Introduction
16
Operating instructions RHF
ELTROPLAN
-
REVCON
Elektrotechnische Anlagen GmbH
There are various harmonic mitigation standards, regulations and recommenda-
tions. Different standards are applied in different geographical areas and indus-
tries. The following standards that are applicable will be specified:
•
IEC/EN 61000-3-2
•
IEC/EN 61000-3-12
•
IEC/EN 61000-3-4
•
IEC 61000-2-2
•
IEC 61000-2-4
•
IEEE 519
•
G5/4
IEC 61000-3-2:
The scope of IEC 61000-3-2 is equipment connected to the public low-voltage
distribution system with an input current up to and including 16 A per phase. Four
emission classes are defined: Class A through D.
IEC 61000-3-12:
The scope of IEC 61000-3-12 is equipment connected to the public low-voltage
distribution system having an input current between 16A and 75A.
The emission limits are currently only for 230/400V 50Hz systems and limits for
other systems will be added in the future. The emission limits that apply for drives
are given in Table 4 in the standard. There are requirements for individual har-
monics (5th, 7th, 11th, and 13th) and for THD and PWHD.