GE Multilin F60 Feeder Protection System 5-1355 SETTINGS 5.4 SYSTEM SETUP5The trigger responds to the frequency signal of the phasor measurement unit (PMU) source. The frequency is calculatedfrom among phase voltages, auxiliary voltage, phase currents and ground current, in this hierarchy, depending on thesource configuration as per F60 standards. This element requires that the frequency be above the minimum measurablevalue. If the frequency is below this value, such as when the circuit is de-energized, the trigger drops out.• PMU 1 FREQ TRIGGER LOW-FREQ: This setting specifies the low threshold for the abnormal frequency trigger. Thecomparator applies a 0.02 Hz hysteresis.• PMU 1 FREQ TRIGGER HIGH-FREQ: This setting specifies the high threshold for the abnormal frequency trigger. Thecomparator applies a 0.02 Hz hysteresis.• PMU 1 FREQ TRIGGER PKP TIME: This setting can be used to filter out spurious conditions and avoid unnecessarytriggering of the recorder.• PMU 1 FREQ 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 5–48: FREQUENCY TRIGGER SCHEME LOGICg) VOLTAGE TRIGGERINGPATH: SETTINGS SYSTEM SETUP PHASOR MEASUREMENT... PMU 1 TRIGGERING PMU 1 VOLTAGE TRIGGER PMU 1 VOLTAGE TRIGGERPMU 1 VOLT TRIGGERFUNCTION: DisabledRange: Enabled, DisabledMESSAGE PMU 1 VOLT TRIGGERLOW-VOLT: 0.800 puRange: 0.250 to 1.250 pu in steps of 0.001MESSAGE PMU 1 VOLT TRIGGERHIGH-VOLT: 1.200 puRange: 0.750 to 1.750 pu in steps of 0.001MESSAGE PMU 1 VOLT TRIGGERPKP TIME: 0.10 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 VOLT TRIGGERDPO TIME: 1.00 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 VOLT TRIG BLK:OffRange: FlexLogic operandMESSAGE PMU 1 VOLT TRIGGERTARGET: Self-ResetRange: Self-Reset, Latched, DisabledMESSAGE PMU 1 VOLT TRIGGEREVENTS: DisabledRange: Enabled, DisabledSETTINGSPMU 1 FREQ TRIGGERFUNCTION:Enabled = 1PMU 1 FREQ TRIG BLK:Off = 0SETTINGPMU 1 SIGNALSOURCE:FREQUENCY, fANDSETTINGSPMU 1 FREQ TRIGGER LOW-FREQ:PMU 1 FREQ TRIGGER HIGH-FREQ:0< f < LOW-FREQORf > HIGH-FREQRUNSETTINGSPMU 1 FREQ TRIGGER PKP TIME: PMU 1 FREQ TRIGGER DPO TIME:tDPOFLEXLOGIC OPERANDPMU 1 FREQ TRIGGERFLEXLOGIC OPERANDSPMU 1 VOLT TRIGGERPMU 1 CURR TRIGGERPMU 1 POWER TRIGGERPMU 1 ROCOF TRIGGERSETTINGPMU 1 USER TRIGGER:Off = 0OR FLEXLOGIC OPERANDPMU 1 TRIGGEREDto STAT bits ofthe data frame847008A1.CDRSETTINGSPKPt 00
