Electrical machine with a stator lamination of grain-oriented sh

Details Electrical machine with a stator lamination of grain-oriented sh Electrical machine with a stator lamination of grain-oriented sh

1981-02-13

1987-06-09

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 116

Patent

active

046722521

ABSTRACT:
The laminations of a laminated stator of a slowly running electrical machine having a high number of poles are composed of grain-oriented sheets, each of which has a preferential magnetic direction that extends substantially longitudinally along the teeth of that sheet. This permits the excitation current to be reduced, and, as a result, the air gap of the machine can be enlarged so that, on the whole, approximately the same excitation is required as for a laminated stator in which the laminations consist of normal, non-oriented sheets. As a result, the mechanical stability of the machine is increased. The invention is especially useful in asynchronous tube generators.

REFERENCES:
patent: 2046717 (1936-07-01), Bitter
patent: 2433660 (1947-12-01), Granfield
patent: 2774000 (1956-12-01), Ross
patent: 2792511 (1957-05-01), Horstman
patent: 2968860 (1961-01-01), Mereness
patent: 3809938 (1974-05-01), Sjoberg et al.

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