24
UMG 104
m
c
c
Current measurement
The UMG104 is designed for the connection of
current transformers with secondary currents
of ../1A and ../5A. Only alternating currents,
not direct currents, can be measured.
Each current measurement input can be
permanently loaded with 6A or for 1 second
with 100 A.
Earthing current transformers
If a connection is provided for earthing
the secondary winding, this must be
connected with earth.
Fig. 24.1 Connection example, current
measurement via current transformers.
Important!
The UMG104 is not suitable for the
measurement of direct voltages.
Attention!
The current inputs are live.
For the inputs L4 and I4 are no con-
nection schemes required.
C
Loads
S1 S2
S2
S1
L3
L1
L2
S2
S1
S1
S2
N
Summary of Contents for UMG 104
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