Bürkle + Schöck KG
Sinus Filters / Sinusoidal filters by Bürkle + Schöck KG
4-wire sinusoidal filter 400V 50Hz
Due to modern power electronics, more and more interference pulses are transmitted to the downstream motors. This can lead to high oscillating circuit voltages due to parasitic capacitances (cables, in components) and damage or destroy the motor winding. In order to reduce or eliminate these disturbances (harmonics, EMC), a sinusoidal filter is additionally connected between the frequency converter and the motor.
Three-phase sinusoidal filter Nominal voltage Un = 3x 400V consisting of filter choke and capacitance, fully wired.
Chokes are vacuum impregnated with cast resin varnish to reduce humming noises and increase insulation.
We use high-quality insulation materials of the chokes for insulation class T40/F.
Connections as terminals or copper busbar depending on current strength.
All sinusoidal filters are dimensioned by computer, manufactured with CNC machines, individually tested including a high-voltage insulation test with several 1000V.
CE-compliant protection class IP00, installation up to IP21
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