Parameter
Values (Range)
Unit
Step
Default
Description
Zro A elimination
1=Not eliminated
2=Winding 1
3=Winding 2
4=Winding 1 and 2
1=Not eliminated
Elimination of the
zero-sequence cur-
rent
CT ratio Cor Wnd 1 0.40...4.00
0.01
1.00
CT ratio correction,
winding 1
CT ratio Cor Wnd 2 0.40...4.00
0.01
1.00
CT ratio correction,
winding 2
Table 489: TR2PTDF Non group settings (Advanced)
Parameter
Values (Range)
Unit
Step
Default
Description
Min winding tap
-36...36
1
36
The tap position
number resulting
the minimum num-
ber of effective
winding turns on
the side of the
transformer where
the tap changer is.
Max winding tap
-36...36
1
0
The tap position
number resulting
the maximum num-
ber of effective
winding turns on
the side of the
transformer where
the tap changer is.
Tap nominal
-36...36
1
18
The nominal posi-
tion of the tap
changer resulting
the default trans-
formation ratio of
the transformer (as
if there was no tap
changer)
Tapped winding
1=Not in use
2=Winding 1
3=Winding 2
1=Not in use
The winding where
the tap changer is
connected to
Step of tap
0.60...9.00
%
0.01
1.50
The percentage
change in voltage
corresponding one
step of the tap
changer
4.3.2.9
Monitored data
Table 490: TR2PTDF Monitored data
Name
Type
Values (Range)
Unit
Description
OPR_A
BOOLEAN
0=False
1=True
Operate phase A
OPR_B
BOOLEAN
0=False
1=True
Operate phase B
OPR_C
BOOLEAN
0=False
1=True
Operate phase C
Table continues on the next page
1MRS757644 H
Protection functions
620 series
Technical Manual
555
