the subject invention is static przetwornica tension jednofazowego in symmetrical arrangement napiec especially as a three-step systematic tension without higher harmonics to a row 10 including.the static przetwornicy tension jednofazowego in three phase adjustable frequency and low zawartosci harmonic creates transformer and multi-level inverter.a secondary system which generates three ratio is 1: 1 /? 3,beneficial to the wyjsciowego produced tension; tension relative (1) run by the rectifier (pr1) batteries, capacitors (c1) and the inverter (f1), three-step systematicand a relative (1 /? 3) zasilaja by rectifiers (pr2), (pr3), (pr4) respectively capacitors (c2), batteries (c3), (c4), which are powered by three single-phase inverters (f2), (f3)(f4) dodajace its tension to napiec falownika delta (f1). the sum of these napiec creates tension in schodkowe phase spectrum, whose closest higher harmonic is (11).
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