Method of bracing end turns of an electric machine by means of a

Details Method of bracing end turns of an electric machine by means of a Method of bracing end turns of an electric machine by means of a

1978-03-22

1981-10-27

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 45, 310260, 310270, 174138E, 336207, H02K 348

Patent

active

042976065

ABSTRACT:
Method of bracing winding end turns of an electric machine includes wrapping a first binding tape transversely around a pair of winding bars forming the end turns and disposed spaced from and substantially parallel to one another, wrapping a second binding tape transversely about the wrapped first binding tape in the space between the pair of winding bars so that the wrapped first and second binding tapes and the mutually opposing surfaces of the parallel winding bars define an inner space within, and injecting a flowable, cold hardenable cement mass into the inner space, and introducing into the space between the winding bars at the location of the inner space subsequently defined by the wrapped first and second binding tapes and the winding bars, and before injecting the cement mass into the inner space, a spacer member defining and predetermining the spacing between the pair of winding bars and having a shape that affords penetration of the cement mass from a given point of injection to all of the spaces and surfaces defining the last-mentioned spaces within the interior space defined by the wrapped first and second binding tapes and the pair of winding bars; and device therein.

REFERENCES:
patent: 2994735 (1961-08-01), Marshall
patent: 3135888 (1964-06-01), Coggeshall
patent: 3330978 (1967-07-01), Pettit
patent: 3437859 (1969-04-01), Gibbs
patent: 3999157 (1976-12-01), Philofsky

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