Line Reactors - Siemens SINAMICS DCM Operating Instructions Manual

Connecting

6.6 Line reactors

6.6 Line reactors
Line reactors are obtained from Catalog LV60.
The line impedance, with line reactors factored in, should be between 4 and 10% of the
short-circuit voltage.
Line inductances always need to be provided in the infeed in order to limit voltage dips and
ensure that the SINAMICS DCM functions correctly. In the most straightforward situations
this can be done by using a 4% line reactor.
The only situations in which a line reactor is not required are when the converter is supplied
as the only load by means of a separate transformer winding (converter transformer adapted
to the power level).
Where several converters are used on a transformer winding, line reactors must be used
upstream of every converter.
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Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
SINAMICS DCM DC Converter