SIEMENS
7
Options
01/28/2015
© Siemens AG 2015
20
SINAMICS GM150 SINAMICS SM150
Supplement for Catalog D 12 2012
7.1.3
L10
dv/dt filter
(SINAMICS GM150 in IGCT version,
SINAMICS SM150 in IGCT version)
Overview
The converter generates pulses at the output that stress the motor insulation. The
dv/dt filter limits the voltage gradients at the converter output to max. 1 kV/µs and
simultaneously reduces the capacitive charge/discharge currents of motor cables.
Design
The dv/dt filter is water-cooled and integrated in the Motor Module (see following
diagram).
Converter
L10
Motor
Figure 2-2
Block diagram option L10
Note
Using option L10, the following restrictions apply:
•
The maximum pulse frequency of the converter is 200 Hz.
•
The deionized water requirement of the cooling unit is 4 l higher than specified
in the technical data.
•
The output currents must be limited according to the following table.