ABB 615 Series - Sampling Frequencies

8.2.2.4 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 Storage rate parameter. Since the states of the binary 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 848: Sampling frequencies of the digital fault 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.
Section 8 1MAC059074-MB A
Measurement functions
940 615 series ANSI
Technical Manual