A reactor buffers the electronics from input transients due to utility and load switching elsewhere in the supply.
A reactor prevents high inrush currents and reduces the transient load on the input components.
A reactor improves VSD/VFD crest factor, reducing power input line losses.
A reactor controls emissions of line current harmonics due to the rectifier input circuit.
A reactor controls the impact of commutation notches on the power supply.
A reactor protects and increases the service life of DC link capacitors of VSD's.
A reactor reduces differential-mode low-frequency phenomena up to a few hundred khz.