9
Direct measure-
ment in a 3-wire
network
b)
Semi-indirect
measurement
in a 3-wire
network
L1
L2
L3
18
19
20
21
23 22
24
25
26
27
5
6
7
8
9
11
ND20LITE
3
4
2
12
13
14
15
17 16
1
B
A
GNDI
RS 485
AL1
+
WYimp
Zasilanie
Supply
OU
pulse
18
19
20
21
23 22
24
25
26
27
5
6
7
8
9
11
ND20LITE
3
4
2
12
13
14
15
17 16
1
L1
L2
L3
S
1
S
2
P
1
2
S
1
S
2
P
1
P
2
P
B
A
GNDI
RS 485
AL1
+
WYimp
Zasilanie
Supply
OU
pulse
Содержание ND20LITE
Страница 2: ...2 ...
Страница 4: ...4 ...
Страница 18: ...18 6 4 Operating modes Fig 6 Operating modes of the ND20LITE meter 7 ...
Страница 27: ...27 a n on b n off ...
Страница 63: ...63 ...