When a trigger event occurs, the start trigger (a) trips a fault record.
The first part of the recording of the fault record captures the signal profile before the trigger event (Pre-
trigger time). Afterwards the recording of the trigger events (a) to (b) is done. By setting the maximum
record time, the trigger event cannot be completely recorded and the maximum record time (c) ends the
recording.
The configured post-trigger time is disregarded in this case.
Trigger with Post-Trigger Time and Maximum Record Time
The maximum record time is used for the limit of the fault-record length. The recording is ended before
reaching the maximum record time when the post-trigger time expires.
[dwtrig03-140213-01.tif, 1, en_US]
Figure 7-36 Trigger with Pre-Trigger Time, Post-Trigger Time, and Maximum Record Time
a Trigger rising edge
b Trigger falling edge
c End of recording of the 1st post-trigger time
d End of recording of the 2nd post-trigger time
e Maximum record time
t Time line
When a trigger event occurs, the start trigger (a) trips a fault record.
The trigger event is not recorded. The second trigger event extends the recording.
The recording is ended when the post-trigger time expires.
Triggering With the Retrigger Blocking Time
Other Triggers During the Retrigger Blocking Time
The figure below shows that the second trigger does not extend the recording.
7.2.11.3
Fault Recorder
7.2 Function-Group Type Recorder
SIPROTEC 5, Fault Recorder, Manual 255
C53000-G5040-C018-5, Edition 11.2017
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