Single Circuit Breaker With Single Busbar - ABB REG670 Applications Manual

Section 15
Control
15.1.3.1
15.1.3.2
486

Single circuit breaker with single busbar

WA1
QB1
WA1_MCB
QA1
LINE
IEC10000093 V4 EN
Figure 227: Connection of SESRSYN function block in a single busbar
arrangement
Figure 227 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.
Single circuit breaker with double busbar, external voltage selection
WA1
WA2
WA2_MCB
WA1_MCB
IEC10000094 V4 EN
Figure 228: Connection of SESRSYN function block in a single breaker, double
busbar arrangement with external voltage selection
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
WA1_MCB
WA1_VT
LINE_MCB
LINE_VT
WA1_MCB / WA2_MCB
QB1
QB2
WA1_VT / WA2_VT
LINE_MCB
QA1
LINE_VT
LINE
1MRK 502 071-UEN -
SESRSYN
WA1_VT
U3PBB1*
GRP_OFF
U3PBB2*
LINE_VT
U3PLN1*
U3PLN2*
WA1_MCB
UB1OK
UB1FF
LINE_MCB
ULN1OK
ULN1FF
IEC10000093-4-en.vsd
WA1_VT/
SESRSYN
WA2_VT
U3PBB1*
GRP_OFF
U3PBB2*
LINE_VT
U3PLN1*
U3PLN2*
WA1_MCB/
WA2_MCB UB1OK
UB1FF
LINE_MCB
ULN1OK
ULN1FF
IEC10000094-4-en.vsd
Application manual