Total current measurement
If the current measurement is done via two current
transformers, the overall transformation ratio
of the current transformers must be programmed into
the UMG 96RM-E.
Example: The current is measured via two current
transformers. Both current transformers have
a transformation ratio of 1000/5A. The total measurement
is done using a total current transformer 5+5/5A.
The UMG 96RM-E must then be setup as follows:
Primary current: 1000A + 1000A = 2000A
Secondary current: 5A
Fig. Current measurment using 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
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