Siemens SIPROTEC 7SD80 User Manual

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

Siemens SIPROTEC 7SD80 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SD80
Category	Protection Device
Language	English