janitza UMG 96RM-P - Page 31

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UMG 96RM-P/-CBM
Total current measurement
If the current measurement takes place via two current
transformers, the total transformer ratio of the current
transformer must be programmed in the UMG 96RM-
P/-CBM.
Example: The current measurement takes place via two
current transformers. Both current transformers have
a transformer ratio of 1000/5 A. The total measurement
is performed with a 5+5/5 A total current transformer.
The UMG 96RM-P/-CBM must then be set as follows:
Primary current: 1000 A + 1000 A = 2000 A
Secondary current: 5 A
Fig. Current measurement via a total current transformer
(example).
UMG
S2
I
S
1
P1
P2
Einspeisung 1
Supply 1
Einspeisung 2
Supply 2
1P1
1P2
(K)
(L)
(k)
(l)
1S
2
1S1
1S1 1S2 2S1 2S2
2S1
2S2
(k)
(l)
(K)
(L)
2P
1
2P2
Verbraucher A
Consumer A
Verbraucher B
Consumer B