Meas. mode /
application
Active or
reactive power
measurement in
3-wire 3-phase
network
L1
balanced load
L2
L3
Active or
reactive power
measurement in
3-wire 3-phase
network
L1
unbalanced load
L2
L3
Active power
measurement in
4-wire 3-phase
network
balanced load
L1
L2
L3
N
L1
L2
L3
Active or
N
reactive power
measurement in
4-wire 3-phase
network
unbalanced load
L1
L2
L3
N
2
5
8
1
3
2
5
8
1
3
7
9
2
5
8
1
3
2 5 8
11
1
3
4
6
2
5
8
11
1
3
4
6
u
u
u
x
x
x
X
X
X
k
l
k
U
U
U
K
L
K
Measuring inputs
Terminal allocations
3
2
5
8
1
k
l
L1
K
L
L2
L3
2 5
8
1
3
7
k
l
L1
K
L
k
L2
L3
K
2
5
8
1
3
k
l
L1
K
L
L2
L3
N
7
9
L1
L2
L3
N
7
9
l
k
l
L
K
L
3 single-pole insulated voltage transformer in the
high-voltage system
5
8
1
2
u
v
u
v
U
U
V
V
L1
K
L2
L3
9
2
5
8
u
v
u
v
U
V
U
V
L1
l
K
L2
L3
L
2
5
8
u
v
u
v
U
V
U
V
L1
K
L2
L3
N
2
5
8
11
1
3
4
6
k
l
k
K
L
K
3
k
l
L
1
3
7
9
k
l
L
k
l
K
L
1
3
l
k
L
7
9
l
k
l
L
K
L
13