ABB 650 series User Manual

8.1.3.1 Single circuit breaker with single busbar
M12324-3 v12
WA1_MCB
LINE
WA1
QB1
QA1
IEC10000093-4-en.vsd
LINE_VT
LINE_MCB
WA1_MCB
SESRSYN
U3PBB1*
U3PBB2*
U3PLN1*
U3PLN2*
GRP_OFF
UB1OK
UB1FF
ULN1OK
ULN1FF
WA1_VT
WA1_VT
LINE_VT
LINE_MCB
WA1_MCB
IEC10000093 V4 EN-US
Figure 34: Connection of SESRSYN function block in a single busbar
arrangement
Figure 34 illustrates connection principles for a single busbar. For the SESRSYN
function there is one voltage transformer on each side of the circuit breaker. The
voltage transformer circuit connections are straightforward; no special voltage
selection is necessary.
The voltage from busbar VT is connected to U3PBB1 and the voltage from the line
VT is connected to U3PLN1. The conditions of the VT fuses shall also be
connected as shown above. The voltage selection parameter CBConfig is set to No
voltage sel.
Section 8 1MRK 511 423-UEN A
Control
102 Bay control REC650 2.2 IEC
Application manual

ABB 650 series Specifications

General

Brand	ABB
Model	650 series
Category	Controller
Language	English