Sel 2414 - Page 5

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Date Code 20130214 Instruction Manual SEL-2414 Transformer Monitor
Table of Contents
Counter Variables.............................................................................................................................................4.6
Math Variables .................................................................................................................................................4.8
Output Contacts................................................................................................................................................4.8
SEL
OGIC Control Equation Operators..................................................................................................................4.9
Operator Precedence ..................................................................................................................................4.9
Section 5: Metering and Monitoring
Overview...............................................................................................................................................................5.1
Metering................................................................................................................................................................5.2
RTD Metering ..................................................................................................................................................5.2
RTD/TC Metering............................................................................................................................................5.3
Fundamental Metering.....................................................................................................................................5.3
Power Measurement Conventions ..............................................................................................................5.4
Energy Metering...............................................................................................................................................5.5
Maximum and Minimum Metering..................................................................................................................5.5
Demand Metering ............................................................................................................................................5.6
Thermal Demand (EDEM := THM) ...........................................................................................................5.7
Rolling Demand (EDEM := ROL) .............................................................................................................5.7
Demand Meter Settings ..............................................................................................................................5.8
View or Reset Demand Metering Information ...........................................................................................5.8
Demand Metering Updating and Storage ...................................................................................................5.8
Analog Input Metering.....................................................................................................................................5.8
Math Variable Metering ...................................................................................................................................5.9
Remote Analog Metering.................................................................................................................................5.9
Monitoring ..........................................................................................................................................................5.10
Thermal Element............................................................................................................................................5.10
Application Description ............................................................................................................................5.10
Transformer Nameplate Application Description ....................................................................................5.11
Operating Characteristic ...........................................................................................................................5.13
Temperature Inputs to the Thermal Element ............................................................................................5.14
Cooling Stage Determination ...................................................................................................................5.15
Thermal Element Calculations .................................................................................................................5.16
Insulation Loss of Life .............................................................................................................................5.18
Thermal Probe Selection Settings Descriptions .......................................................................................5.20
Thermal Element Settings Descriptions ...................................................................................................5.21
Thermal Alarm Limits ..............................................................................................................................5.25
Cooling Stage n Constants .......................................................................................................................5.31
Thermal Element Condition .....................................................................................................................5.33
Thermal Monitor Reports...............................................................................................................................5.33
Viewing Information .................................................................................................................................5.33
Through-Fault Event Monitor........................................................................................................................5.37
Meaning of Accumulated Through-Fault Capability ...............................................................................5.39
Through-Fault Monitor Report (TFE Command) ....................................................................................5.40
Analog Signal Profiling..................................................................................................................................5.41
Signal Profile Settings ..............................................................................................................................5.41
Section 6: Settings
Overview...............................................................................................................................................................6.1
View/Change Settings Using the Front Panel.......................................................................................................6.2
View/Change Settings Over Communications Port..............................................................................................6.3
View Settings ...................................................................................................................................................6.3
Enter Settings...................................................................................................................................................6.4
Device Settings (SET Command).........................................................................................................................6.5
Transformer Settings........................................................................................................................................6.5
Analog Inputs...................................................................................................................................................6.6
Analog Input Calibration Process ..............................................................................................................6.6
Analog Input Setting Example ...................................................................................................................6.7
Analog Input Settings .................................................................................................................................6.9