![background image](http://html.mh-extra.com/html/abb/relion-615-series/relion-615-series_technical-manual_2395951.webp)
to primary peak value units when the protection relay converts the recordings to the
COMTRADE format.
COMTRADE is the general standard format used in storing disturbance
recordings.
The binary channels are sampled once per task execution of the disturbance recorder. The
task execution interval for the disturbance recorder is the same as for the protection
functions. During the COMTRADE conversion, the digital status values are repeated so
that the sampling frequencies of the analog and binary channels correspond to each other.
This is required by the COMTRADE standard.
The disturbance recorder follows the 1999 version of the COMTRADE
standard and uses the binary data file format.
8.2.5
Settings
Table 849:
DFR Non-group general settings
Parameter
Values (Range) Unit
Step
Default
Description
Operation
1=Enable
5=Disable
1
1=Enable
DFR Enabled /
Disabled
Record length
10...500
fundamental
cycles
1
50
Size of the
recording in
fundamental
cycles
Pre-trg length
0...100
%
1
50
Length of the
recording
preceding the
triggering
Operation
mode
1=Saturation
2=Overwrite
1
1
Operation
mode of the
recorder
Exclusion time
0...1 000 000
ms
1
0
The time during
which
triggerings of
same type are
ignored
Storage rate
32, 16, 8
samples per
fundamental
cycle
32
Storage rate of
the waveform
recording
Table continues on next page
1MAC059074-MB A
Section 8
Measurement functions
615 series ANSI
945
Technical Manual
Содержание Relion 615 series
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