Three-phase delta-wound motor operated from single-phase current

Details Three-phase delta-wound motor operated from single-phase current Three-phase delta-wound motor operated from single-phase current

1980-12-29

1984-11-20

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318817, H02P 144

Patent

active

044841256

ABSTRACT:
A three-phase delta-wound motor adapted for operation from a source of single-phase current, which motor includes first and second terminals adapted to be connected to the single-phase current source and substantially identical first, second, and third phase windings. A capacitor and the first and second phase windings are series-connected one with the other across the first and second terminals, the polarity of the first winding with respect to the second winding being opposite that of a normal delta-wound motor. The third phase winding is connected directly across the first and second terminals in parallel with the serially-connected capacitor and first and second phase windings.

REFERENCES:
patent: 602911 (1898-04-01), Steinietz
patent: 771293 (1904-10-01), Averrett
patent: 1780395 (1930-11-01), Kennedy
patent: 1912337 (1933-05-01), Kennedy
patent: 2922942 (1960-01-01), Steelman
patent: 3202896 (1965-08-01), Lewus
patent: 3566226 (1971-02-01), Tamm
patent: 3588649 (1971-06-01), Heine et al.
patent: 3670238 (1972-06-01), Ronk
patent: 3970907 (1976-07-01), Myers
patent: 4158225 (1979-06-01), Hertz
Bulletin Has 4, Steelman Electric Mfg. Co., Kilgore, Texas.
Veinott, C. G., Theory and Design of Small Electric Motors, McGraw Hill, 1959, pp. 135-140.

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