Interlocking For Bus-Section Disconnector A1A2_Dc - ABB REC670 Applications Manual

1MRK 511 401-UEN A
14.4.6
14.4.6.1
14.4.6.2
Bay control REC670 2.2 IEC
Application manual

Interlocking for bus-section disconnector A1A2_DC

Application
The interlocking for bus-section disconnector (A1A2_DC) function is used for one
bus-section disconnector between section 1 and 2 according to figure 146.
A1A2_DC function can be used for different busbars, which includes a bus-section
disconnector.
WA1 (A1)
QC1
IEC04000492 V1 EN-US
Figure 146: Switchyard layout A1A2_DC
The signals from other bays connected to the module A1A2_DC are described
below.
Signals in single breaker arrangement
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.
Section 1
(WA1)A1
(WA2)B1
(WA7)C
ABC_LINE
IEC04000493 V1 EN-US
Figure 147: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
QB
WA2 (A2)
A1A2_DC
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
Section 14
QC2
en04000492.vsd
Section 2 A2
B2
ABC_BC
AB_TRAFO
en04000493.vsd
Control
IP14159-1 v2
M13544-3 v7
M13542-4 v4
M13542-6 v5
A3
B3
C
363