3.6.13
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
Transformer
②
Drive
R1,R2,R3
6 Ω
Filter resistor
L1,L2,L3
20 μH
Filter reactor
C1,C2,C3
1 μF
Filter capacitor
M
Center of the drive
N
Center point of the dv/dt filter
Figure 3-20 Circuit diagram option L11
Usage restrictions for the input filter
● The drive may be operated only with following maximum currents:
– 4 kA drive: 1680 A (without filter 1770 A)
– 5 kA drive: 1780 A (without filter 1870 A)
● The following line length between the filter output and the transformer is permitted with
shielded cables (cable cross-section 185 mm
2
):
– 200 m when six parallel cables are used
– 400 m when three parallel cables are used
● The re-cooling unit requires 10 liter more flow
Description
3.6 Description of options
SINAMICS SM150 6SL3845-7NN46-7AA0
76
Operating Instructions 04/2017
Summary of Contents for SINAMICS SM150
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Page 14: ...Table of contents SINAMICS SM150 6SL3845 7NN46 7AA0 14 Operating Instructions 04 2017 ...
Page 122: ...Start up SINAMICS SM150 6SL3845 7NN46 7AA0 122 Operating Instructions 04 2017 ...
Page 190: ...Maintenance 9 7 Repairs SINAMICS SM150 6SL3845 7NN46 7AA0 190 Operating Instructions 04 2017 ...
Page 192: ...Spare parts SINAMICS SM150 6SL3845 7NN46 7AA0 192 Operating Instructions 04 2017 ...
Page 196: ...Service Support SINAMICS SM150 6SL3845 7NN46 7AA0 196 Operating Instructions 04 2017 ...
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