Up to 100 disturbance reports can be stored. If a new disturbance is to be recorded
when the memory is full, the oldest disturbance report is overwritten by the new
one. The total recording capacity for the disturbance recorder is depending of
sampling frequency, number of analog and binary channels and recording time and
settings information. Figure
shows the number of recordings versus the total
recording time tested for a typical configuration, that is, in a 50 Hz system it is
possible to record 100 where the average recording time is 3.4 seconds. The
memory limit does not affect the rest of the disturbance report (Event list (EL),
Event recorder (ER), Indications (IND) and Trip value recorder (TVR)).
100
400 s
350
300
40
60
80
40 analog
96 binary
20 analog
96 binary
3,4 s
6,3 s
6,3 s
60 Hz
50 Hz
6,3 s
3,4 s
250
Total recording time
Number of recordings
en05000488.vsd
IEC05000488 V1 EN-US
Figure 224:
Example of number of recordings versus the total recording time
The maximum number of recordings depend on each recordings
total recording time. Long recording time will reduce the number of
recordings to less than 100.
The IED flash disk should NOT be used to store any user files. This
might cause disturbance recordings to be deleted due to lack of disk
space.
Disturbance information
M12155-175 v3
Date and time of the disturbance, the indications, events, fault location and the trip
values are available on the local HMI. To acquire a complete disturbance report the
Section 11
1MRK 505 384-UEN A
Monitoring
472
Breaker protection REQ650 2.2 IEC
Technical manual
Summary of Contents for impreza 2017
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