Basler Electric DECS-400 - Manual (Page 63)

9369700990 Rev R 51
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Lower
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Raise
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Start
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Stop
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Switch Input 1
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Switch Input 2
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Switch Input 3
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Switch Input 4
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Switch Input 5
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Switch Input 6
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Switch Input 7
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Switch Input 8
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Switch Input 9
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Switch Input 10
Data Logging
The data logging function of the DECS-400 can record up to six oscillography records. DECS-400
oscillography records use the IEEE Standard Common Format for Transient Data Exchange
(COMTRADE). Each record is time- and date-stamped. After six records have been recorded, the DECS-
400 begins recording the next record over the oldest record. Because all oscillography records are stored
in volatile memory, all records are lost if DECS-400 operating power is interrupted.
Each oscillography record can consist of up to six user-selectable variables with up to 600 data points
recorded for each variable. The interval between records is adjustable from 4 milliseconds to 10 seconds.
Data points may be selected for pre-trigger operation in order to capture events prior to a fault. Up to 599
pre-trigger data points may be selected. Data points not designated for pre-trigger recording are assigned
to the post-trigger portion of the fault record. This feature, combined with the adjustable sample rate,
allows for flexible data sampling around the fault.
A maximum of six variables may be selected to trigger a sequence of events record. The available
variables are listed below.
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Auxiliary Voltage Input
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AVR PID Error Signal Input
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Bus Frequency
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Bus Voltage
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Compensated Frequency Deviation
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Control Output
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Cross Current Input
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Field Current
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Field Voltage
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Frequency Response
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Generator Average Current
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Generator Average Voltage
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Generator Frequency
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Generator Ia
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Generator Ib
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Generator Ic
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Generator kVA
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Generator kvar
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Generator kW
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Generator Power Factor
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Generator Vab
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Generator Vbc
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Generator Vca
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Negative Sequence Current
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Negative Sequence Voltage
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Overexcitation Controller Output
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PF Mode Output
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Phase Angle Ia - Vca
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Phase Angle Iaux - Vca
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Phase Angle Ib - Vca
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Phase Angle Ic - Vca
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Phase Angle Vab
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Phase Angle Vbc
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PID Integrator State
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Positive Sequence Current
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Positive Sequence Voltage
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PSS Electrical Power
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PSS Filtered Mechanical Power
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PSS Final Output
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PSS Lead-Lag #1
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PSS Lead-Lag #2
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PSS Lead-Lag #3
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PSS Lead-Lag #4
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PSS Mechanical Power
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PSS Mechanical Power LP #1
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PSS Mechanical Power LP #2
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PSS Mechanical Power LP #3
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PSS Mechanical Power LP #4
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PSS Post-Limit Output
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PSS Power HP #1
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PSS Pre-Limit Output
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PSS Speed HP #1
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PSS Synthesized Speed
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PSS Terminal Voltage
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PSS Torsional Filter #1
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PSS Torsional Filter #2
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PSS Washed Out Power
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PSS Washed Out Speed
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Stator Current Limiter Output
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Terminal Frequency Deviation
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Time Response
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Underexcitation Controller Output
DECS-400 Functional Description