High efficiency saturating reactor for starting a three phase motor

摘要

A three phase saturating reactor is constructed of thin E and I shaped laminations that are interleaved to minimize the effects of air gaps. The laminations include apertures that are in alignment and four identical frame members are secured thereto by means of insulated bolts that pass through the apertures in the core and corresponding holes in the frame members. The taps of the electrical phase coils that encircle the legs of the core are of heavy conductors that are self-supporting. The saturating reactor design is such that the core is driven into saturation at a small percentage of the rated current of the reactor to rapidly develop a back EMF when in a motor starting circuit.