Three phase motor operated from a single phase power supply and

Details Three phase motor operated from a single phase power supply and Three phase motor operated from a single phase power supply and

1994-07-25

1996-08-13

Wysocki, Jonathan

Electricity: motive power systems

Induction motor systems

Primary circuit control

H02P 700

Patent

active

055459650

ABSTRACT:
A standard three-phase induction motor wherein two motor windings are connected across a single phase power supply, and a center-tapped autotransformer is connected between the third motor winding and one of the other motor terminals. A capacitor provides an injected current of a suitable phase angle for the third motor winding by being connected between the center tap and the second one of the other motor terminals. This same concept can also be used for a rotary-phase converter to generate three-phase voltage from a single phase line. The three-phase voltage can be used to supply several three-phase motors.

REFERENCES:
patent: 620988 (1899-03-01), Steinmetz et al.
patent: 1951026 (1934-03-01), Levine
patent: 1973010 (1934-09-01), Morrison
patent: 2423348 (1947-07-01), Short
patent: 2832925 (1958-04-01), Koll et al.
patent: 3202896 (1965-08-01), Lewus
patent: 3721646 (1966-09-01), Lewus
patent: 3809980 (1974-05-01), Nottingham, Jr.
patent: 5300870 (1994-04-01), Smith

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