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10.1.3.2
Single circuit breaker with double busbar, external voltage selection
M12325-3 v8
Bus 1
Bus 2
Line
Fuse
VT
Fuse
VT
Fuse
VT
ANSI11000165-2-en.vsd
VBus
SMAI
SMAI
VLine
GRP_OFF
189
289
BKR1
SESRSYN (25)
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
VB2FF
VL1OK
VL1FF
VL2OK
VL2FF
STARTSYN
TSTSYNCH
TSTSC
TSTENERG
AENMODE
MENMODE
SYNOK
AUTOSYOK
AUTOENOK
MANSYOK
MANENOK
TSTSYNOK
TSTAUTSY
TSTMANSY
TSTENOK
VSELFAIL
B1SEL
B2SEL
L1SEL
L2SEL
SYNPROGR
SYNFAIL
FRDIFSYN
FRDERIVA
VOKSC
VDIFFSC
FRDIFFA
PHDIFFA
FRDIFFM
PHDIFFM
INADVCLS
VDIFFME
FRDIFFME
PHDIFFME
Vbus
VLine
MODEAEN
MODEMEN
52
ANSI11000165 V2 EN-US
Figure 46: Connection of SESRSYN (25) function block in a single breaker, double busbar
arrangement with external voltage selection
In this type of arrangement no internal voltage selection is required. The voltage selection is made
by external relays typically connected according to figure
. 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
CBConfig is set to No voltage sel.
Section 10
1MRK 505 287-UUS B
Control
122
Busbar protection REB650
Application manual
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