ABB REB670 Series - Basic applications; General; Meshed corner application and T-connection application

GUID-23F2558B-FB4A-4912-9EF9-F93706F32213 v1
Six-zone busbar differential protection, twenty-four, single-phase CT
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Busbar protection 6Z-1Ph-24CT,
main function
BDZSGAPC
Id/I
IEC16000110 V1 EN-US
87B
Busbar protection 6Z-1Ph-24CT,
differential protection function
BZNPDIF_Zx
(1≤ x ≤6)
Id/I
IEC16000110 V1 EN-US
87B
Busbar protection 6Z-1Ph-24CT,
check zone protection function
BCZPDIF
Id/I
IEC16000110 V1 EN-US
87B
Busbar protection 6Z-1Ph-24CT,
feeder bay function
BFPTRC_Fx
(1≤ x ≤24)
Id/I
IEC16000110 V1 EN-US
87B
Busbar protection 6Z-1Ph-24CT,
bus interconnector bay function
BICPTRC_x
(1≤ x ≤5)
Id/I
IEC16000110 V1 EN-US
87B
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 one-and-half breaker or ring busbar arrangements.
IEC11000237-1-en.vsd
IEC11000237 V1 EN-US
Figure 39: Example of REB670 application on T-connection
Section 6 1MRK 505 370-UEN D
Differential protection
92 Busbar protection REB670
Application manual