Function-Group Type Capacitor Bank Differential Protection; Function-Group Types - Siemens 7SJ82 Manual

Function-Group Types

5.5 Function-Group Type Capacitor Bank Differential Protection

5.5 Function-Group Type Capacitor Bank Differential Protection
Function-Group Types
5.5.1
In the following graphic, you can see the structural association of the function-group types to the Capacitor
bank differential protection.
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Figure 5-24
The following function-group types are summarized in the Global DIGSI 5 library: Motor diff
•
Capacitor bank diff
•
Capacitor bank side
You can find the description of the function groupCapacitor bank in chapter
The individual function-group types are stored in the Capacitor bank diff function group folder and can be
selected. In the protection function folders, you find all protection functions which are operational in each
function group. A Capacitor bank diff function group always includes the Capacitor bank and Capacitor
bank side function groups. In total, you can assign a maximum of 3 function groups Capacitor bank or
Capacitor bank side to the Capacitor bank diff function group.
The following table shows you the number of function-group types that can be instantiated for device 7SJ85.
Table 5-7
Device
7SJ85
Interconnection of the function groups is necessary so that the capacitor bank differential protection functions
properly. The Circuit-breaker function group is not listed.
Table 5-8
Capacitor bank
Capacitor bank side 1
224
Function-Group Types Capacitor Bank Diff
Function-Group Types in the Device
Capacitor Bank Diff
Max. 2
Assignment of Protection Function Groups to Protection Function Groups
5.4.1 Overview.
Function-Group Type
Capacitor Bank
Max. 9
Capacitor Bank Diff 1
Side
(2 to 3)
X
X
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Capacitor Bank Side
Max. 9