ABB REB670 - Basic Applications; Busbar Protection Applications; General; Meshed Corner Application and T-Connection Application

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
3
5
2
1
5
2
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