Typical Harmonic Currents - Siemens SINAMICS PM240-2 Hardware Installation Manual

Technical data
7.9 Electromagnetic compatibility of variable-speed drives
● 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 inverter, 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.
Inverters 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 inverters conform to EN 61000-3-12.
7.9.2

Typical harmonic currents

Table 7- 32
Inverter
FSA ... FSC, 200 V, 400 V
FSD ... FSF, 200 V
FSD ... FSF, 400 V
FSD ... FSF, 690 V
Values relative to the LO input current for V
1)
Values relative to the LO input current
2)
100
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 100)
Typical harmonic currents (%) of the inverter
1)
2)
2)
2)
= 4% ... 6%
K
5th 7th 11th
54 39 11
28 14 8
37 21 7
34 18 8
1%
K
Hardware Installation Manual, 01/2017, A5E33294624B AE
Harmonic number
13th 17th 19th
5.5 5 3
6 5 4
5 4 3
5 4 3
Power Module PM240-2
23rd 25th
2 2
3 3
3 2
3 2