Table 640: Sampling frequencies of the disturbance recorder analog channels
Storage rate
(samples per
fundamental
cycle)
Recording
length
Sampling
frequency of
analog
channels,
when the
rated
frequency is
50 Hz
Sampling
frequency of
binary
channels,
when the
rated
frequency is
50 Hz
Sampling
frequency of
analog
channels,
when the
rated
frequency is
60 Hz
Sampling
frequency of
binary
channels,
when the
rated
frequency is
60 Hz
32 1* Record
length
1600 Hz 400 Hz 1920 Hz 480 Hz
16 2* Record
length
800 Hz 400 Hz 960 Hz 480 Hz
8 4 * Record
length
400 Hz 400 Hz 480 Hz 480 Hz
8.2.2.5 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 303: 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.
Measurement functions
1MRS758755 C
618 REC615 & RER615
Technical Manual
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