5-98 F60 Feeder Protection System GE Multilin5.4 SYSTEM SETUP 5 SETTINGS5g) FREQUENCY TRIGGERINGPATH: SETTINGS SYSTEM SETUP PHASOR MEASUREMENT... PMU 1 TRIGGERING PMU 1 FREQUENCY TRIGGERThe trigger responds to the frequency signal of the phasor measurement unit (PMU) source. The frequency is calculatedfrom either phase voltages, auxiliary voltage, phase currents and ground current, in this hierarchy, depending on the sourceconfiguration as per F60 standards. This element requires the frequency is above the minimum measurable value. If thefrequency is below this value, such as when the circuit is de-energized, the trigger will drop out.• PMU 1 FREQ TRIGGER LOW-FREQ: This setting specifies the low threshold for the abnormal frequency trigger. Thecomparator applies a 0.03 Hz hysteresis.• PMU 1 FREQ TRIGGER HIGH-FREQ: This setting specifies the high threshold for the abnormal frequency trigger. Thecomparator applies a 0.03 Hz hysteresis.• PMU 1 FREQ TRIGGER PKP TIME: This setting could be used to filter out spurious conditions and avoid unnecessarytriggering of the recorder.• PMU 1 FREQ TRIGGER DPO TIME: This setting could 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 5–36: FREQUENCY TRIGGER SCHEME LOGIC PMU 1 FREQUENCY TRIGGERPMU 1 FREQ TRIGGERFUNCTION: DisabledRange: Enabled, DisabledMESSAGE PMU 1 FREQ TRIGGERLOW-FREQ: 49.00 HzRange: 20.00 to 70.00 Hz in steps of 0.01MESSAGE PMU 1 FREQ TRIGGERHIGH-FREQ: 61.00 HzRange: 20.00 to 70.00 Hz in steps of 0.01MESSAGE PMU 1 FREQ TRIGGERPKP TIME: 0.10 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 FREQ TRIGGERDPO TIME: 1.00 sRange: 0.00 to 600.00 s in steps of 0.01MESSAGE PMU 1 FREQ TRIG BLK:OffRange: FlexLogic™ operandMESSAGE PMU 1 FREQ TRIGGERTARGET: Self-ResetRange: Self-Reset, Latched, DisabledMESSAGE PMU 1 FREQ 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:tPKPtDPOFLEXLOGIC 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 frame847002A2.CDR
