Interlocking For Busbar Earthing Switch Bb_Es; Application; Signals In Single Breaker Arrangement - ABB Relion REC670 Applications Manual

1MRK 511 358-UEN A
The project-specific logic is the same as for the logic for the double-breaker configuration.
Signal
S1DC_OP
S2DC_OP
VPS1_DC
VPS2_DC
EXDU_BB
13.4.7

Interlocking for busbar earthing switch BB_ES

13.4.7.1

Application

The interlocking for busbar earthing switch (BB_ES) function is used for one busbar earthing
switch on any busbar parts according to figure 139.
IEC04000504 V1 EN-US
Figure 139: Switchyard layout BB_ES
The signals from other bays connected to the module BB_ES are described below.
13.4.7.2

Signals in single breaker arrangement

The busbar earthing switch is only allowed to operate if all disconnectors of the bus-section
are open.
(WA1)A1
(WA2)B1
(WA7)C
IEC04000505 V1 EN-US
Figure 140: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BB_DC_OP
VP_BB_DC
EXDU_BB
Application manual
All disconnectors on bus-section 1 are open.
All disconnectors on bus-section 2 are open.
The switch status of disconnectors on bus-section 1 is valid.
The switch status of disconnectors on bus-section 2 is valid.
No transmission error from breaker and a half (BH) that contains the above
information.
QC
en04000504.vsd
Section 1
BB_ES ABC_BC
ABC_LINE
All disconnectors on this part of the busbar are open.
The switch status of all disconnector on this part of the busbar is valid.
No transmission error from any bay containing the above information.
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
Section 13
Control
IP14164-1 v4
M15015-3 v7
M15053-4 v4
M15053-6 v5
A2
B2
C
BB_ES
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