Interlocking For Bus-Section Disconnector A1A2_Dc (3) - ABB REL650 Applications Manual

Section 11
Control
11.5.6
11.5.6.1
11.5.6.2
360

Interlocking for bus-section disconnector A1A2_DC (3)

Application
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 164. A1A2_DC (3)
function can be used for different busbars, which includes a bus-section disconnector.
WA1 (A1)
189G
ANSI04000492 V1 EN
Figure 164: Switchyard layout A1A2_DC (3)
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
A1A2_DC(BS)
B1B2_DC(BS)
ABC_LINE AB_TRAFO
ANSI04000493 V1 EN
Figure 165: Busbars divided by bus-section disconnectors (circuit breakers)
WA2 (A2)
52
A1A2_DC
en04000492_ansi.vsd
Section 2 A2
B2
ABC_BC
ABC_LINE
1MRK 506 334-UUS A
289G
A3
B3
C
AB_TRAFO
en04000493_ansi.vsd
Application manual