26
UMG 508
Total current measurement
If the current is measured using two current
converters, the total transfer ratio of the cur-
rent converters must be programmed in the
UMG508.
Illu. Example, current measurement using a total
current converter.
Example
The current measurement takes place using
two current converters. Both current conver-
ters have a transfer ratio of 1000/5A. The total
measurement is carried out with a 5+5/5A total
current converter.
The UMG508 must then be set as follows:
Primary current: 1000A + 1000A = 2000A
Secondary current:
5A
UMG
S
2
I
S
1
P
1
P
2
Einspeisung 1
Supply 1
Einspeisung 2
Supply 2
1P
1
1P
2
(K)
(L)
(k)
(l)
1S
2
1S
1
1S
1
1S
2
2S
1
2S
2
2S
1
2S
2
(k)
(l)
(K)
(L)
2P
1
2P
2
Verbraucher A
Consumer A
Verbraucher B
Consumer B
