Description Of 1 Ph Package B20A - ABB RELION 670 Series Applications Manual

Section 3
Configuration
QB1
QB2
QA1
GUID-223672EB-7E5B-410C-99F0-04B100FD2787 V2 EN-US
Figure 8:
3.1.7

Description of 1 ph package B20A

One-phase version of the IED with two low-impedance differential protection zones and twelve CT
inputs B20.
• Due to three available binary input modules, the B20A is intended for applications without
need for dynamic Zone Selection such as substations with single busbar with or without bus-
section breaker, breaker-and-a-half or double breaker arrangements. Three such IEDs offer
cost effective solutions for such simple substation arrangements with up to twelve CT inputs.
50
ZA
ZB
QB1
QB2
QB1
QA1
QB2
QB1
QB2
QA1
QA1
VERSION OF REB670
REB670(A31 – X03) 3-Phase, 8 Bays, 2 Zones for Double Busbar
Stations with Breaker Failure Protection and End Fault Protection 24AI
* With Just one CT in the Bus Section Bay
Configuration diagram for A31, configuration X03
87B
BDC GAPC
87B
1
BDC GAPC
87B
BDC GAPC
87B
BDC GAPC
2
87B
BDC GAPC
87B
BDC GAPC
8
87B
BDC GAPC
MET I MET Isqi
C MMXU C MSQI
51_67 4(3I>) 50BF 3I>BF
OC4 PTOC CC RBRF
MET I MET Isqi
C MMXU C MSQI
51_67 4(3I>) 50BF 3I>BF
OC4 PTOC CC RBRF
87B 3Id/I
BCZT PDIF
51_67 4(3I>) 50BF 3I>BF
OC4 PTOC CC RBRF
MET I MET Isqi
C MMXU C MSQI
Other Functions in Library
87B
BDC GAPC
Optional Functions
79 5(0→1)
SMB RREC
NUMBER OF FEEDERS IN THE STATION
( EXCLUDING BUS COUPLER BAY)
1MRK 505 337-UUS A
REB670(A31-X03)
DFR/SER DR
DRP RDRE
2
87B 3Id/I
BZIT GGIO
8
1
87B 3Id/I
BUT PTRC
87B 3Id/I
BZNT PDIF
2
87B 3Id/I
BUT PTRC
87B 3Id/I
8
BZNT PDIF
87B 3Id/I
BUT PTRC
7*
Application manual
SEMOD129275-40 v8