ABB Relion 670 Series Technical Reference Manual page 977

1MRK505222-UUS C
15.7.6
15.8
15.8.1
15.8.2
Technical reference manual
Technical data
Table 596: DRPRDRE technical data
Function
Pre-fault time
Post-fault time
Limit time
Maximum number of recordings
Time tagging resolution
Maximum number of analog inputs
Maximum number of binary inputs
Maximum number of phasors in the Trip
Value recorder per recording
Maximum number of indications in a
disturbance report
Maximum number of events in the Event
recording per recording
Maximum number of events in the
Sequence of events
Maximum total recording time (3.4 s
recording time and maximum number of
channels, typical value)
Sampling rate
Recording bandwidth
Sequential of events
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.
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
Range or value
(0.05–9.90) s
(0.1–10.0) s
(0.5–10.0) s
100, first in - first out
1 ms
30 + 10 (external + internally
derived)
96
30
96
150
1000, first in - first out
340 seconds (100 recordings)
at 50 Hz, 280 seconds (80
recordings) at 60 Hz
1 kHz at 50 Hz
1.2 kHz at 60 Hz
(5-300) Hz
Section 15
Monitoring
Accuracy
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See table 28
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