ABB RELION 670 Series Technical Manual page 532

Generator protection
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Section 8
Current protection
Table 257: CCRBRF (50BF) Output signals
Name
TRBU
TRBU2
TRRET
TRRET_A
TRRET_B
TRRET_C
CBALARM
8.8.5
Settings
Table 258: CCRBRF (50BF) Group settings (basic)
Name
Values (Range)
Operation
Disabled
Enabled
FunctionMode
Current
Contact
Current/Contact
BuTripMode
2 out of 4
1 out of 3
1 out of 4
RetripMode
Retrip Off
CB Pos Check
No CBPos Check
Pickup_PH
5 - 200
Pickup_N
2 - 200
t1
0.000 - 60.000
t2
0.000 - 60.000
t2MPh
0.000 - 60.000
tPulse
0.000 - 60.000
Table 259: CCRBRF (50BF) Group settings (advanced)
Name
Values (Range)
Pickup_BlkCont
5 - 200
t3
0.000 - 60.000
tCBAlarm
0.000 - 60.000
526
Type
Description
BOOLEAN
Back-up trip by breaker failure protection function
BOOLEAN
Second back-up trip by breaker failure protection function
BOOLEAN
Retrip by breaker failure protection function
BOOLEAN
Retrip by breaker failure protection function phase A
BOOLEAN
Retrip by breaker failure protection function phase B
BOOLEAN
Retrip by breaker failure protection function phase C
BOOLEAN
Alarm for faulty circuit breaker
Unit
Step
-
-
-
-
-
-
-
-
%IB
1
%IB
1
s
0.001
s
0.001
s
0.001
s
0.001
Unit
Step
%IB
1
s
0.001
s
0.001
Default
Description
Disabled
Operation Disabled/Enabled
Current
Detection for trip based on Current/
Contact/Current&Contact
1 out of 3
Back-up trip modes: 2 out of 4 or 1 out of 3
or 1 out of 4
Retrip Off
Oper mode of re-trip logic: OFF/CB Pos
Check/No CB Pos Check
10
Phase current pickup in % of IBase
10
Operate residual current level in % of IBase
0.000
Time delay of re-trip
0.150
Time delay of back-up trip
0.150
Time delay of back-up trip at multi-phase
pickup
0.200
Trip pulse duration
Default
Description
20
I> in % of IBase block operation using
Function Mode Contact
0.030
Additional time delay to 27P2TDLY for a
second back-up trip
5.000
Time delay for alarm when faulty circuit
breaker indicated
1MRK 502 066-UUS B
PID-3562-OUTPUTSIGNALS v5
PID-3562-SETTINGS v5
Technical manual

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