Siemens SINAMICS G220 - Current Harmonics; EMC Limit Values in South Korea

4.13.5 Current harmonics
Technical data
When operated with rated power, the converter generates the following typical current
harmonics:
Table 4-4 Components of the harmonic I5 ... I15 relative to the fundamental current
R
SC
I5 I7 I11 I13 I17 I19 I23 I25 THC
120 34.5% 17.6% 8% 5.2% 4.5% 3.3% 3% 2.4% 40.3%
33 30.7% 11.6% 7.3% 5.1% 3.5% 2.5% 2% 1.7% 33.2%
R
SC
= Relative Short-Circuit power: Ratio between short-circuit power at the mains connection point to the
fundamental frequency apparent power Sof the connected converters
THC = Total Harmonic Current: Sum of all harmonic currents
4.13.6 EMC limit values in South Korea
Description
The EMC limit values to be observed for Korea correspond to the limit values of the EMC
product standard for variable-speed electric drives EN61800-3 of categoryC2 or the limit
value classA, Group1 to KN11.
By implementing appropriate additional measures, the limit values according to categoryC2
or limit value classA, Group1, are observed.
Additional measures, such as the use of an additional RFI suppression 󹪝lter (EMC 󹪝lter), may
be necessary.
In addition, measures for EMC-compliant con󹪝guration of the plant or system are described
in detail in this manual.
The 󹪝nal statement on compliance with the applicable standard is given by the respective
label attached to the individual device.
Application planning
4.13Electromagnetic compatibility (EMC)
SINAMICS G220 converter
80 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB