Deletion Of Recordings - ABB RELION REX640 Technical Manual

Section 8
Measurement functions
8.2.3.6
8.2.3.7
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Figure 713: 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.

Deletion of 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. Both file
types may need to be deleted 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.
Storage mode
The disturbance recorder can capture data in two modes: waveform and trend mode.
The storage mode can be set individually for each trigger source with the Storage
mode parameter of the corresponding analog channel or binary channel, the Stor.
1MRS759142 C
REX640
Technical Manual