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Siemens D 31 N · March 2016
4
SINAMICS G120C compact inverters
0.55 kW to 18.5 kW (0.75 hp to 25 hp)
Load-side power components
> Output reactors
■
Overview
Output reactor for SINAMICS G120C, frame size FSA
Output reactors reduce the rate of voltage rise (dv/dt) and the
height of the current peaks, and enable longer motor cables to
be connected.
Owing to the high rates of voltage rise of the fast-switching
IGBTs, the capacitance of long motor cables reverses polarity
very quickly with every switching operation in the inverter. As a
result, the inverter is loaded with additional current peaks of
substantial magnitude.
Output reactors reduce the magnitude of these additional peaks
because the cable capacitance reverses polarity more slowly
across the reactor inductance, thereby attenuating the ampli-
tudes of the current peaks.
When using output reactors, the following should be observed:
•
Max. permissible output frequency 200 Hz
•
Max. permissible pulse frequency 4 kHz
•
The output reactor must be installed as close as possible to
the frequency inverter
■
Selection and ordering data
Rated power
SINAMICS G120C
Output reactor
kW
hp
Type
6SL3210-...
Frame
size
Article No.
380 ... 480 V 3 AC
0.55
0.75
1KE11-8..2
FSAA
6SL3202-0AE16-1CA0
0.75
1
1KE12-3..2
1.1
1.5
1KE13-2..2
1.5
2
1KE14-3..2
2.2
3
1KE15-8..2
3
4
1KE17-5..1
FSA
6SL3202-0AE18-8CA0
4
5
1KE18-8..1
5.5
7.5
1KE21-3..1
FSB
6SL3202-0AE21-8CA0
7.5
10
1KE21-7..1
11
15
1KE22-6..1
FSC
6SL3202-0AE23-8CA0
15
20
1KE23-2..1
18.5
25
1KE23-8..1
© Siemens AG 2016