ABB RELION SMU615 Technical Manual page 220

Measurement functions
data from all analog and binary channels of the disturbance recorder, at the sample
rate of 32 samples per fundamental cycle.
The user can view the number of recordings currently in memory with the Number
of recordings monitored data. The currently used memory space can be viewed with
the Rec. memory used monitored data. It is shown as a percentage value.
7.2.2.4 Sampling frequencies
The sampling frequency of the disturbance recorder analog channels depends
on the set rated frequency. One fundamental cycle always contains the amount
of samples set with the
channels are sampled once per task execution of the disturbance recorder, the
sampling frequency of binary channels is 400 Hz at the rated frequency of 50 Hz and
480 Hz at the rated frequency of 60 Hz.
Table 249: Sampling frequencies of the disturbance recorder analog channels
Storage rate
(samples per
fundamental
cycle)
32
16
8
7.2.2.5 Uploading of recordings
The merging unit 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.
220
The maximum number of recordings is 100.
Storage rate parameter. Since the states of the binary
Recording Sampling
length frequency of
analog
channels,
when the
rated
frequency is
50 Hz
1* Record 1600 Hz
length
2* Record 800 Hz
length
4 * Record 400 Hz
length
Sampling Sampling
frequency of frequency of
binary analog
channels, channels,
when the when the
rated rated
frequency is frequency is
50 Hz 60 Hz
400 Hz 1920 Hz
400 Hz 960 Hz
400 Hz 480 Hz
1MRS758407 C
Sampling
frequency of
binary
channels,
when the
rated
frequency is
60 Hz
480 Hz
480 Hz
480 Hz
SMU615
Technical Manual