All-Pole Sinewave-Filters for VLT® FC 100 / FC 200 / FC 300 All-Pole Sinewave Filters All-pole sinusoidal filters enable the generation of pure All-p sinusoidal voltages not only phase-to-phase but also with sinu respect to ground. While conventional sine filters form the resp phase-to-phase voltage of frequency converter’s output, for phas all-pole sinusoidal voltages a switching frequency filter for all-p Common-Mode is required additionally. All-pole sinusoidal Com filters attenuate the switching frequency and higher frequenlter cies completely. Typical Applications Typ The application of all-pole sine filters pays for itself by saving the c cable shield with long motor cables. Another application relates relat to sensitive and difficult-to-maintain motors. Bearing currents are completely prevented, and the winding insulation curr is no longer strained by rapid voltage changes. Examples: pumps, which are buried deep in the ground. Some Exam fan motors. Keep connections short Sine wave filter Common mode filter unscreened long cables Grid L1 L2 L3 PE Frequency converter ASWF Motor 100% sinusodil output on the motor cables and also against ground Benefits • Fulfills EMC class B/C1 for public areas grid bound and emitted (Frequency converter needs to have a H1 filter for unlimited cable length without screen) • Unlimited motor cale lenght • No screend motor cables necessary • No special installation for parallel motors • No bearing currents through EDM • Avoids HF leakage currents over the motor cables • All pole sinusodial tensions • No damaging voltage peaks and slew rate • Reduced leakage current Facts about our products
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