Schweitzer Engineering Laboratories SEL-421-4 - Page 1076

9.12
SEL-400 Series Relays Instruction Manual Date Code 20171006
Reporting
Oscillography
The configuration file has the following format:
➤ Station name, device identification, COMTRADE standard year
➤ Number and type of channels
➤ Channel name units and conversion factors
➤ Line frequency
➤ Sample rate and number of samples
➤ Date and time of first data point
➤ Date and time of trigger point
➤ Data file type
➤ Time stamp multiplication factor
.DAT File
NOTE: The analog data are time-
aligned to when the data changed on
the input terminals. Similarly, the
contact inputs are time-aligned to
when the data changed on the input
terminals. All other digital data are
time-aligned to when the value
changed in the relay.
The .DAT file follows the COMTRADE binary standard. The format of the binary
data files is sample number, time stamp, data value for each analog channel, and
grouped status channel data for each sample in the file. There are no data separa-
tors in the binary file, and the file contains no carriage return/line feed characters.
The sequential position of the data in the binary file determines the data transla-
tion. Refer to the IEEE Std C37.111-1999, Common Format for Transient Data
Exchange (COMTRADE) for Power Systems for more information. Programs
that read the binary COMTRADE files include
ACSELERATOR Analytic Assis-
tant SEL-5601 Software and
ACSELERATOR QuickSet SEL-5030 Software.
1,87USAFE,,,0
2,UNUSED2,,,0
3,UNUSED3,,,0
4,UNUSED4,,,0
5,OC1,,,0
6,CC1,,,0
7,OC2,,,0
8,CC2,,,0
9,87LA,,,0
10,87LB,,,0
11,87LC,,,0
12,87LQ,,,0
13,87LG,,,0
14,87FLSOK,,,0
15,87DTTRX,,,0
.
.
.
382,PCT06Q,,,0
383,PCT07Q,,,0
384,PCT08Q,,,0
384 Digital Points
60
Nominal System Frequency (INFREQ Setting)
1
2000,1000
2000 = Sample Rate (SRATE setting)
1000 = Length of the Report x Sample Rate (LER x SRATE)
17/03/2011,08:36:38.697687
Time Stamp of the First Data Point
17/03/2011,08:36:38.799850
Time Stamp of the Trigger Point
BINARY
1
a
If ERDIG is set to S, the digital points are all the Relay Word bits set in ERDG as well as the Relay Word bits that are always included in the
event report. If ERDIG is set to A, the digital points are all the Relay Word bits in the device.
COMTRADE .CFG Configuration File Data (Continued)