ABB RELION REX640 Technical Manual page 662

Section 4
Protection functions
Table 601: TR3PTDF Non group settings (Basic)
Parameter
Operation
Current group 3 type
CT connection 1-2
CT connection 1-3
Phase Ref winding
Zro A elimination
Phase shift Wnd 1-2
Phase shift Wnd 1-3
Min winding tap
Max winding tap
Tap nominal
Tapped winding
Step of tap
CT ratio Cor Wnd 1
CT ratio Cor Wnd 2
CT ratio Cor 3
656
Values (Range) Unit
1=on
5=off
1=Not in use
2=Winding 3
3=Wnd 1 restraint
4=Wnd 2 restraint
1=Type 1
2=Type 2
1=Type 1
2=Type 2
2=Winding 1
3=Winding 2
4=Winding 3
1=Not eliminated
2=Winding 1
3=Winding 2
4=Winding 1 and 2
5=Winding 3
6=Winding 1 and 3
7=Winding 2 and 3
8=Winding 1, 2, 3
0.0...359.9 deg
0.0...359.9 deg
-36...36
-36...36
-36...36
1=Not in use
2=Winding 1
3=Winding 2
4=Winding 3
0.60...9.00 %
0.20...5.00
0.20...5.00
0.20...5.00
Step Default
1=on
2=Winding 3
1=Type 1
1=Type 1
2=Winding 1
1=Not eliminated
0.1 0.0
0.1 0.0
1 36
1 0
1 18
1=Not in use
0.01 1.50
0.01 1.00
0.01 1.00
0.01 1.00
1MRS759142 C
Description
Operation Off/On
Type of the third set/group of current
inputs
CT connection type consideration
between current groups 1 and 2
CT connection type consideration
between current groups 1 and 3
Reference winding for vector group
matching
Elimination of the zero-sequence current
Setting the phase shift between winding 1
and 2 in degrees
Setting the phase shift between winding 1
and 3 in degrees
The tap position number resulting the
minimum number of effective winding
turns on the side of the transformer where
the tap changer is.
The tap position number resulting the
maximum number of effective winding
turns on the side of the transformer where
the tap changer is.
The nominal position of the tap changer
resulting the default transformation ratio
of the transformer (as if there was no tap
changer)
The winding where the tap changer is
connected to
The percentage change in voltage
corresponding one step of the tap changer
CT ratio correction, winding 1
CT ratio correction, winding 2
CT ratio correction, current group 3
Technical Manual
REX640