ofthe data framePMU 1 FREQ TRIGGER PKP TIME:SETTINGSPKPt0OR0
