Single Circuit Breaker With Double Busbar, External Voltage Selection - ABB Relion 670 Series Applications Manual

Section 13
Control
13.1.3.2

Single circuit breaker with double busbar, external voltage selection

bus Voltage
VREF1
VA/VB/
ANSI10000094 V1 EN-US
Figure 106: Connection of SESRSYN (25) function block in a single breaker, double busbar
In this type of arrangement no internal voltage selection is required. The voltage selection is made
by external relays typically connected according to figure 106. Suitable voltage and VT fuse failure
supervision from the two busbars are selected based on the position of the busbar disconnectors.
This means that the connections to the function block will be the same as for the single busbar
arrangement. The voltage selection parameter
260
Bus 1
Bus 2
Fuse
Fuse
VT
VT
Voltag
Line 1/2/3
e
V
Fuse
C
VT
arrangement with external voltage selection
V3PB1*
V3PB2*
V3PL1*
V3PL2*
BLOCK
BLKSYNCH
BLKSC
BLKENERG
BUS1_OP
BUS1_CL
BUS2_OP
BUS2_CL
LINE1_OP
LINE1_CL
LINE2_OP
LINE2_CL
VB1OK
VB1FF
VB2OK
189
VB2FF
VL1OK
VL1FF
289 VL2OK
VL2FF
STARTSYN
TSTSYNCH
TSTSC
TSTENERG
152
AENMODE
MENMODE
Line
CBConfig is set to No voltage sel .
1MRK 511 358-UUS A
SESRSYN (25)
SYNOK
AUTOSYOK
AUTOENOK
MANSYOK
MANENOK
TSTSYNOK
TSTAUTSY
TSTMANSY
TSTENOK
VSELFAIL
B1SEL
B2SEL
L1SEL
L2SEL
SYNPROGR
SYNFAIL
VOKSYN
VDIFFSYN
FRDIFSYN
FRDIFFOK
FRDERIVA
VOKSC
VDIFFSC
FRDIFFA
PHDIFFA
FRDIFFM
PHDIFFM
INADVCLS
VDIFFME
FRDIFFME
PHDIFFME
Vbus
VLine
MODEAEN
MODEMEN
ANSI10000094-1-en.vsd
Application manual
M12325-3 v8