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Harmonic Filters
Harmonic Filters
Dubas Engineering Pvt Ltd offers a wide range of active Harmonic Filters. These are DSP controlled equipment using IGBT as switching devices. The harmonic compensation is provided till the 40th harmonic with excellent dynamic response. These are ideal for all kinds of applications wherein high harmonic currents are present. Installation of adequately sized H-filters can completely nullify the harmonic problems in the network. H-filters are available for both 3-wire and 4-wire network. Networks with predominantly single phase based loads primarily in large computer installation sites, the neutral currents pose problems. H-filters can be installed to compensate harmonics in the entire network or specific load depending on the point of connection.
- Fully DSP controlled digital systems, providing compensation within 10 to 20 msec (< 1 cycle), monitoring the harmonic currents through every cycle
- Advanced IGBT based PWM technology, providing high reliability
- Capable of eliminating harmonics up to 40th order, can also be programmed to counter selective harmonics
- Generally suggested to install near the distortion creating specific loads, to nullify the harmonics generated by such loads (ex variable speed drives, rectifiers, switch mode power systems or other kinds of electronic system loads)
- System can be upgraded as the load grows by simply adding additional modules
- Three phase currents in the network also get balanced to a large extent by ePFC
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