ABB RELION 620 Series Technical Manual page 545

1MAC504801-IB E
5.2.6
5.2.7
Table 392: 50BF Non group settings
Parameter Values (Range)
Operation 1=enable
5=disable
Current value 0.05...2.00
Current value Res 0.05...1.00
CB failure trip mode 1=2 out of 4
2=1 out of 3
3=1 out of 4
CB failure mode 1=Current
2=Breaker status
3=Both
CB fail retrip mode 1=Disabled
2=Without Check
3=Current check
Retrip time 0...60000
CB failure delay 0...60000
Table continues on next page
620 series ANSI
Technical Manual
Signals
Table 390: 50BF Input signals
Name Type
I_A SIGNAL
I_B SIGNAL
I_C SIGNAL
I_N SIGNAL
BLOCK BOOLEAN
PICKUP BOOLEAN
POSCLOSE BOOLEAN
CB_FAULT BOOLEAN
Table 391: 50BF Output signals
Name Type
CB_FAULT_AL BOOLEAN
TRBU BOOLEAN
TRRET BOOLEAN
Settings
Unit Step
xIn 0.05
xIn 0.05
ms 10
ms 10
Protection-related functions
Default Description
0 Phase A current
0 Phase B current
0 Phase C current
0 Ground current
0=False Block CBFP operation
0=False CBFP pickup command
0=False CB in closed position
0=False CB faulty and unable to trip
Description
Delayed CB failure alarm
Backup trip
Retrip
Default Description
1=enable Operation Disable / Enable
0.30 Operating phase current
0.30 Operating residual current
2=1 out of 3 Backup trip current check mode
1=Current Operating mode of function
1=Disabled Operating mode of retrip logic
20 Delay timer for retrip
150 Delay timer for backup trip
Section 5
539