A new approach to harmonic restraining——Universal Harmonic filter

named as LINEATOR

is proposed. It is an advance in the passive power filter. The device consists of T-type reactor reversed polarity with a small filter capacitor connected between the power supply and the load. For this reason

the series-opposing mutual inductance reduces the voltage drop across the winding between the power supply system and non-linear load

while in the harmonic condition

a high impedance is fromed in the supply system circuit. As a result

the majority of harmonic currents are diverted from the power system into the filter circuit

and the harminic currents which flow into supply system are radically reduced. The digital simulation and experimental study of a 6 phase rectifying circuit whith the UHF are conducted. The harmonic components of the current on the power supply side are effectively reduced by the UHF in compaison with the 5

th

harmonic LC single-filter.