Siemens SINAMICS PM240-2 - Typical Harmonic Currents

Technical data
6.8 Electromagnetic compatibility of variable-speed drives
Power Module PM240-2
Hardware Installation Manual, 01/2020, A5E33294624B AL
111
● 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
SC
at the connection point of the customer's system to the public
grid, is greater than or equal to the value according to the following formula:
S
SC
≥ 120 x √3 x V
in
x LO base load input current
Example: FSD converter, 400 V, input current, 70 A:
S
SC
≥ 120 x √3 x 400 V x 70 A
This corresponds to a low-voltage transformer with an apparent power rating of
300 kVA … 400 kVA with V
K
= 4% … 6%
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.
Typical harmonic currents (Page 111)
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 Typical harmonic currents (%) of the converter
Converter
Harmonic number
5th
7th
11th
13th
17th
19th
23rd
25th
FSA … FSC, 200 V, 400 V
1)
54
39
11
5.5
5
3
2
2
FSD … FSF, 200 V
2)
28
14
8
6
5
4
3
3
FSD … FSG, 400 V
2)
37
21
7
5
4
3
3
2
FSD … FSG, 690 V
2)
34
18
8
5
4
3
3
2
1)
Values relative to the LO input current for V
K
1%
2)
Values relative to the LO input current