Title Three-Phase Commutation Choke, connected before rectifier bridge with smoothing choke Input ·         Set  inductance at peak current (View the peak value on the current diagram) ·         Select the AC inductance : L-Type = 2 ·         Select Cu round wire: Wire = 0 ·         The frequency of the first harmonic is 50Hz ·         Set the rms values of harmonics of the thermal current: typical values In=I1/n, without 3rd and 9th harmonic ·         Set the temperature rise ·         Select grain oriented steel. Note that the induction will be optimized by program in order to get optimal relationship between core losses and winding losses ·         Set Gap = 1 and Core Assembly = 2 or better ·         Select  suitable 3 phase core family Output ·         Control the value of induction, gap and connected wires in parallel Test ·         Round the number of turns Note ·         In order to calibrate the choke, connect it on the calculated calibration 3 phase AC-voltages (rms value) with the calibration frequency (normally 50Hz or 60Hz) and then vary the gap until you get the calculated calibration 3 phase AC-currents (rms value).

 Title One-Phase Commutation Choke, connected before rectifier bridge with smoothing choke Input ·         Set  inductance at peak current (View the peak value on the current diagram) ·         Select the AC inductance : L-Type = 2 ·         Select Cu round wire: Wire = 0 ·         The frequency of the first harmonic is 60Hz ·         Set the rms values of harmonics of the thermal current: typical values In=I1/n ·         Set the temperature rise ·         Select grain oriented steel. Note that the induction will be optimized by program in order to get optimal relationship between core losses and winding losses ·         Set Gap = 1 and Core Assembly = 2 or better ·         Select  suitable one phase core family Output ·         Control the value of induction, gap and connected wires in parallel Test ·         Round the number of turns Note ·         In order to calibrate the choke, connect it on the calculated calibration AC-voltage (rms value) with the calibration frequency (normally 50Hz or 60Hz) and then vary the gap until you get the calculated calibration AC-current (rms value).