ABB RET670 - Interlocking for Busbar Grounding Switch BB_ES (3)

en04000503_ansi.vsd
Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
BH_LINE
(WA1)A1
(WA2)B1 B2
A2
BH_LINE BH_LINE BH_LINE
ANSI04000503 V1 EN
Figure 264: Busbars divided by bus-section disconnectors (circuit breakers)
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.
3.12.3.7 Interlocking for busbar grounding switch BB_ES (3)
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 265.
89G
en04000504.vsd
ANSI04000504 V1 EN
Figure 265: Switchyard layout BB_ES (3)
The signals from other bays connected to the module BB_ES are described below.
Signals in single breaker arrangement
The busbar grounding switch is only allowed to operate if all disconnectors of the bus-
section are open.
1MRK504116-UUS C Section 3
IED application
641
Application manual