Synchronous electric machine with salient poles in the rotor

Details Synchronous electric machine with salient poles in the rotor Synchronous electric machine with salient poles in the rotor

1979-06-28

1981-08-11

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310218, H02K 124

Patent

active

042836484

ABSTRACT:
In a synchronous electric machine with salient poles in its rotor, which are supported by a lamination chain, one sided large enlargements of the lamination chain deviating from a circular shape are prevented by straps arranged between the hub body and the lamination chain, the attachment of the straps at the lamination chain, with the machine standing still, being with a play which corresponds approximately to the mean expansion of the lamination chain at the runaway speed. If this play is taken up through expansion of the lamination chain due to one-sided forces, then the straps prevent further expansion. The invention is of advantage especially for slowly rotating hydroelectric generators.

REFERENCES:
patent: 969790 (1910-09-01), Mattman
patent: 1687513 (1928-10-01), Reist
patent: 1817054 (1931-08-01), Baudry
patent: 3271607 (1966-09-01), Slotnick et al.
patent: 3555329 (1971-01-01), Meyer

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