tPulse: Trip pulse duration. This setting must be larger than the critical impulse time of
circuit breakers to be tripped from the breaker failure protection. Typical setting is 200
ms.
3.7.8.3 Setting parameters
Table 106: CCRBRF (50BF) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base current
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
t2MPh 0.000 - 60.000 s 0.001 0.150 Time delay of back-up trip at multi-phase
pickup
tPulse 0.000 - 60.000 s 0.001 0.200 Trip pulse duration
Table 107: CCRBRF (50BF) Group settings (advanced)
Name
Values (Range) Unit Step Default Description
Pickup_BlkCont 5 - 200 %IB 1 20 Current for blocking of CB contact operation
in % of IBase
t3 0.000 - 60.000 s 0.001 0.030 Additional time delay to 27P2TDLY for a
second back-up trip
tCBAlarm 0.000 - 60.000 s 0.001 5.000 Time delay for CB faulty signal
3.7.9 Pole discrepancy protection CCRPLD (52PD)
Section 3 1MRK504116-UUS C
IED application
474
Application manual