Harmonics At The Power Supply Connection Point According To Iec 61000-2-2; Emc Limit Values In South Korea - Siemens SINAMICS G120 Installation Manual

Technical data
6.8 Electromagnetic compatibility of variable-speed drives
6.8.3

Harmonics at the power supply connection point according to IEC 61000-2-2

Description
IEC 61000-2-2 defines the compatibility level for voltage harmonics for the point of common
coupling (PCC) with the public supply system.
For systems in which converters or other non-linear loads are widely used, a circuit feedback
calculation that takes the individual system configuration into consideration should always be
performed.
The converter with upstream Line Harmonics Filters (LHF) allows adherence to the
compatibility level for voltage harmonics, regardless of what percentage of the overall load is
made up of the converter load.
Note
The voltage distortions behavior in the frequency range of 2 kHz to 9 kHz (IEC 61000-2-2
AMD 1) and from 9 kHz to 150 kHz (IEC 61000-2-2 AMD 2) must be evaluated specifically
for each system as a function of the impedance at the power supply connection point.
6.8.4

EMC limit values in South Korea

The following statements apply for filtered 400 V converters, frame sizes FSD ... FSF.
All other converters do not comply with the limit values.
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 filter (EMC filter),
may be necessary.
In addition, measures for EMC-compliant configuration of the plant or system are described
in detail in this manual.
You can find additional information about EMC-compliant configuration of the plant or system
on the Internet:
(http://support.automation.siemens.com/WW/view/en/60612658)
The final statement on compliance with the applicable standard is given by the respective
label attached to the individual device.
112
EMC installation guideline
Hardware Installation Manual, 01/2020, A5E33294624B AL
Power Module PM240-2