If an application template is used, the function groups are connected to each other because this link is abso-
lutely essential to ensure proper operation. You can modify the connection in DIGSI 5 via the Function-group
connections Editor. If the connection is missing, DIGSI 5 reports an inconsistency.
You can find more detailed information in chapter 2.1 Function Embedding in the Device.
Resetting the LED Group
Using the Reset the LED group function, you can reset the stored LEDs of the functions in one specific func-
tion group while the activated, stored LEDs of other functions in other function groups remain activated.
Interface with Protection Communication (optional)
All required data is exchanged between the protection function group and the protection communication via
the interface with Protection communication. These are for example:
•
Binary signals
•
Measured values
•
Complex data
You can find more detailed information in chapter 3.5 Protection Communication.
Capacitor-Bank Data (General)
The capacitor-bank data characterizes the data of the capacitor bank to be protected. The data relevant for the
differential protection is shown. The Capacitor bank diff. function group takes the data from the coupled
function groups Capacitor bank and Capacitor bank side.
Output Logic
The output logic treats the pickup and trip signals of the protection and supervision functions in the function
group separately. Pickup logic and output logic are each assigned to the signals. The pickup and output logic
generate the overarching indications (group indications) of the function group. These group indications are
transferred via the Protection-information interface to the Circuit-breaker function group and are processed
further there.
The pickup and operate indications of the protection and supervision functions in the Capacitor bank diff.
function group are combined into one group indication using the following numbers and outputs.
[lo_anrlin, 3, en_US]
Figure 5-27 Generation of Pickup Indication of the Capacitor Bank Diff. Function Group
Function-Group Types
5.5 Function-Group Type Capacitor Bank Differential Protection
SIPROTEC 5, Overcurrent Protection, Manual 227
C53000-G5040-C017-8, Edition 07.2017
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