Single Circuit Breaker With Single Busbar - ABB REL670 2.2 IEC Applications Manual

Section 15
Control
15.1.3.1
602

Single circuit breaker with single busbar

WA1
QB1
WA1_MCB
QA1
LINE
IEC10000093 V4 EN-US
Figure 300: Connection of SESRSYN function block in a single busbar
arrangement
Figure 300 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.
WA1_VT
GRP_OFF
LINE_VT
WA1_MCB
WA1_MCB
WA1_VT
LINE_MCB LINE_MCB
LINE_VT
Line distance protection REL670 2.2 IEC
1MRK 506 369-UEN B
M12324-3 v12
SESRSYN
U3PBB1*
U3PBB2*
U3PLN1*
U3PLN2*
UB1OK
UB1FF
ULN1OK
ULN1FF
IEC10000093-4-en.vsd
Application manual