15.1.3.2
Single circuit breaker with double busbar, external voltage selection
M12325-3 v8
Line
Voltag
e
1/2/3
bus Voltage
Bus 1
Bus 2
189
289
Line
Fuse
VT
Fuse
VT
Fuse
VT
152
ANSI10000094-1-en.vsd
VREF1
VA/VB/
V
C
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
VOKSYN
VDIFFSYN
FRDIFSYN
FRDIFFOK
FRDERIVA
VOKSC
VDIFFSC
FRDIFFA
PHDIFFA
FRDIFFM
PHDIFFM
INADVCLS
VDIFFME
FRDIFFME
PHDIFFME
Vbus
VLine
MODEAEN
MODEMEN
ANSI10000094 V1 EN-US
Figure 309:
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 15
1MRK 504 163-UUS A
Control
686
Transformer protection RET670 2.2 ANSI
Application manual
Summary of Contents for RELION RET670
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