 The DC smoothing reactor has an inductance of 0.12 H and is designed for a current of 2,400 A.On each side filters for the 5th, 7th, 11th and 13th harmonic exist, which consist of a series connection of a capacitor, an inductor and a resistor.In addition, a high pass filter is used, which consists of a capacitor switched in series with a coil to which a resistor is switched in parallel.