Interlocking For Busbar Earthing Switch Bb_Es - ABB REL670 2.2 IEC Applications Manual

Section 15
Control
15.4.7
15.4.7.1
15.4.7.2
682
Section 1
(WA1)A1
(WA2)B1
BH_LINE
IEC04000503 V1 EN-US
Figure 349: 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.

Interlocking for busbar earthing switch BB_ES

Application
The interlocking for busbar earthing switch (BB_ES) function is used for one
busbar earthing switch on any busbar parts according to figure 350.
QC
en04000504.vsd
IEC04000504 V1 EN-US
Figure 350: Switchyard layout BB_ES
The signals from other bays connected to the module BB_ES are described below.
Signals in single breaker arrangement
The busbar earthing switch is only allowed to operate if all disconnectors of the
bus-section are open.
A1A2_DC(BS)
B1B2_DC(BS)
BH_LINE
1MRK 506 369-UEN B
Section 2
A2
B2
BH_LINE BH_LINE
en04000503.vsd
Line distance protection REL670 2.2 IEC
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