DC-DC CONVERTERS AND BATTERY CHARGERS
FQA / FQP — active and passive harmonic filters
Country: Spain · Model: FQA / FQP
The FQA and FQP filters reduce harmonic distortion of the current and compensate reactive power in grids with frequency converters. The active FQA series is rated for 100–800 A per phase, and the passive FQP is installed on 2.2–200 kW drives.
- FQA
- active, 100–800 A per phase, 380–525 V, efficiency ≥ 97 %, suppression up to the 13th harmonic
- FQP
- passive, 2.2–200 kW at 400/690 V, THDi < 5 % or < 10 %, efficiency 97 %
Technical specifications
| FQA | active, 100–800 A per phase, 380–525 V, efficiency ≥ 97 %, suppression up to the 13th harmonic |
|---|---|
| FQP | passive, 2.2–200 kW at 400/690 V, THDi < 5 % or < 10 %, efficiency 97 % |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The FQA works in 380–525 V grids, measures the load current and injects a compensating current, suppressing harmonics up to and including the 13th. Its efficiency is ≥ 97 %, and one unit on a common bus serves several nonlinear consumers. The FQP is installed in front of an individual frequency converter of 2.2–200 kW at 400/690 V. Depending on the version it keeps THDi < 5 % or < 10 % at an efficiency of 97 %. Lower harmonic content reduces the heating of transformers and cables and the number of false protection trips.
How to choose
The passive FQP is appropriate when a section has one or two drives of known power, because the filter is selected for a specific converter. The active FQA suits a bus with many nonlinear loads and is selected by the total harmonic current within 100–800 A per phase. For medium-voltage motors a separate filter is often not needed, because the XMV670 / XMV660 Outdoor drives keep THDi < 5 % themselves.
Request a price and lead time
FQA / FQP — active and passive harmonic filters, Power Electronics. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Up to which harmonic does the active FQA filter suppress?
The FQA compensates current harmonics up to and including the 13th in 380–525 V grids.
What THDi does the passive FQP filter achieve?
Depending on the version, THDi is < 5 % or < 10 %, for drives of 2.2–200 kW at 400/690 V.
What compensation current does the active FQA filter have?
The FQA rating is within 100–800 A per phase, with an efficiency of at least 97 %.
Do the FQA filters compensate reactive power?
Yes, together with the harmonics they compensate reactive power, which raises the power factor at the incomer.
Where is the passive FQP filter installed?
The filter is placed on the grid side in front of an individual frequency converter of 2.2–200 kW, so that harmonics do not get onto the common 400/690 V bus.
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