GE GEK 106168E manual Monitoring and Recording Functions, Measurement, Associated Breaker Status

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2. OPERATION LOGIC

2.2. MONITORING AND RECORDING FUNCTIONS

2.2.1 MEASUREMENT

The DBF system provides the continuous measurement of phase and ground current values.

These measurements can be accessed directly on the liquid crystal display (HMI) on the front of the relay, or via the GE-LOCALcommunication software.

2.2.2 ASSOCIATED BREAKER STATUS

The DBF system monitors the associated breaker status through the digital inputs 52/b (or 52/a), and it is displayed on the local HMI or through the communications software.

2.2.3 TARGET LAMPS

The DBF incorporates 17 LED target lamps, one fixed LED (two colors) assigned to the system ready function, and 16 user configurable red LEDs. These configurable LEDs are arranged in two columns of 8 LEDs each. The configuration is done using the GE-INTRO software, and it consists on assigning an internal event (or an AND gate of internal events) to an LED. The LED can be configured to have memory (if Vdc is removed or the event causing the operation of the LED gets deactivated) or not and to blink or to be steady. The internal events must be previously defined using the internal signals of the relay. It is possible to use AND, OR and NOT logic gates to define these events. The available internal signals are listed in the following table.

The TARGET RESET button allows testing all target lamps if it is pushed for a short time (lighting up all of them), or resets the sealed-in targets if it remains pressed for three seconds or more.

Please refer to GE_INTRO (configuration software) Instruction book (GEK-105594) for further information.

INTERNAL PROTECTION STATUS SIGNALS

Group

Status

Comment

1.0

Program Initiate

Relay starts running (Vdc just applied).

1.1

Settings change

User changes any setting

1.2

Write Counters

User sets a value for any counter

1.3

Configuration Change

User changes relay configuration

1.4

External Trigger

Oscillography triggered by Dig. Input

1.5

Communications Trigger

Osc. triggered by HMI or GE_LOCAL

1.6

Reset Operation

Latched Relays Reset received

1.7

 

 

1.8

 

 

1.9

 

 

1.10

 

 

1.11

 

 

1.12

 

 

1.13

 

 

1.14

 

 

1.15

 

 

2.0

Input Nº 1

Digital Input #1 Status

2.1

Input Nº 2

Digital Input #2 Status

2.2

Input Nº 3

Digital Input #3 Status

2.3

Input Nº 4

Digital Input #4 Status

2.4

Input Nº 5

Digital Input #5 Status

2.5

Input Nº 6

Digital Input #6 Status

2.6

 

 

GEK-106168E

DBF Breaker Failure Protection

5

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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 General Description Protection∙ Breaker internal arc detection Monitoring AnalysisDBF Breaker Failure Protection GEK-106168E Digital Signal Input # Terminals Protection FunctionsOvercurrent Units Low-Level Overcurrent Breaker Failure Unit 50BF 1PReset of Latching Relays Ground Overcurrent Breaker Failure UnitBreaker Failure without current or very low current Breaker Arc Detection DeviceInternal Protection Status Signals Monitoring and Recording FunctionsMeasurement 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 MonitoringAnalysis Functions BUILT-IN SELF-CHECKING UnitEvent Recorder OscillographyEvents to Trigger Oscillography Tables of Settings ControlTable Selection Active Table INPUT-1 INPUT-0Configurable Inputs and Outputs Time SynchronizationFunction Outputs MAN-MACHINE Interface HMI Remote Communications Breaker Setting Group Active table setting groupCommon to all tables Range Default Step Oscillography Mask Independent for each table Range Default Step 50BF SettingsInternal Arc Settings Functions PermittedComments on Settings DBF Breaker Failure Protection GEK-106168E Ranges Models DBF Phase Model ListDBF GroundTechnical Characteristics MechanicalElectrical Communications StandardsTest Standard Class DBF Breaker Failure Protection GEK-106168E Physical Description CaseElectrical Connections 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 ElectricMenu Tree SETINF ACTSettings Group SET KEY View Settings ProtectionModify 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