Typical Harmonic Currents - Siemens SINAMICS G120 Installation Manual

● Power Module FSD, input voltage 380 ... 480 V 3 AC: A line reactor is not required
Note
Line reactor
Contact our Solution Partners
(https://www.automation.siemens.com/solutionpartner/partnerfinder/Home/Index?country
=DE&program=1&technology=19&lang=en) for a line reactor.
● Short-circuit power S
grid, is greater than or equal to the value according to the following formula:
S
Example: FSD converter, 400 V, input current, 70 A:
S
This corresponds to a low-voltage transformer with an apparent power rating of
300 kVA ... 400 kVA with V
The installation company or company operating the equipment is responsible for ensuring
that this equipment is only connected at a connection point with an appropriate short-
circuit power (fault level).
If these preconditions do not apply, then the installation company or company operating the
device must obtain authorization from the grid operator to connect the device regarding the
harmonic currents.
Converters with an LO base load current > 75A
There are no standard-related requirements for installing devices such as these. However,
we recommend that the grid operator is informed when such a device is connected.
400 V converters conform to EN 61000-3-12.
6.8.2

Typical harmonic currents

Table 6- 39
Converter
FSA ... FSC, 200 V, 400 V
FSD ... FSF, 200 V
FSD ... FSG, 400 V
FSD ... FSG, 690 V
Values relative to the LO input current for V
1)
Values relative to the LO input current
2)
Power Module PM240-2
Hardware Installation Manual, 01/2020, A5E33294624B AL
at the connection point of the customer's system to the public
SC
≥ 120 x √3 x V x LO base load input current
SC in
≥ 120 x √3 x 400 V x 70 A
SC
Typical harmonic currents (Page 111)
Typical harmonic currents (%) of the converter
1)
2)
2)
2)
6.8 Electromagnetic compatibility of variable-speed drives
= 4% ... 6%
K
5th 7th 11th
54 39 11
28 14 8
37 21 7
34 18 8
1%
K
Harmonic number
13th 17th 19th
5.5 5 3
6 5 4
5 4 3
5 4 3
Technical data
23rd 25th
2 2
3 3
3 2
3 2
111