ABB RELION 650 SERIES, Applications Manual

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10.3.6.1 Application
M13544-3 v6
The interlocking for bus-section disconnector (A1A2_DC, 3) function is used for one bus-section
disconnector between section 1 and 2 according to figure 68 . A1A2_DC (3) function can be used for
different busbars, which includes a bus-section disconnector.
WA1 (A1) WA2 (A2)
189G 289G
A1A2_DC
en04000492_ansi.vsd
52
ANSI04000492 V1 EN-US
Figure 68: Switchyard layout A1A2_DC (3)
M13542-4 v3
The signals from other bays connected to the module A1A2_DC are described below.
10.3.6.2 Signals in single breaker arrangement
M13542-6 v4
If the busbar is divided by bus-section disconnectors, the condition
no other disconnector
connected to the bus-section must be made by a project-specific logic.
The same type of module (A1A2_DC) is used for different busbars, that is, for both bus-section
disconnector A1A2_DC and B1B2_DC. But for B1B2_DC, corresponding signals from busbar B are
used.
en04000493_ansi.vsd
Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
ABC_LINE
ABC_BC
ABC_LINE
(WA1)A1
(WA2)B1
(WA7)C
C
B3
A3
AB_TRAFO AB_TRAFO
A2
B2
ANSI04000493 V1 EN-US
Figure 69: Busbars divided by bus-section disconnectors (circuit breakers)
The interlocking functionality in 650 series can not handle the transfer bus (WA7)C.
To derive the signals:
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 any bay that contains the above information.
1MRK 505 287-UUS B Section 10
Control
Busbar protection REB650 151
Application manual
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