KEB COMBILINE Mains Input and Motor Chokes
The B6 rectifier input circuit in the input of variable speed drives causes current ripples that strain the DC-bus capacitors in the inverter and generate harmonic distortions in the utility grid.
The power choke (50/60 Hz) flattens the charging current and reduces harmonics - both are important factors for the reliability and lifetime of the machine.
The modulated output voltage of the inverter creates additional stress for the insulation and can result in functional problems in the device in the case of long motor leads.
KEB COMBILINE power chokes flatten the output currents, reduce the strain on the insulation and are available for output frequencies...50 Hz, ...100 Hz and ...200 Hz.
