8.2.1.5
Uploading of recordings
The protection relay stores COMTRADE files to the C:\COMTRADE\ folder. The files
can be uploaded with the PCM600 or any appropriate computer software that can
access the C:\COMTRADE\ folder.
One complete disturbance recording consists of two COMTRADE file types: the
configuration file and the data file. The file name is the same for both file types. The
configuration file has .CFG and the data file .DAT as the file extension.
Figure 510: Disturbance recorder file naming
The naming convention of 8+3 characters is used in COMTRADE file naming. The file
name is composed of the last two octets of the protection relay's IP number and
a running counter, which has a range of 1...9999. A hexadecimal representation is
used for the IP number octets. The appropriate file extension is added to the end of
the file name.
8.2.1.6
Deletion of recordings
There are several ways to delete disturbance recordings. The recordings can be
deleted individually or all at once.
Individual disturbance recordings can be deleted with PCM600 or any appropriate
computer software, which can access the protection relay's C:\COMTRADE folder.
The disturbance recording is not removed from the protection relay's memory until
both of the corresponding COMTRADE files, .CFG and .DAT, are deleted. The user
may have to delete both of the files types separately, depending on the software
used.
Deleting all disturbance recordings at once is done either with PCM600 or any
appropriate computer software, or from the LHMI via the Clear > Disturbance
records menu. Deleting all disturbance recordings at once also clears the pre-
trigger recording in progress.
Measurement functions
1MRS757644 H
968
620 series
Technical Manual
