Functions
2.6 Circuit-Breaker Failure Protection 50BF
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
111
2.6.4
Information List
3912
50NBF PICKUP
1A
0.05 .. 20.00 A
0.10 A
50NBF Pickup neutral
current threshold
5A
0.25 .. 100.00 A
0.50 A
3913
T2StartCriteria
With exp. of T1
Parallel withT1
Parallel withT1
T2 Start Criteria
3921
End Flt. elem.
ON
OFF
OFF
End fault element
3922
EndFault Delay
0.00 .. 30.00 sec;
∞
2.00 sec
Trip delay of end fault
element
No.
Information
Type of In-
formation
Comments
1401
>50BF on
SP
>50BF: Switch on breaker fail prot.
1402
>50BF off
SP
>50BF: Switch off breaker fail prot.
1403
>BLOCK 50BF
SP
>BLOCK 50BF
1404
>50BF 3I0>
SP
>50BF use 3I0 threshold
1415
>50BF Start 3p
SP
>50BF: External start 3pole
1424
>50BFSTRTonlyT2
SP
>50BF: Start only delay time T2
1432
>50BF release
SP
>50BF: External release
1439
>50BF STARTw/oI
SP
>50BF: External start 3p (w/o current)
1440
BkrFailON/offBI
IntSP
Breaker failure prot. ON/OFF via BI
1451
50BF OFF
OUT
50BF is switched OFF
1452
50BF BLOCK
OUT
50BF is BLOCKED
1453
50BF ACTIVE
OUT
50BF is ACTIVE
1461
50BF Start
OUT
50BF Breaker failure protection started
1476
50BF LocTripABC
OUT
50BF Local trip - ABC
1493
50BF TripCBdef.
OUT
50BF Trip in case of defective CB
1494
50BF BusTrip
OUT
50BF Busbar trip
1495
50BF EndFltTrip
OUT
50BF Trip End fault element
Addr.
Parameter
C
Setting Options
Default Setting
Comments