7 RECORD FORMAT AND NAMING, AND MASS STORAGE
CAPACITY
7.1 RECORD FORMAT
Records comply with the COMTRADE standard IEEE C37.111-1999, IEEE Standard Common Format for
Transient Data Exchange for Power Systems. The ".dat", ".hdr", ".cfg", ".inf" and ".tri" files are zipped
together in a ".zic" (zipped comtrade) file for faster transmission.
The ".zic" files are created following the RFC 1951, DEFLATE Compressed Data Format Specification.
The ".hdr" files have the information about the Reason for the trigger and the location of the fault, the
md5sum of the ".dat" and ".cfg" files, and the status of the equipment when the record was created.
The ".inf" files have the groups and the power lines parameters. The data are formatted according to the
requirements of Alstom's Analise software.
The ".tri" files have the sequence of digital events. The data was formatted according to the requirements of
Alstom's Analise software.
7.2 RECORD NAMING
Records are named using the COMNAME methodology, according to IEEE C37.232, Recommended
Practice for Naming Time Sequence Data Files.
Fault, Disturbance, Steady-state, and Sequence of Events records are named as follows:
STARTDATE,STARTTIME,TIMECODE,STATIONID,DEVICEID,COMPANY,DURATION,TYPE.ZIC
Traveling wave records are named as follows:
STARTDATE,STARTTIME,TIMECODE,STATIONID,DEVICEID,COMPANY,DURATION,TW,TERMINAL.ZIC
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