Distance Relay Settings
GARD 8000 Distance Relay
RFL Electronics Inc.
7.6
BREAKER FAILURE
Description Range
Units
Step
Default
Trip output seal-in
Enables trip seal for breaker failure relay trips
No - Yes
-
1
No
Breaker opening fail time delay
Time following breaker open command until fail to open
condition is declared
0.02 - 5
s
0.01
0.02
Breaker closing fail time delay
Time following breaker close command until fail to close
condition is declared
0.02 - 5
s
0.01
0.02
Manual close synch check supervision
Enables synchro-check supervision of manual breaker close
command
No - Yes
-
1
No
50BF Breaker failure enable
Enables breaker failure function
No - Yes
-
1
No
Single phase pickup
Pick up level on per phase basis for single pole trip
0.10 – 12
A
0.01
1
Three phase pickup
Pickup level on per phase basis for three pole trip
0.10 - 12
A
0.01
1
1 Pole BF delay
Single pole breaker failure trip delay
0.05 - 2
s
0.01
0.5
3 Pole BF delay
Three pole breaker failure trip delay
0.05 - 2
s
0.01
0.5
1 Pole retrip delay
Time delay for single pole re-trip breaker failure function.
0.05 - 2
s
0.01
0.5
3 Pole retrip delay
Time delay for three pole re-trip breaker failure function.
0.05 - 2
s
0.01
0.5
Remote open breaker detection enable
Enables loss-of-load function
No - Yes
-
1
No
Remote open breaker time delay
Time delay for loss-of-load trip
0 - 2000
ms
1
0
Detection by capacitive current
For long lines where there is sufficient capacitive line charging
current, this current can be used to supervise the loss-of-load
function. In that case, use the setting ‘Yes’
No - Yes
-
1
No
Min current level
Minimum current level for line charging current.
When the measured current is below this value, the
breaker pole is determined to be open.
0 - 5
A
0.01
0.75
July 21, 2009
7-27
973.334.3100
