NOTE
For capacitor bank protection, the Automatic reclosing function is not applied in most cases. However,
due to flexibility and standardization, the respective interface is offered.
[scrconb1-180713-01.tif, 1, en_US]
Figure 5-18 Connecting Capacitor Bank Function Group with Circuit-Breaker Function Group
Besides the general assignment of the Capacitor bank function group to the Circuit-breaker function group,
you can also configure the interface for certain functionalities in detail. Configure the details in DIGSI 5 using
the Circuit breaker interaction editor in the Capacitor bank function group.
In the detailed configuration of the interface, define:
•
Which operate indications of the protection functions go into the generation of the trip command
•
Which protection functions start the Circuit-breaker failure protection function
•
Which protection functions start the Automatic reclosing function
[scconcap-150713-01.tif, 2, en_US]
Figure 5-19 Connecting Protection Functions and Stage Using the Circuit-Breaker Interaction Editor
If an application template is used, the function groups have already been connected to each other because
this link is essential to ensure proper operation. You can modify the link in DIGSI 5 using the Function-group
connections editor.
You can find more information in chapter 2.1 Function Embedding in the Device. If this link is missing, DIGSI 5
reports an inconsistency.
Protected Object/Equipment Data (FB General)
Capacitor-bank rated and reference data are defined as well as further protected object/equipment data. The
data applies for all functions in the Capacitor bank function group.
For further information, refer to chapter 5.4.3 Application and Setting Notes.
Capacitor Bank Device Status and Blocking by Discharging (FB General)
The functionality detects whether a capacitor bank is online or offline. When the status of the capacitor bank
changes from online to offline, the signal
Discharge
is issued during the capacitor-bank discharging time.
Function-Group Types
5.4 Function-Group Type Capacitor Bank
SIPROTEC 5, Overcurrent Protection, Manual 217
C53000-G5040-C017-8, Edition 07.2017
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