Table 67: CCRBRF (50BF) Output signals
Name Type Description
TRBU BOOLEAN Back-up trip by breaker failure protection function
TRRET BOOLEAN Retrip by breaker failure protection function
6.7.5 Settings
Table 68: CCRBRF (50BF) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
FunctionMode Current
Contact
Current&Contact
-
- Current Detection principle for back-up trip
BuTripMode 2 out of 4
1 out of 3
1 out of 4
-
- 1 out of 3 Back-up trip mode
RetripMode Retrip Off
CB Pos Check
No CBPos Check
-
- Retrip Off Operation mode of re-trip logic
Pickup_PH 5 - 200 %IB 1 10 Phase current pickup in % of IBase
Pickup_N 2 - 200 %IB 1 10 Operate residual current level in % of IBase
t1 0.000 - 60.000 s 0.001 0.000 Time delay of re-trip
t2 0.000 - 60.000 s 0.001 0.150 Time delay of back-up trip
Table 69: CCRBRF (50BF) Group settings (advanced)
Name
Values (Range) Unit Step Default Description
Pickup_BlkCont 5 - 200 %IB 1 20 Current for blocking of 52a operation in % of
Ibase
Table 70: CCRBRF (50BF) Non group settings (basic)
Name
Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 6 - 1 1 Selection of one of the Global Base Value
groups
Section 6 1MRK 511 287-UUS A
Current protection
138
Technical manual
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