[scmscofg-180311-01.tif, 1, en_US]
Figure 2-3 Connecting Measuring Points and Function Groups
Interface Between Protection and Circuit-Breaker Function Groups
The protection function group(s) is/are connected to one or several circuit-breaker function groups. This
connection generally determines:
•
Which circuit breaker(s) is/are started by the protection functions of the protection FG.
•
Starting the Circuit-breaker failure protection function (if available in the Circuit-breaker function
group) through the protection functions of the connected protection function group
•
Starting the Automatic reclosing function (AREC, if available in the Circuit-breaker function group)
through the protection functions of the connected Protection function group
Besides the general assignment of the protection function group(s) to the circuit-breaker function groups, you
can also configure the interface for specific functionalities in detail. Further information on this is included
later in the section. Figure 2-6 shows how to reach the detail configuration. Figure 2-7 shows the possible
assignments in detail.
These definitions are also set appropriately for the specific application by the selected application template.
The user can change this linkage as needed, that is, protection function groups can be freely assigned to any
Circuit-breaker function groups.
To check or change the allocation of the protection function groups to the circuit-breaker function groups,
double-click Function group connections in the DIGSI 5 project tree → Name of device (see following
figure).
[scfgverb-190214-01, 1, en_US]
Figure 2-4 Project Tree in DIGSI 5 (Detail)
The window for general routing of the function groups opens in the working area (see following figure).
Basic Structure of the Function
2.1 Function Embedding in the Device
SIPROTEC 5, Overcurrent Protection, Manual 47
C53000-G5040-C017-8, Edition 07.2017
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