Date: 29/11/2010

Sinusoidal output filters from Schaffner reduces losses in AC motors

The FN5040/45 sinusoidal output filters from Schaffner can feed AC motor with a clean sinusoidal voltage with low residual ripple to reduce the extra losses in AC motors and extend the life of AC Motors.
The new sinusoidal output filters smooth the modulated output voltage of modern drives and prevents premature ageing or destruction of the AC motor due to high dv/dt, over-voltages, bearing currents or overheating due to extra losses.

The new filters are available in a compact open frame design (FN5040) or as a user-friendly packaged version (FN5045 - IP20). The cable-shield support brackets integrated into the housing facilitates work for the installer and favours savings of installation time and costs. Easily understood application instructions allow it to be safely used even beyond standard specifications, for motor frequencies up to 200 Hz or motor cable lengths up 2000 meters. Both models are designed for rated currents of 4.5 to 1200 A and for networks up to 3x 500 VAC (+/- 10%). The UL listing is currently in preparation.

The suggested applications include building technology (pumps, fans, HVAC) and industrial applications with very long motor cables or with several motors connected in parallel.