Dv/Dt Filter (Option L11) - Siemens SINAMICS GM150 Operating And Installation Instructions

Description
3.6 Description of options
3.6.21

dv/dt filter (option L11)

The input filter is used to limit the voltage gradient to max. 1 kV/µs. At the same time, the input
filter is used to limit the capacitive recharging currents of the line cables and so protects the
transformer insulation system. The input filter is integrated into the power unit.
①
②
R1,R2,R3
L1,L2,L3
C1,C2,C3
M
N
Figure 3-12
Usage restrictions for the input filter
● The drive may be operated only with following maximum currents:
● The following line length between the filter output and the transformer is permitted with
● The re-cooling unit requires 10 liter more flow
62
Transformer
Drive
6 Ω
20 μH
1 μF
Center of the drive
Center point of the dv/dt filter
Circuit diagram option L11
– 4 kA drive: 1680 A (without filter 1770 A)
– 5 kA drive: 1780 A (without filter 1870 A)
shielded cables (cable cross-section 185 mm
– 200 m when six parallel cables are used
– 400 m when three parallel cables are used
Filter resistor
Filter reactor
Filter capacitor
):
2
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017