ABB Relion 670 Series Applications Manual page 390
Bay control
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Also See for Relion 670 Series:
- Technical manual (1432 pages) ,
- Technical reference manual (1232 pages) ,
- Applications manual (944 pages)
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Section 15
Control
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
15.4.7
Interlocking for busbar earthing switch BB_ES
15.4.7.1
Application
The interlocking for busbar earthing switch (BB_ES) function is used for one busbar earthing
switch on any busbar parts according to figure 192.
IEC04000504 V1 EN-US
Figure 192: Switchyard layout BB_ES
The signals from other bays connected to the module BB_ES are described below.
15.4.7.2
Signals in single breaker arrangement
The busbar earthing switch is only allowed to operate if all disconnectors of the bus-section
are open.
(WA1)A1
(WA2)B1
(WA7)C
IEC04000505 V1 EN-US
Figure 193: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BB_DC_OP
VP_BB_DC
EXDU_BB
384
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.
QC
en04000504.vsd
Section 1
BB_ES
ABC_BC
ABC_LINE
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 2017 Hitachi Power Grids. All rights reserved
Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
1MRK 511 401-UEN Rev. K
IP14164-1 v4
M15015-3 v7
M15053-4 v4
M15053-6 v5
A2
B2
C
BB_ES
en04000505.vsd
Bay control REC670
Application manual
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