ABB RELION REX640 Technical Manual page 658

Protection and control
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Protection functions
Vector group of
the transformer
Table continues on the next page
658
Winding 1 type
Yz11
Y
YNz11
YN
YNzn11
YN
Yzn11
Y
Zy1
Z
Zyn1
Z
ZNyn1
ZN
ZNy1
ZN
Zy5
Z
Zyn5
Z
ZNyn5
ZN
ZNy5
ZN
Zy7
Z
Zyn7
Z
ZNyn7
ZN
ZNy7
ZN
Zy11
Z
Zyn11
Z
ZNyn11
ZN
ZNy11
ZN
Dz0
D
Dzn0
D
Dz2
D
Dzn2
D
Dz4
D
Dzn4
D
Dz6
D
Dzn6
D
Dz8
D
Dzn8
D
Dz10
D
Dzn10
D
Zd0
Z
ZNd0
ZN
Zd2
Z
ZNd2
ZN
Zd4
Z
Winding 2 type
Phase shift
z
z
zn
zn
y
yn
yn
y
y
yn
yn
y
y
yn
yn
y
y
yn
yn
y
z
zn
z
zn
z
zn
z
zn
z
zn
z
zn
d
d
d
d
d
1MRS759142 F
Zero sequence
current
elimination
11
Not needed
11
(Automatic)
11
LV side
11
(Automatic)
1
Not needed
1
(Automatic)
1
HV side
1
(Automatic)
5
Not needed
5
(Automatic)
5
HV side
5
(Automatic)
7
Not needed
7
(Automatic)
7
HV side
7
(Automatic)
11
Not needed
11
(Automatic)
11
HV side
11
(Automatic)
0
Not needed
0
LV side
2
Not needed
2
(Automatic)
4
Not needed
4
(Automatic)
6
Not needed
6
LV side
8
Not needed
8
(Automatic)
10
Not needed
10
(Automatic)
0
Not needed
0
HV side
2
Not needed
2
(Automatic)
4
Not needed
REX640
Technical Manual

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