High efficiency saturating reactor for starting a three phase mo

Details High efficiency saturating reactor for starting a three phase mo High efficiency saturating reactor for starting a three phase mo

1989-12-27

1990-08-21

Kozma, Thomas J.

Inductor devices

Polyphase

336 10, 336210, 336212, H01F 2900, H01F 2726

Patent

active

049510240

ABSTRACT:
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.

REFERENCES:
patent: 1386828 (1921-08-01), Winston
patent: 3411121 (1968-11-01), Twomey
patent: 3436707 (1969-04-01), Derbyshire et al.
patent: 3745499 (1973-07-01), Smith
patent: 3760316 (1973-09-01), Czewski et al.

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