Single Circuit Breaker With Single Busbar - ABB REB670 Applications Manual

1MRK 505 370-UUS A
12.1.3.1
Busbar protection REB670 2.2 ANSI
Application manual

Single circuit breaker with single busbar

Fuse
VT
1Voltage
bus
V REF 1
lineVoltage/1/2/3
VA/VB/VC
ANSI10000093 V1 EN-US
Figure 119: Connection of SESRSYN (25) function block in a single busbar
arrangement
Figure 119 illustrates connection principles for a single busbar. For the SESRSYN (25)
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 V3PB1 and the voltage from the line VT
is connected to V3PL1. The conditions of the VT fuses shall also be connected as
shown above. The voltage selection parameter CBConfig is set to No voltage sel.
Bus 1
189
152
Fuse
VT
Line
Section 12
Control
M12324-3 v12
SESRSYN (25)
V3PB1* SYNOK
V3PB2* AUTOSYOK
V3PL1* AUTOENOK
V3PL2* MANSYOK
BLOCK MANENOK
BLKSYNCH TSTSYNOK
BLKSC TSTAUTSY
BLKENERG TSTMANSY
BUS1_OP TSTENOK
BUS1_CL VSELFAIL
BUS2_OP B1SEL
BUS2_CL B2SEL
LINE1_OP L1SEL
LINE1_CL L2SEL
LINE2_OP SYNPROGR
LINE2_CL SYNFAIL
VB1OK VOKSYN
VB1FF VDIFFSYN
VB2OK FRDIFSYN
VB2FF FRDIFFOK
VL1OK FRDERIVA
VL1FF VOKSC
VL2OK VDIFFSC
VL2FF FRDIFFA
STARTSYN PHDIFFA
TSTSYNCH FRDIFFM
TSTSC PHDIFFM
TSTENERG INADVCLS
AENMODE VDIFFME
MENMODE FRDIFFME
PHDIFFME
Vbus
VLine
MODEAEN
MODEMEN
ANSI0000093-1-en.vsd
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