ABB Relion REC670 - Interlocking for Busbar Earthing Switch BB_ES; Application; Signals in Single Breaker Arrangement

The project-specific logic is the same as for the logic for the double-breaker configuration.
Signal
S1DC_OP All disconnectors on bus-section 1 are open.
S2DC_OP All disconnectors on bus-section 2 are open.
VPS1_DC The switch status of disconnectors on bus-section 1 is valid.
VPS2_DC The switch status of disconnectors on bus-section 2 is valid.
EXDU_BB No transmission error from breaker and a half (BH) that contains the above
information.
13.4.7 Interlocking for busbar earthing switch BB_ES
IP14164-1 v4
13.4.7.1 Application
M15015-3 v7
The interlocking for busbar earthing switch (BB_ES) function is used for one busbar earthing
switch on any busbar parts according to figure
139.
QC
en04000504.vsd
IEC04000504 V1 EN-US
Figure 139: Switchyard layout BB_ES
M15053-4 v4
The signals from other bays connected to the module BB_ES are described below.
13.4.7.2 Signals in single breaker arrangement
M15053-6 v5
The busbar earthing switch is only allowed to operate if all disconnectors of the bus-section
are open.
Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
BB_ES
ABC_LINE
(WA1)A1
(WA2)B1
(WA7)C C
B2
A2
en04000505.vsd
BB_ESABC_BC
IEC04000505 V1 EN-US
Figure 140: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BB_DC_OP All disconnectors on this part of the busbar are open.
VP_BB_DC The switch status of all disconnector on this part of the busbar is valid.
EXDU_BB No transmission error from any bay containing the above information.
1MRK 511 358-UEN A Section 13
Control
289
Application manual