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ECOsine high-power filter modules for system integrators

Posted: 22 Jan 2014     Print Version  Bookmark and Share

Keywords:Schaffner  passive harmonic filters  ECOsine 

Schaffner has announced the availability of passive harmonic filters ECOsine as open frame modules with extended power rating up to 400kW/50Hz and 500HP/60Hz. These modular filters allow every high-power AC or DC motor drives to be easily upgraded to a low harmonic drive, said the company.

The units fit the requirements of integrators, fitting a considerable amount of electrical equipment into tight motor control centres and electrical cabinets. The chokes module is designed for easy placement at the bottom of the cabinet, while the capacitor and RC-damper modules can be placed wherever cabinet space is available.

The new filters don't need a dedicated expensive enclosure and can be incorporated into the customers own cabinet, allowing the filter components to be wired along with the overall electrical wiring job.

The modular high-power ECOsine filters come in two versions: FN3410 filters for 380-500V, 50Hz grids, available with standard ratings from 200 to 400kW; and FN3412 filters for 380-480V, 60Hz grids, available for power ratings from 300 to 500HP.

Filter modules are UL-recognised, CE-marked and RoHS compliant. They are particularly suitable for applications involving variable speed drives with DC-link chokes, where the total harmonic distortion (THD) of the load current must be reduced to around 5 per cent. Other applications include high power battery chargers, UPS, three-phase power supplies and other equipment with balanced 6-pulse rectifier front-end.

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