H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/108, 26/113
H02K 15/00 (2006.01) H02K 3/38 (2006.01) H02K 15/12 (2006.01)
Patent
CA 1089204
CASTING ASSEMBLY FOR STATOR COILS AND METHOD ABSTRACT OF THE DISCLOSURE The terminal portion of a winding end turn con- ductor which projects from the core member of a dynamoelec- tric machine is encapsulated in an epoxy pot ing compound by means of a casting assembly which comprises a detachable conformable pad, a plastic sleeve mold, and a portable vise. The conformable pad is fitted about the terminal portion of the conductor to provide a temporary barrier to axial flow of the epoxy compound during casting. The plastic sleeve is disposed around the terminal portion in a spaced relationship therewith and in an abutting relation with the pad to pro- vide a barrier to the radial flow of the epoxy compound during casting. Clamping means such as a portable vise is fitted about the conformable pad and is tightened to esta- blish a compressive union at the interface of the conform- able pad and the terminal portion of the conductor to pre- vent leakage. A pair of spring members hold the sleeve in abutting engagement with the surface of the conformable pad during the casting process. In a preferred embodiment, a sealing compound is applied to the interface of the pad and the sleeve and also between the pad and the terminal portion of the conductor to prevent leakage. After the epoxy com- pound has cured, the clamping means and detachable con- formable pad are removed from the assembly and can be reused to encapsulate other conductors.
276572
Johrde Paul S.
Ruffing Charles R.
Zona Michael R.
Mcconnell And Fox
Westinghouse Electric Corporation
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