ABB ret650, Technical Manual

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The name of the binary signal that appears in the Indication function is the user-
defined name assigned at configuration of the IED. The same name is used in
disturbance recorder function, indications and event recorder function.
14.5.5 Technical data
Table 381: DRPRDRE technical data
Function Value
Buffer capacity Maximum number of indications
presented for single disturbance
96
Maximum number of recorded
disturbances
100
14.6 Event recorder
14.6.1 Functionality
Quick, complete and reliable information about disturbances in the primary and/or in
the secondary system is vital, for example, time-tagged events logged during
disturbances. This information is used for different purposes in the short term (for
example corrective actions) and in the long term (for example functional analysis).
The event recorder logs all selected binary input signals connected to the Disturbance
recorder function. Each recording can contain up to 150 time-tagged events.
The event recorder information is available for the disturbances locally in the IED.
The event recording information is an integrated part of the disturbance record
(Comtrade file).
14.6.2 Function block
The Event recorder has no function block of it’s own.
14.6.3 Signals
14.6.3.1 Input signals
The Event recorder function logs the same binary input signals as the Disturbance
report function.
14.6.4 Operation principle
When one of the trig conditions for the disturbance report is activated, the event
recorder logs every status change in the 96 selected binary signals. The events can be
1MRK 504 135-UEN A
Section 14
Monitoring
475
Technical manual