Function Block; Input Signals; Technical Data; Event Recorder - ABB Relion 670 Series Technical Reference Manual

1MRK 505 208-UEN B
13.8.3
13.8.4
13.8.5
13.9
13.9.1
13.9.2
Technical reference manual

Function block

The Indications function has no function block of it's own. It is included in the
DRPRDRE block and uses information from the BxRBDR block.

Input signals

The Indications function may log the same binary input signals as the Disturbance
report function.

Technical data

Table 364: technical data
Function
Buffer capacity

Event recorder

Introduction

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 report 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).

Principle of operation

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 generated by both internal logical signals and binary input channels. The
internal signals are time-tagged in the main processor module, while the binary
input channels are time-tagged directly in each I/O module. The events are
collected during the total recording time (pre-, post-fault and limit time), and are
stored in the disturbance report flash memory at the end of each recording.
Maximum number of indications
presented for single disturbance
Maximum number of recorded
disturbances
Section 13
Monitoring
Value
96
100
529