15.7.6
Technical data
Table 596:
DRPRDRE technical data
Function
Range or value
Accuracy
Pre-fault time
(0.05–9.90) s
-
Post-fault time
(0.1–10.0) s
-
Limit time
(0.5–10.0) s
-
Maximum number of recordings
100, first in - first out
-
Time tagging resolution
1 ms
See table
Maximum number of analog inputs
30 + 10 (ex internally
derived)
-
Maximum number of binary inputs
96
-
Maximum number of phasors in the Trip
Value recorder per recording
30
-
Maximum number of indications in a
disturbance report
96
-
Maximum number of events in the Event
recording per recording
150
-
Maximum number of events in the
Sequence of events
1000, first in - first out
-
Maximum total recording time (3.4 s
recording time and maximum number of
channels, typical value)
340 seconds (100 recordings)
at 50 Hz, 280 seconds (80
recordings) at 60 Hz
-
Sampling rate
1 kHz at 50 Hz
1.2 kHz at 60 Hz
-
Recording bandwidth
(5-300) Hz
-
15.8
Sequential of events
15.8.1
Introduction
Continuous event-logging is useful for monitoring the system from an overview
perspective and is a complement to specific disturbance recorder functions.
The sequential of events logs all binary input signals connected to the Disturbance
report function. The list may contain up to 1000 time-tagged events stored in a ring-buffer.
15.8.2
Principle of operation
When a binary signal, connected to the disturbance report function, changes status, the
sequential of events function stores input name, status and time in the sequential of
1MRK505222-UUS C
Section 15
Monitoring
971
Technical reference manual
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