What makes active
conditioners different ?
The main advantages of active conditioners
is that they continue to guarantee efficient harmonic compensation
even when changes are made to the installation. They are also exceptionally
easy to use as they feature:
> Auto-configuration to harmonic
loads whatever their order of magnitude,
> Elimination of overload risks,
> Compatibility with electrical
generator sets,
> Connection to any point of
the electrical network,
> Several conditioners can
be used in the same installation to increase depollution efficiency
(for example when a new machine is installed).
How do active conditioners work ?
Active conditioners analyse the harmonics
drawn by the load and then inject the same harmonic current to the
load with the appropriate phase. As a result, the harmonic currents
are totally neutralised at the point considered. This means they no
longer flow upstream and are no longer supplied by the source.
Where should active conditioners be installed
?
Treating harmonics requires
accurate, in-depth knowledge of the installation. In new installations
we recommend calculating global harmonic distortion for various key
points during the design phase. In existing installations it is often
best to have an expert audit the site and prepare a full diagnosis.
In all cases it is essential to define the main objective:
Either compliance with standards
In this case, the active conditioner must be
placed upstream from the installation (with an "injection" point close
to the utility supply network),
Or
reduction in pollution level within the installation
In this case the solution is to neutralise
harmonics as close as possible to the main nonlinear loads. Active
conditioners should be located downstream (in the secondary switchboard
or final distribution boards).
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