Technical Data; Event Recorder; Functionality; Function Block - Hitachi Relion 650 Series Technical Manual

Section 12
Monitoring
• the signal must be connected to binary input BxRBDR function block
• the DRPRDRE parameter Operation must be set On
• the DRPRDRE must be trigged (binary or analog)
• the input signal must change state from logical 0 to 1 during the recording time.
Indications are selected with the indication mask (IndicationMask) when setting the binary inputs.
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.
12.5.5

Technical data

Table 216: DRPRDRE technical data
Function
Buffer capacity
12.6

Event recorder

12.6.1

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).
12.6.2

Function block

The Event recorder has no function block of its own.
12.6.3

Signals

12.6.3.1

Input signals

The Event recorder function logs the same binary input signals as the Disturbance report function.
12.6.4

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 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
210
Maximum number of indications presented for single
disturbance
Maximum number of recorded disturbances
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Technical Manual