GE GEK 106168E manual Events to Trigger Oscillography

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2. OPERATION LOGIC

The user can select from the following list which signals may trigger the oscillography:

Events to Trigger the

Oscillography

PICKUP

1ST STAGE TRIP

2ND STAGE TRIP

INTERNAL ARC

50BF A TRIP

50BF B TRIP

50BF C TRIP

50BF 3P TRIP

EXTERNAL TRIGGER

COMM. TRIGGER

HI-SET A PICKUP

HI-SET B PICKUP

HI-SET C PICKUP

50BF A INIT

50BF B INIT

50BF C INIT

LO-SET A PICKUP

LO-SET B PICKUP

LO-SET C PICKUP

3 POLE 50BF INIT

NEUTRAL PICKUP

ARC A PICKUP

ARC B PICKUP

ARC C PICKUP

The oscillography records are retrieved from the relay to the computer in COMTRADE international standard format using the GE_LOCAL communications program. To draw the waveforms, digital flags, phasors and post- fault analysis in general, it is suggested to use the GE_OSC oscillography program or any other that accepts COMTRADE international format (IEEE-C37.111-1991). It is also possible to import the waveforms with mathematical or spreadsheet programs (for example EXCELTM).

GEK-106168E

DBF Breaker Failure Protection

11

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Contents GE Power Management 3KRQHHVFULSWLRQ0DQXDO*RI.\RXUFRGHTXHVWLRQ Ruvxjjhvwlrqd Page Table of Contents Installation and Maintenance List of Figures Rear View 226B7412 SheetDBF Breaker Failure Protection GEK-106168E ∙ Breaker internal arc detection Monitoring General DescriptionProtection AnalysisDBF Breaker Failure Protection GEK-106168E Overcurrent Units Digital Signal Input # TerminalsProtection Functions Low-Level Overcurrent Breaker Failure Unit 50BF 1PBreaker Failure without current or very low current Reset of Latching RelaysGround Overcurrent Breaker Failure Unit Breaker Arc Detection DeviceMeasurement Internal Protection Status SignalsMonitoring and Recording Functions Associated Breaker StatusGroup Status Comment Optional Exp. Board Optional Exp. Board Latched#1 ClosedOptional Exp.Boar Latched#2 Closed Internal Communication Status Signals LED Left Column Right Column Circuit Breaker Breaking Capacity MonitoringEvent Recorder Analysis FunctionsBUILT-IN SELF-CHECKING Unit OscillographyEvents to Trigger Oscillography Table Selection Active Table Tables of SettingsControl INPUT-1 INPUT-0Configurable Inputs and Outputs Time SynchronizationFunction Outputs MAN-MACHINE Interface HMI Remote Communications Breaker Setting Group Active table setting groupInternal Arc Settings Common to all tables Range Default Step Oscillography MaskIndependent for each table Range Default Step 50BF Settings Functions PermittedComments on Settings DBF Breaker Failure Protection GEK-106168E DBF Ranges Models DBF PhaseModel List GroundTechnical Characteristics MechanicalElectrical Communications StandardsTest Standard Class DBF Breaker Failure Protection GEK-106168E Electrical Connections Physical DescriptionCase Internal ConstructionDBF Breaker Failure Protection GEK-106168E Operating Theory Magnetic ModuleCPU Board Power Supply Keyboard and DisplayConnections and Necessary Equipment Visual InspectionPanel Insulation Tests Relay Setting IndicatorsPower Supply Communications Inputs Digital InputsIRIG-B Synchronizing Input Functions 1 50BF 1P Unit Test2 50BF 3P Unit Test Internal ARC Test 4 3P no I FunctionNeutral Overcurrent Unit Test DBF Breaker Failure Protection GEK-106168E Relay Measurement Tests Current MeasurementTiming Measurement DBF Breaker Failure Protection GEK-106168E Installation MaintenanceCONNECTION-TO-GROUND and Disturbances Suppression DBF Breaker Failure Protection GEK-106168E Keyboard and Display DBF General ElectricINF Menu TreeSET ACTModify Settings Protection Settings Group SET KEYView Settings Protection View Protection SettingsConfirm Setting OUT Range Level Valid RangeInformation Group INF KEY StatusControl Group ACT KEY SET DATE/TIMESingle KEY Menu Configuration Menu DBF Breaker Failure Protection GEK-106168E Figures Breaker Failure Logic 189C4114 Sheet External Connections 189C4114 Sheet Front View 226B7412 H9 Rear View 226B7412H10 Dimensions Diagram 226B6086H10 Panel Drilling 226B6086H10 RS232 Connection DBF Relay to PC