Connecting
6.6 Line reactors
SINAMICS DCM DC Converter
146
Operating Instructions, 12/2018, A5E34763375A
6.6
Line reactors
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.
NOTICE
Sequence of the wiring
Semiconductor fuses should be installed in the converter system upstream of the reactor.
The break times are then achieved by the normally used semiconductor fuses
An incorrect arrangement can destroy a thyristor (short-circuit) and rupture a fuse.
Line reactor selection list
Table 6- 4
3-phase line reactors, rated voltage = 400 V AC, uk = 4%
Article number
Rated current Inductance Copper
losses
Total
losses
SCCR
Weight
Rated insulation
voltage
6RX1800-4DK00 13 A AC
2.315 mH
22.8 W 33.1 W
2.0 kA (20 ms) 2.9 kg
600 V
6RX1800-4DK01 25 A AC
1.158 mH
30.8 W 53.2 W
5.0 kA (20 ms) 4.4 kg
600 V
6RX1800-4DK02 51 A AC
0.579 mH
43.5 W 73.2 W
6.5 kA (100 ms) 10.9 kg
600 V
6RX1800-4DK03 76 A AC
0.386 mH
64.4 W 118.5 W
9.0 kA (100 ms) 13.8 kg
600 V
6RX1800-4DK04 106 A AC
0.278 mH
51.3 W 119.3 W
15 kA (100 ms) 23.9 kg
600 V
6RX1800-4DK05 174 A AC
0.169 mH
164.8 W 206.4 W
15 kA (100 ms) 24.0 kg
600 V
6RX1800-4DK06 232 A AC
0.127 mH
197.4 W 256.2 W
20 kA (100 ms) 26.8 kg
600 V
6RX1800-4DK07 332 A AC
0.089 mH
190.7 W 251.1 W
24 kA (200 ms) 45.8 kg
600 V
6RX1800-4DK08 374 A AC
0.079 mH
186.7 W 251.7 W
24 kA (200 ms) 56.8 kg
600 V
6RX1800-4DK10 498 A AC
0.059 mH
277.0 W 357.4 W
35 kA (200 ms) 60.0 kg
600 V
6RX1800-4DK11 706 A AC
0.042 mH
329.4 W 424.8 W
55 kA (200 ms) 81.6 kg
1000 V
6RX1800-4DK12 996 A AC
0.030 mH
390.3 W 562.8 W
75 kA (200 ms) 100.1 kg
1000 V
6RX1800-4DK13 1328 A AC
0.022 mH
339.3 W 554.5 W
75 kA (200 ms) 138.8 kg
1000 V
6RX1800-4DK14 1660 A AC
0.018 mH
369.3 W 591.9 W
75 kA (200 ms) 210.7 kg
1000 V
6RX1800-4DK15 2490 A AC
0.012 mH
587.3 W 1038.3 W 75 kA (200 ms) 205.6 kg
1000 V
