Trip value rec
Sequential of
events
Event recorder
Indications
Disturbance
recorder
A1-4RADR
B1-6RBDR
Disturbance Report
Binary signals
Analog signals
A4RADR
B6RBDR
DRPRDRE
ANSI09000337-1-en.vsd
ANSI09000337 V1 EN
Figure 254:
Disturbance report functions and related function blocks
The whole disturbance report can contain information for a number of recordings, each
with the data coming from all the parts mentioned above. The sequential of events
function is working continuously, independent of disturbance triggering, recording time,
and so on. All information in the disturbance report is stored in non-volatile flash
memories. This implies that no information is lost in case of loss of auxiliary power. Each
report will get an identification number in the interval from 0-999.
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. In a 60 Hz system it is possible
to record 80 where the maximum recording time is 3.4 seconds. The memory limit does
not affect the rest of the disturbance report (Sequential of events, Event recorder,
Indications and Trip value recorder).
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.
1MRK 502 048-UUS A
Section 14
Monitoring
569
Technical manual
