Analog Signal Triggers - Siemens SIMEAS R-PMU Manual

7
7.2 Fault Recorders
If a trigger condition is detected, the SIMEAS R-PMU starts recording.
The recording time is restarted by retriggering (trigger 2) during recording, thus the fault record
is extended (see figure 7-13).
Channel A
Prefault
time
Fault record
Figure 7-13 Retriggering during recording
If a trigger event (trigger 3) occurs shortly after the end of a fault recording (fault record 1), the
prefault time of the second recording (fault record 2) overlaps with the first recording (see figure
7-14).
Trigger 1
Channel A
Prefault
time
Fault record
Figure 7-14 Overlap of two fault recordings in the prefault time range
7.2.2.2.1

Analog Signal Triggers

The Transient Phasor Recorder provides several options for triggering to analog input signals.
Table 7-20
Measured value
The level and gradient trigger can also be applied to analog signals.
84
Trigger 1
Trigger 2
Recording time
Recording time (restart)
Recording of fault record
Trigger 2
Recording time
Recording time (restart)
Recording of fault record 1
Options of analog signal triggering
AC values
DC values
Trigger 3
Prefault
time
Recording time
Recording of fault record 2
Triggering
rms value of one period
Arithmetic mean over the complete
recording interval
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
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