Circutor Has developed the range LCL of filters of harmonic, thought especially to delete the harmonic of the current absorbed by converters of power, like frequency converters for motors, SAI, etc. Are based in rectificadores of 6 pulses.
Between his functions stand out the reduction of the harmonic distortion of the converters to fulfil with the norms IEC 61000-3 and
IEEE-519.
The filters LCL are a step more advance of the reactance of reduction of curling and are designed to reduce the THD(I) to inferior values to 8% so that they allow to fulfil with the quoted norms.
His main provision are the reduction of harmonic in all the bandwidth, the elimination of microcortes been due to conmutación and the improvement of the factor of real power (reactive + harmonic). Besides, they are very robust; they can bear and attenuate transitory.