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Typical Applicatons
Power distribution systems which require multiple
harmonic elimination or power factor correction.
Product description
The power quality filters developed by ABB are active
filters offering unprecedented ability to eliminate
harmonics from the network. The PQF eliminates harmonics in
a controlled way. It is easy to expand and adapt to changes
in the network. The PQF monitors the line current in real
time and processes the measured harmonics as digital signals
in
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a high-power DSP (Digital Signal Processor). The output
of the DSP controls PWM (Pulse Width Modulated) power
modules that through line reactors inject harmonic currents
with exactly the opposite phase to those that are to be
filtered. The net effect is an elimination of the harmonics
and a clean sine-wave as seen by the feeding transformer.
The PQF is UL approved (UL File # E254288).
PQF sizing information
Consult your local ABB representative or the factory for
assistance in sizing your PQF filter.
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