Single Circuit Breaker With Single Busbar - ABB Relion 670 Series Applications Manual

1MRK 511 358-UUS A
13.1.3.1

Single circuit breaker with single busbar

V 1
REF
VA/VB/VC
ANSI10000093 V1 EN-US
Figure 105: Connection of SESRSYN (25) function block in a single busbar arrangement
Figure 105
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
Application manual
Bus 1
189
Fuse
VT
bus 1Voltage
lineVoltage/1/2/3
Fuse
VT
illustrates connection principles for a single busbar. For the SESRSYN (25) function
CBConfig is set to No voltage sel .
152
Line
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
Section 13
Control
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