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UMG 103-CBM
31
INFORMATION
The device only allows the setting of
one current
transformer ratio
for
all phases!
You can configure
current transformer ratios
conveniently via the GridVis
®
software.
WARNING
Risk of injury or damage to the device due to
electrical voltage and improper connection!
High measuring currents can cause temperatures
of up to 80 °C (176 °F) at the connections.
Use wiring designed for an operating tempera-
ture of up to 80 °C (176 °F)!
S1
S2
S1
S2
Fig.: Current measurement in a
single-phase 3-conductor system
S1
S2
S1
S2
S1
S2
Fig.: Current measurement via current transformer
in a three-phase 4-conductor system
Load
Load
7.5.1
Connection variants for current
measurement
Fig.: Current measurement via 2 current
transformers in a three-phase 4-conductor
system
ATTENTION
Material damage due to disregard of the con-
nection instructions during current measure-
ment.
Failure to comply with the connection requirements
of your device can result in the permissible current
measurement range being exceeded. This can lead
to damage or destruction of your device or your
system and thus to material damage!
·
Use current transformers for current mea-
surement! The device only allows current
measurement via current transformers!
·
Observe the connection conditions for the
current measurement inputs of your device
and the current transformers!
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