Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-01-03
1997-11-11
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 51, H02K 100, H02K 524
Patent
active
056867743
ABSTRACT:
An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.
REFERENCES:
patent: 4200817 (1980-04-01), Bratoljic
patent: 4227107 (1980-10-01), Ban et al.
patent: 4341970 (1982-07-01), Auinger
patent: 5068587 (1991-11-01), Nakamura
patent: 5122705 (1992-06-01), Kusase et al.
patent: 5142213 (1992-08-01), Stelter
patent: 5274322 (1993-12-01), Hayashi et al.
patent: 5300870 (1994-04-01), Smith
patent: 5449962 (1995-09-01), Shichijyo et al.
Hughes, A., "New 3-Phase Winding of Low m.m.f. Harmonic Content", Proceeds of The Institution of Electrical Engineers, vol. 117, No. 8, pp. 1657-1666, Aug. 1970.
Bushman Ralph E.
Rhudy Ralph G.
Slavik Charles J.
Caress Virginia B.
Gottlieb Paul A.
Moser William R.
Stephan Steven L.
The United States of America as represented by the Department of
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