10.2.4
Signals
Table 227:
SDDRFUF Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three phase group signal for current inputs
V3P
GROUP
SIGNAL
-
Three phase group signal for voltage inputs
BLOCK
BOOLEAN
0
Block of function
52a
BOOLEAN
0
Active when circuit breaker is closed
MCBOP
BOOLEAN
0
Active when external Miniature Circuit Breaker opens
protected voltage circuit
89b
BOOLEAN
0
Active when line disconnect switch is open
Table 228:
SDDRFUF Output signals
Name
Type
Description
BLKZ
BOOLEAN
Start of current and voltage controlled function
BLKV
BOOLEAN
General pickup
3PH
BOOLEAN
Three-phase pickup
DLD1PH
BOOLEAN
Dead line condition in at least one phase
DLD3PH
BOOLEAN
Dead line condition in all three phases
10.2.5
Settings
Table 229:
SDDRFUF Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Enabled
Disable/Enable Operation
OpModeSel
Disabled
V2I2
V0I0
V0I0 OR V2I2
V0I0 AND V2I2
OptimZsNs
-
-
V0I0
Operating mode selection
3V0PU
1 - 100
%VB
1
30
Pickup of residual overvoltage element in % of
VBase
3I0PU
1 - 100
%IB
1
10
Pickup of residual undercurrent element in % of
IBase
3V2PU
1 - 100
%VB
1
30
Pickup of negative sequence overvoltage
element in % of VBase
Table continues on next page
Section 10
1MRK 506 335-UUS A
Secondary system supervision
334
Technical manual
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