ABB Relion 670 Series Applications Manual page 357

1MRK 511 401-UUS F
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
14.4.7 Interlocking for busbar grounding switch BB_ES (3)
14.4.7.1 Application
The interlocking for busbar grounding switch (BB_ES, 3) function is used for one busbar grounding
switch on any busbar parts according to figure 163.
ANSI04000504 V1 EN-US
Figure 163: Switchyard layout BB_ES (3)
The signals from other bays connected to the module BB_ES are described below.
14.4.7.2 Signals in single breaker arrangement
The busbar grounding switch is only allowed to operate if all disconnectors of the bus-section are
open.
(WA1)A1
(WA2)B1
(WA7)C
ANSI04000505 V1 EN-US
Figure 164: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Bay control REC670
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.
89G
en04000504.vsd
Section 1
BB_ES ABC_BC
ABC_LINE
© Copyright 2017 ABB. All rights reserved
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
A2
B2
C
BB_ES
en04000505_ansi.vsd
Section 14
Control
IP14164-1 v4
M15015-3 v7
M15053-4 v4
M15053-6 v5
351