CHAPTER 4: SETPOINTS FLEXLOGIC889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–377Non-Volatile Latch 1 to 16 NV Latch 1 ONNV Latch 1 OFFAny PKPAny OPAny TripAny AlarmNV Latch 2 to 16The output of non-volatile latch 1 is OnThe output of non-volatile latch 1 is OffAny enabled protection or control element pickupAny enabled protection or control element operatedAny operated element with Function selected as “Trip”Any operated element with Function selected as “Alarm”The same set of operands as per Non-Volatile Latch 1Offline Overcurrent Offline OC PKPOffline OC PKP AOffline OC PKP BOffline OC PKP COffline OC OPOffline OC OP AOffline OC OP BOffline OC OP COffline overcurrent element pickup.Offline overcurrent element Ph A pickup.Offline overcurrent element Ph B pickup.Offline overcurrent element Ph C pickup.Offline overcurrent element operate.Offline overcurrent element Ph A operate.Offline overcurrent element Ph B operate.Offline overcurrent element Ph C operate.Out of Step OOS OPOOS Lft Bld PKPOOS Rgt Bld PKPOOS Timer PKPOut-of-step tripping element operatedPositive-sequence impedance in mho and left blinder characteristicPositive-sequence impedance in mho and right blinder characteristicOut-of-step timer picked upOutput Relays Trip ONClose ONAux Relay [X] ONBKR [X] Manual OpenBKR [X] Manual CloseTrip command to Relay 1 (TRIP) has been issuedClose command to Relay 2 (CLOSE) has been issuedCommand to Aux Relay [X] has been issuedEither Local (using PBs) Open or Remote Open command has been issuedto the output relay selected under BKR[X] Trip Relay Select setpointEither Local (using PBs) Close or Remote Close command has been issuedto the output relay selected under BKR[X] Close Relay Select setpointOverFrequency Overfreq 1 PKPOverfreq 1 OPOverfreq 2Overfrequency 1 has picked upOverfrequency 1 has operatedThe same set of operands as per Overfreq 1Overall PercentDifferentialOvrl Percent Diff PKP AOvrl Percent Diff PKP BOvrl Percent Diff PKP COvrl Percent Diff PKPOvrl Percent Diff OP AOvrl Percent Diff OP BOvrl Percent Diff OP COvrl Percent Diff OPOvrl Percent Diff WarnOvrl Percent Diff BlockedOvrl Percent Diff Sat AOvrl Percent Diff Sat BOvrl Percent Diff Sat COvrl Percent Diff SatOvrl Percent Diff Dir AOvrl Percent Diff Dir BOvrl Percent Diff Dir COvrl Percent Diff Dir2nd Harm Diff A2nd Harm Diff B2nd Harm Diff C5th Harm Diff A5th Harm Diff B5th Harm Diff CPercent A differential has picked upPercent B differential has picked upPercent C differential has picked upAt least one Percent differential element has picked upPhase A differential has operatedPhase B differential has operatedPhase C differential has operatedAt least one Percent differential element has operatedPercent differential current exceeded 0.5 x PKP for 10 secondsPercent differential protection has been blockedPercent differential flag triggered on phase APercent differential flag triggered on phase BPercent differential flag triggered on phase CPercent differential flag triggeredPercent differential directional flag triggered on phase APercent differential directional flag triggered on phase BPercent differential directional flag triggered on phase CPercent differential directional flag triggered2 nd harmonic Phase A diff. current block detected2 nd harmonic Phase B diff. current block detected2 nd harmonic Phase C diff. current block detected5 th harmonic Phase A diff. current block detected5 th harmonic Phase B diff. current block detected5 th harmonic Phase C diff. current block detectedOverload Alarm Overload Alarm PKPOverload Alarm OPOverload alarm has picked up.Overload alarm has operated.ELEMENT OPERANDS EVENT DESCRIPTION
