10.36
SEL-751 Relay Instruction Manual Date Code 20170927
Analyzing Events
High-Impedance Fault (HIF) Event Reporting
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
➤ HIF digital relay word bit names
➤ Nominal frequency
➤ Number of samples
➤ Date and times of first data point and event trigger
The .CFG file references analog quantities that are particular to high-
impedance fault detection. See High-Impedance Fault Compressed Event
Report on page 10.34 for a description of HIF analog and digital values.
.DAT File
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 digital channel status data for each sample in the file. There are
no data separators or carriage return/line feed characters in the binary file. The
sequential position of the data in the binary file determines the data
translation. Refer to the IEEE Standard Common Format for Transient Data
Exchange (COMTRADE) for Power Systems, IEEE C37.111-1999 for more
information. Many programs read the binary COMTRADE files. These
programs include Analytic Assistant. See Retrieving COMTRADE Event Files
on page 10.29 for details on retrieving COMTRADE event files via FIL
command, FTP, or MMS File transfer.
1,IARMS,A,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
2,IBRMS,B,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
3,ICRMS,C,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
4,SDIA,A,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
5,SDIB,B,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
6,SDIC,C,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
7,SDIAREF,A,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
8,SDIBREF,B,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
9,SDICREF,C,,A,<scale factor>,0.0,0,-32767,32767,<CTR>,1,P
10,dA,A,,A,1.000000,0.0,0,-32767,32767,<CTR>,1,P
11,dB,B,,A,1.000000,0.0,0,-32767,32767,<CTR>,1,P
12,dC,C,,A,1.000000,0.0,0,-32767,32767,<CTR>,1,P
Analog Channel Data
13,T7CNTA,A,,,1,0,0,-32767,32767,1,1,P
14,T7CNTB,B,,,1,0,0,-32767,32767,1,1,P
15,T7CNTC,C,,,1,0,0,-32767,32767,1,1,P
16,T8CNTA,A,,,1,0,0,-32767,32767,1,1,P
17,T8CNTB,B,,,1,0,0,-32767,32767,1,1,P
17,T8CNTB,B,,,1,0,0,-32767,32767,1,1,P
Analog Channel Data
1,<RWBIT>,,,0
...
##,<RWBIT>,,,0
Digital (Status)
Channel Data
NFREQ
0
0, <last sample number>
dd/mm/yyyy,hh:mm:ss.ssssss
First Data Point
dd/mm/yyyy,hh:mm:ss.ssssss
Trigger Point
BINARY
1
Figure 10.16 Sample HIF COMTRADE .CFG Configuration File Data (Continued)
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