janitza UMG 509, Operation Manual And Technical Data

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UMG 509
Product description
Proper use
The UMG 509 is intended for measurement
in accordance with EN61000-4-30 in building
installations, on distribution units, circuit breakers and
busbar trunking systems.
Measured voltages and measured currents must derive
from the same network.
The UMG 509 is suitable for integration into fixed
and weatherproof switch panels. Conductive switch
panels must be earthed.
The UMG 509 can be used in 2, 3 and 4-conductor
networks and in TN and TT networks.
The current measurement inputs 1–4 of the UMG 509
are connected via external ../1A or ../5A current
transformers.
Measurements in medium and high-voltage networks are
always performed via current and voltage transformers.
The measurement results can be displayed, saved
and read out and further processed via the interfaces
(Ethernet, Modbus, Profibus).
The UMG 509 can be used in industrial and domestic
settings.
By continuously monitoring the residual currents
(RCM) of an electrical system via the inputs I5 and I6,
warning pulses can be triggered if a response threshold
is exceeded. Using these, the system operator can
be alarmed before a protective equipment reacts.
The UMG 509 does not provide protection against
electric shock!
The residual current monitoring is performed via
the current measurement inputs I5 and I6 via an
external residual current transformer with a rated current
of 30 mA.
m
Residual current monitoring monitors
residual currents via external current
transformers and can trigger a warning
impulse when a response threshold
is exceeded. The device is thus
not
an independent protective device!