Event Function (Ev); Application; Design - ABB REL 551-C1*2.5 Technical Reference Manual

Protect line differential protection terminal
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2.1
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Event function (EV)

Event function (EV)

Application

When using a Substation Automation system, events can be spontaneously sent or polled from
the terminal to the station level. These events are created from any available signal in the termi-
nal that is connected to the event function block. The event function block can also handle dou-
ble indication, that is normally used to indicate positions of high-voltage apparatuses. With this
event function block, data also can be sent to other terminals over the interbay bus.

Design

As basic, 12 event function blocks EV01-EV12 running with a fast cyclicity, are available in
REx 5xx. When the function Apparatus control is used in the terminal, additional 32 event func-
tion blocks EV13-EV44, running with a slower cyclicity, are available.
Each event function block has 16 connectables corresponding to 16 inputs INPUT1 to
INPUT16. Every input can be given a name with up to 19 characters from the CAP 540 config-
uration tool.
The inputs can be used as individual events or can be defined as double indication events.
The inputs can be set individually, from the Parameter Setting Tool (PST) under the Mask-Event
function, to create an event at pick-up, drop-out or at both pick-up and drop-out of the signal.
The event function blocks EV01-EV06 have inputs for information numbers and function type,
which are used to define the events according to the communication standard IEC 60870-5-103.
Chapter 7
Logic

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