ABB RET670 Applications Manual page 594

Section 3
IED application
588
Single circuit breaker with double busbar, internal voltage selection
Bus 1
Fuse
bus1 Voltage
VT
V REF 1
Fuse
bus2 Voltage
VT
V REF 2
lineVoltage /1/2/3
VA/VB/VC
ANSI10000095 V1 EN
Figure 228: Connection of the SESRSYN function block in a single breaker, double
busbar arrangement with internal voltage selection
When internal voltage selection is needed, the voltage transformer circuit connections
are made according to figure 228. The voltage from the busbar 1 VT is connected to
U3PBB1 and the voltage from busbar 2 is connected to V3PBB2. The voltage from the
line VT is connected to V3PLN1. The positions of the disconnectors and VT fuses
shall be connected as shown in figure 228. The voltage selection parameter CBConfig
is set to Double bus.
Bus 2
189
289
152
Fuse
VT
Line
1MRK504116-UUS C
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
ANSI10000095-1-en.vsd
Application manual