ABB Relion 670 Series Applications Manual page 106

Section 6
Differential protection
Table 13:
Primary equipment
Normally
Open
auxiliary
contact
status
("closed" or
"a" contact)
open
open
closed
closed
N.O.
N.C.
IEC06000084 V1 EN-US
Figure 43:
100
Treatment of primary object auxiliary contact status within BBP in REB670
Status in busbar
protection
Normally when
Closed "Scheme 1
auxiliary RADSS"
contact is selected
status
("open" or
"b" contact)
open closed
closed open
open closed
closed closed
BBP
input „closed"
input „open"
current
assignment
Scheme1_RADSS
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Alarm facility
when Alarm after
"Scheme 2 settable time
INX" delay
is selected
Last yes
position
saved
open no
closed no
closed yes
arcing possible
closed
open
1
0
1)
1
0
1
0
1) disconnector supervision running
1MRK 505 370-UUS Rev. K
Information visible on
local HMI
intermediate_00
open
closed
badState_11
1)
en06000084.vsd
Busbar protection REB670
Application manual