Circuit arrangement for compensation of harmonics for e.g. throttle, on three-phase supply network, has filter branches with two capacitors, where capacitors are connected between ends of filter branches that are turned away from phases

摘要

The arrangement (10) has filter branches (30) with a capacitor (34) and another capacitor (40) connected between ends (38) of the filter branches that are turned away from phases (20-24). Ends (28) of the latter capacitor are turned away from a parallel circuit and connected with the respective phases. An inductor (36) in each filter branch is connected in series to the former capacitor or the parallel circuit. Each phase is connected with the separate filter branch. The branches are connected between the inductor and a non-linear consumer (12) e.g. throttle, with the phases.