ABB Relion 650 Series Applications Manual page 147

1MRK 505 287-UUS B
10.3.4 Interlocking for busbar grounding switch BB_ES (3)
10.3.4.1 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 55.
ANSI04000504 V1 EN-US
Figure 55: Switchyard layout BB_ES (3)
The signals from other bays connected to the module BB_ES are described below.
10.3.4.2 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 56: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BB_DC_OP
VP_BB_DC
EXDU_BB
Busbar protection REB650
Application manual
89G
en04000504.vsd
Section 1
BB_ES ABC_BC
ABC_LINE
The interlocking functionality in 650 series cannot handle the transfer bus (WA7)C.
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.
© Copyright 2013 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 10
Control
IP14164-1 v4
M15015-3 v6
M15053-4 v3
M15053-6 v4
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