Operation On A Transformer; Safety Information - Siemens SINAMICS S120 Engineering Manual

1 Engineering SINAMICS S120 Booksize
1.3

Operation on a transformer

1.3.1

Safety information

Electric shock or fire due to overcurrent protective devices that trip too late
or not at all
Overcurrent protective devices that trip too late or not all can cause electric shock
or fire.
WARNING
Destruction or damage to additional loads as a result of undesirable line
harmonics
Line harmonics can occur if line filters that differ from those listed in the catalogs
and manuals are used. These can destroy or damage other loads connected to
NOTICE
the line supply. Conformance with IEC 61800-3 is only confirmed in conjunction
with the assigned line filters.
Destruction or damage to additional loads when incorrectly connected
Other loads can be destroyed or damaged when incorrectly connecting the line
filter.
NOTICE
If a transformer is used for Booksize Line Modules, this does not replace the
Note
external line reactor or the Active Interface Module.
Engineering manual S120 Booksize
Entry-ID: 109808992, V1.0,
•
In the case of a conductor-conductor or conductor-ground short-
circuit, ensure that the short-circuit current at the point where the
converter is connected to the line supply corresponds as a
minimum to the requirements of the protective device used.
•
The short-circuit current must not exceed the SCCR or the ICC of
the converter and the interrupting capacity of the protective
equipment.
•
You must additionally use a residual current device (RCD) if, for a
conductor-ground short circuit, the required short-circuit current is
not reached. Especially for TT systems, frequently the required
short-circuit current cannot be reached as a result of an
excessively high loop impedance.
•
Only use the line filter specifically assigned to the device.
•
Connect additional loads upstream of the SINAMICS line filter (if
required, via a separate line filter).
04/2022
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