ABB Relion 670 Series Applications Manual page 315

1MRK 511 358-UUS A
1289OPTR (bay 1)
1289OPTR (bay 2)
1289OPTR (bay n-1)
VP1289TR (bay 1)
VP1289TR (bay 2)
VP1289TR (bay n-1)
EXDU_12 (bay 1)
EXDU_12 (bay 2)
EXDU_12 (bay n-1)
ANSI04000481 V1 EN-US
Figure 129: Signals from any bays in bus-coupler bay n
If the busbar is divided by bus-section disconnectors into bus-sections, the signals BBTR are
connected in parallel - if both bus-section disconnectors are closed. So for the basic project-
specific logic for BBTR above, add this logic:
(WA1)A1
(WA2)B1
(WA7)C
ABC_LINE
ANSI04000482 V1 EN-US
Figure 130: Busbars divided by bus-section disconnectors (circuit breakers)
The following signals from each bus-section disconnector bay (A1A2_DC) are needed. For
B1B2_DC, corresponding signals from busbar B are used. The same type of module (A1A2_DC) is
used for different busbars, that is, for both bus-section disconnector A1A2_DC and B1B2_DC.
Signal
DCOPTR
VPDCTR
EXDU_DC
If the busbar is divided by bus-section circuit breakers, the signals from the bus-section coupler
bay (A1A2_BS), rather than the bus-section disconnector bay (A1A2_DC), have to be used. For
B1B2_BS, corresponding signals from busbar B are used. The same type of module (A1A2_BS) is
used for different busbars, that is, for both bus-section circuit breakers A1A2_BS and B1B2_BS.
Application manual
AND
. . .
. . .
AND
. . .
. . .
AND
. . .
. . .
Section 1
A1A2_DC(BS)
B1B2_DC(BS)
ABC_BC
The bus-section disconnector is open.
The switch status of bus-section disconnector DC is valid.
No transmission error from the bay that contains the above information.
BBTR_OP
VP_BBTR
EXDU_12
en04000481_ansi.vsd
Section 2
ABC_BC
ABC_LINE AB_TRAFO
A2
B2
C
en04000482_ansi.vsd
Section 13
Control
309