### Print

Technical specification relevant only to design

Electrical data and diagram

 Title Swinging Smoothing Choke for 3 Phase Rectifier Bridge Input Set two LI-points: 2 inductance at 2 peak currents. Note that the induction corresponds to the first current Select the differential inductance : L-Type = 4 Select Cu flat wire: Wire = 4 The frequency of the first harmonic is 300Hz Set the harmonics of the thermal current: the rms-values of the first harmonic and of the DC-current Set the temperature rise Select cheap steel. Note that the induction will be optimized by program in order to get 2 prescribed inductance at 2 prescribed currents Set Gap = 1 and Core Assembly = 2 Select suitable core family Output Press Ctrl+L in order see the diagram Inductance vs. Current Test Round the number of turns Change the peak value of the second LI-point in order to increase the current range of the diagram Inductance vs. Current 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).
 Title Smoothing Choke for 1 Phase Rectifier Bridge Input Set the LI-point of the inductance, the induction at the peak current. Select the differential inductance : L-Type = 4 Select Cu flat wire: Wire = 4 The frequency of the first harmonic is 100Hz Set the harmonics of the thermal current: the rms-values of the first harmonic and of the DC-current Set the temperature rise Select cheap steel. Set Gap = 1 and Core Assembly = 2 Select suitable core family Output Press Ctrl+L in order see the diagram Inductance vs. Current Test Round the number of turns Change the peak value in order to increase the current range of the diagram Inductance vs. Current 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).
 Title High Frequency Smoothing Choke for 1 Phase Rectifier Bridge Input Set the LI-point of the inductance, the induction at the peak current. Select the differential inductance : L-Type = 4 Select Cu flat wire: Wire = 0 Select core material: ferritee or powder The frequency of the first harmonic is 50000Hz Set the harmonics of the thermal current: the rms-values of the first harmonic and of the DC-current Set the temperature rise Select suitable core family and the gap position Output Press Ctrl+L in order see the diagram Inductance vs. Current Test Round the number of turns Change the peak value in order to increase the current range of the diagram Inductance vs. Current 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).
 Title Drainage Choke between 2 phases of inverters Input Set inductance of both windings in series at approx. 5-10% of the nominal current Iout/2 Select the differential inductance : L-Type = 4 Select Cu flat wire or foil with layer insulation: Wire = 3 or 6 The frequency of the first harmonic is 50Hz Set the rms values of the harmonics of the thermal current: Note that the sign "+" marks the compensated current harmonics. Set the temperature rise Select cold rolled steel. Set Gap = 1 and Core Assembly = 2 or better Select suitable core family (UI) Output Control the value of inductance Test Set the current in the LI-point higher and Press Ctrl+L to see the diagram Inductance vs. Current Note In order to calibrate the choke, connect both in series windings 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).