ABB Relion 670 series, Technical Reference Manual, Page: 703 / 1232

12.4.4.3 Logic diagram
EXDU_BB
en04000546_ansi.vsd
VP_BB_DC
BB_DC_OP 89GREL
89GITL
BBGSOPTR
BBGSCLTR
89G_OP
89G_CL
BB_ES
AND
NOT
ANSI04000546 V1 EN
12.4.4.4 Input and output signals
Table 355: BB_ES (3) Input signals
Name Type Default Description
QC_OP BOOLEAN 0 Busbar grounding switch 89G is in open position
QC_CL BOOLEAN 0 Busbar grounding switch 89G is in closed position
BB_DC_OP BOOLEAN 0 All disconnectors on this busbar part are open
VP_BB_DC BOOLEAN 0 Status for all disconnectors on this busbar part are valid
EXDU_BB BOOLEAN 0 No transm error from bays with disc on this busbar part
Table 356: BB_ES (3) Output signals
Name Type Description
QCREL BOOLEAN Switching of 89G is allowed
QCITL BOOLEAN Switching of 89G is not allowed
BBESOPTR BOOLEAN 89G on this busbar part is in open position
BBESCLTR BOOLEAN 89G on this busbar part is in closed position
12.4.5 Interlocking for bus-section breaker A1A2_BS (3)
12.4.5.1 Introduction
The interlocking for bus-section breaker (A1A2_BS ,3) function is used for one bus-
section circuit breaker between section 1 and 2 according to figure
359 . The function
can be used for different busbars, which includes a bus-section circuit breaker.
1MRK505222-UUS C
Section 12
Control
697
Technical reference manual