8.9.4
Signals
Table 141:
NS2PTOC (46I2) Input signals
Name
Type
Default
Description
I3P
GROUP
SIGNAL
-
Group connection for neg seq.
BLOCK
BOOLEAN
0
Block of function
BLK1
BOOLEAN
0
Block of step 1
BLK2
BOOLEAN
0
Block of step 2
Table 142:
NS2PTOC (46I2) Output signals
Name
Type
Description
TRIP
BOOLEAN
Common trip signal
TRST1
BOOLEAN
Trip signal for step 1
TRST2
BOOLEAN
Trip sognal for step 2
PICKUP
BOOLEAN
Common start signal
PU_ST1
BOOLEAN
Pickup signal for step 1
PU_ST2
BOOLEAN
Pickup signal for step2
ALARM
BOOLEAN
Alarm signal
NSCURR
REAL
Negative sequence current in primary amps
8.9.5
Settings
Table 143:
NS2PTOC (46I2) Group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
Operation
Disabled
Enabled
-
-
Disabled
Disable/Enable Operation
tAlarm
0.00 - 6000.00
s
0.01
3.00
Time delay for alarm ( operated by pick up
signal) in seconds
OpStep1
Disabled
Enabled
-
-
Enabled
Enable execution of step 1
I2-1>
3 - 500
%IB
1
10
Step 1 Neg. Seq. Current pickup level, in % of
IBase
CurveType1
Definite
Inverse
-
-
Definite
Selection of definite or inverse time-characteri.
for step 1
t1
0.00 - 6000.00
s
0.01
10.00
Definite time delay for trip of step 1, in sec
tResetDef1
0.000 - 60.000
s
0.001
0.000
Time delay for reset of definite timer of step 1,
in sec
Table continues on next page
1MRK 502 048-UUS A
Section 8
Current protection
267
Technical manual
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