9.10
SEL-400 Series Relays Instruction Manual Date Code 20171006
Reporting
Oscillography
lography of the SEL-400 series relays with SV remote data acquisition depends on the
remote data acquisition unit. Furthermore, the received 4.8 kHz/4.0 kHz data are resam-
pled to 8 kHz for raw data oscillography recording.
COMTRADE files always include all eight Relay Word bits from each row of the
Relay Word used as the base set for the relay (see Section 7: Metering, Monitor-
ing, and Reporting in the product-specific instruction manual for a list of these
bits). Additionally, it includes the rows containing those Relay Word bits config-
ured for inclusion by the ERDG setting.
The relay stores high-resolution raw data oscillography in binary format and uses
COMTRADE file types to output these data:
➤ .HDR—header file
➤ .CFG—configuration file
➤ .DAT—high-resolution raw data file
The .HDR file contains summary information about the event in ASCII format.
The .CFG file is an ASCII configuration file that describes the layout of the .DAT
file. The .DAT file is in binary format and contains the values for each input
channel for each sample in the record. These data conform to the IEEE C37.111-
1999 COMTRADE standard.
.HDR File
The .HDR file contains the summary and relay settings information that appears in the
event report for the data capture (see Event Summary Section of the Event Report on
page 9.23 and Settings Section of the Event Report on page 9.24). The settings portion
is as illustrated in Figure 9.5.
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