ABB RELION REB670, Applications Manual

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SEMOD130390-4 v4
Status of primary switching object for busbar protection zone selection
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Status of primary switching object for
Busbar protection zone selection
BDCGAPC
(128 instances)
- -
6.1.2 Basic applications
SEMOD127448-1 v1
6.1.2.1 General
M12097-3 v3
Basic types of applications for REB670 IED are shown and described in this chapter.
For these applications usually three phase version of the IED, with two differential
zones and four (or even eight) 3-phase CT inputs, is used.
6.1.2.2 Meshed corner application and T-connection application
M12098-3 v4
The REB670 general differential function is suitable for application on mesh-corner
arrangements. Mesh corners might have four or even up to six CT inputs and are
basically simple single busbar arrangements. A similar application will occur when a
T-protection is required for breaker-and-a-half or ring busbar arrangements.
ANSI11000237-1-en.vsd
252
352
152
ANSI11000237 V1 EN-US
Figure 40: Example of REB670 application on T-connection
6.1.3 Busbar protection applications
SEMOD127456-1 v2
A busbar protection scheme design depends very much on the substation arrangement.
Complexity of the scheme can drastically vary from station to station. Typical
1MRK 505 370-UUS A
Section 6
Differential protection
Busbar protection REB670 2.2 ANSI 109
Application manual