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9.1.4
Signals
Table 149:
CCSRDIF (87) Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Three phase group signal for current inputs
IREF
GROUP
SIGNAL
-
Group signal for current reference
BLOCK
BOOLEAN
0
Block of function
Table 150:
CCSRDIF (87) Output signals
Name
Type
Description
FAIL
BOOLEAN
Detection of current circuit failure
ALARM
BOOLEAN
Alarm for current circuit failure
9.1.5
Settings
Table 151:
CCSRDIF (87) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Disabled
Disable/Enable Operation
IMinOp
5 - 200
%IB
1
20
Minimum operate current differential pickup in
% of IBase
Table 152:
CCSRDIF (87) Group settings (advanced)
Name
Values (Range)
Unit
Step
Default
Description
Pickup_Block
5 - 500
%IB
1
150
Block of the function at high phase current, in %
of IBase
Table 153:
CCSRDIF (87) 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 9
1MRK 511 287-UUS A
Secondary system supervision
204
Technical manual
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