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7
7.2 Fault Recorders
Recording rate = 1 nominal cycle
f
f
n
1/3 f
n
5 nominal cycles
Recorded value
Actual signal
Figure 7-19 Triggering with recording rate = 1 nominal cycle
Recording rate = 3 nominal cycles
f
f
n
1/3 f
n
5 nominal cycles
Recorded value
Actual signal
Figure 7-20 Triggering with recording rate = 3 nominal cycles
88
Trigger
Filter time 5 nominal cycles
Trigger
Filter time
15 nominal cycles
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
Trigger threshold,
gradient trigger
t [nominal cycles ]
Trigger threshold,
gradient trigger
t [nominal cycles ]
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