Voltage controlled harmonic Filter with intelligent Adaptation in modular construction

SΦFIA® raises the bar in voltage controlled harmonic filtering. With a rising number of controlled loads, such as frequency converters or switch-mode power supplies, the number of loads with non-linear U-I-characteristic rises. This affects the electrical power supply grids in a way, as if they are a current source, which injects integer multiples of the fundamental current. These currents are named harmonics.

In the first instance harmonic currents stress the grid above the technically necessary level thus, that circuit breakers, transformers, transmission lines and o on must carry higher currents. Secondary the harmonic currents cause a distortion of the grid voltage. These currents with higher frequency feed against the grid impedance and thus cause distortion of the grid voltage. Furthermore resonances and effects from switching mode frequencies cause a deviation from the ideal voltage waveform.




Rated voltage3x 400 V / 50 Hz
Mains frequency50 Hz ±5 %
Filter current/-frequency100 A / 250 Hz
No load current45 ... 52 A (cap.)
Capcitor dimensioning> 750 V
Losses< 1.000 W
No load losses150 W
Ambient temperature-5/+40°C, 24 hour average ≤ 35°C
Degree of protectionIP20
Dimensions(WxDxH)226 x 475 x 1495 mm
Weight(app.)170 kg
Cable infeedfrom bottom
ConnectionsL1, L2, L3 and PE
HRC Output (on site)3x 160 A gG
Connection cross-section4 x 50 mm(NYY)

If you have questions about our product SΦFIA, please contact Mr. Roland Harkenbusch:

open contact partner

Roland Harkenbusch
Condensator Dominit GmbH
An der Bremecke 8
D-59929 Brilon
Tel: +49 29 61 782-42
E-Mail: roland.harkenbusch(at)dominit.eu