49
English
Measuring inputs
System /
application
Terminals
4-wire
3-phase
asymmetric
load
4-wire
3-phase
asymmetric
load,
Open Y
connection
L1
L2
L3
N
5
11
8
2
1
3
4
6
7
9
L1
L2
L3
k
l
K
L
k
l
K
L
k
l
K
L
N
5
11
8
2
1
3
4
6
7
9
L1
L2
L3
k
l
K
L
k
l
K
L
k
l
K
L
N
x
x
x
u
u
u
X
X
X
U
U
U
5
11
8
2
1
3
4
6
7
9
3 single-pole insulated voltage transformers
in high-voltage system
L1
L2
L3
k
l
K
L
k
l
K
L
k
l
K
L
N
8
2
1
3
4
6
7
9
11
L1
L2
L3
k
l
K
L
k
l
K
L
k
l
K
L
x
x
u
u
X
U
2
4
3
1
5
6
7
8
9
11
X
U
L
Low-voltage system
2 single-pole insulated voltage transformers
in high-voltage system
N
–180
–90
0
90
180
outgoing
Output
ϕ
incoming
outgoing
ind.
ind.
ind.
ind.
cap.
cap.
LF
QF
PF
Difference between PF, QF and LF
Fig. 7. Active power PF ––––, reactive power QF -----,
power factor LF – · – · – .