Harmonics and Flicker
The assesment of harmonics and flicker to EN61000-3-2 and EN61000-3-3
is a requirement of the European CE marking process for all
electrical equipment rated up to 16A.
The harmonics standard 61000-3-2 controls the the level of distortion
of the current drawn by equipment by specifying limits for the
amplitude of the first 40 harmonics. The method of measuring harmonics
is detailed by EN61000-4-7 which includes measurments of inter-harmonic
groups.
Inter-harmonic grouping
according to EN61000-4-7
The flicker standard EN61000-3-3 controls the level of voltage changes
imposed upon the ac line by products by setting limits for voltage
changes in terms of flicker. Flicker is measured by a specialist piece
of equipment called a flickermeter (EN61000-4-15).
Pst=1 Curve for
measuring voltage changes.
For
details, please complete the form oposite and request the application
note by email or a call back from a support engineer.
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