User manual

26
UMG 96RM-P/-CBM
Direction of the current
The current direction can be individually corrected
on the device or via the serial interfaces for each phase.
In the case of incorrect connection, the current trans-
former does not need to be subsequently reconnected.
c
Current transformer connections!
The secondary connection of the current
transformer must be short-circuited on this
before the current feed to the UMG 96RM-
P/-CBM is disconnected!
If a test switch, which automatically short-
circuits the secondary wires of the current
transformer, is available then it is sufficient
to set this to the „Test“ position insofar
as the short-circuiting device has been
checked beforehand.
c
Open-circuit current transformers!
High voltage spikes that are dangerous to
touch can occur on current transformers
that are driven with open-circuit secondary
windings!
With „safe open-circuit current trans-
formers“ the winding insulation is rated
such that the current transformer can be
driven open. However, even these current
transformers are dangerous to touch when
they are driven open-circuit.
c
Caution!
The UMG96RM is only approved for a
current measurement using the current
transformer.