High voltage bushing flange and flange to insulator joint
AssigneeGeneral Electric Company
InventorGary R. Barnes
Life of this patent
Estimating the term…
Abstract
A high voltage bushing includes an insulator sleeve adapted to be fitted over a conductor; an annular metal mounting flange telescoped over the sleeve, the mounting flange having a substantially smooth, axially extending cylindrical portion and a radial portion located at one end of the axial portion; an annular, axially extending epoxy layer between the mounting flange cylindrical portion and the insulator sleeve, the epoxy layer having a thickness of at least about 0.50 inch; and an annular ferrule sealing the juncture of the porcelain sleeve and the mounting flange on a side of the radial portion remote from the axial portion. The annular ferrule has a radial section engaging the radial portion of the mounting flange, and an axial section soldered to the porcelain sleeve.
Claims16
A high voltage bushing assembly comprising:
- an insulator sleeve adapted to fit over a conductor, an annular metal flange mounted on said sleeve, said mounting flange consisting of an axial portion and a radial portion located at one end of said axial portion, said axial portion joined to said sleeve by an adhesive layer, the composition and thickness of which is sufficient to decouple the relatively high thermal expansion of the sleeve from the relatively low thermal expansion of the mounting flange, said axial portion having a free end remote from said one end, said free end chamfered radially inwardly in a direction away from said radial portion;
- and
- an annular copper ferrule extending between said insulator sleeve and an underside of said radial portion.
A high voltage bushing comprising:
- an insulator sleeve adapted to be fitted over a conductor, said sleeve having an annular shoulder between portions of the sleeve having different diameters;
- an annular metal mounting flange telescoped over said sleeve to a location adjacent said shoulder, said mounting flange having a substantially smooth, axially extending cylindrical portion free of any reinforcement gussets, and a radial portion located at one end of the axial portion;
- an annular, axially extending epoxy layer between said mounting flange cylindrical portion and said insulator sleeve, said epoxy layer, the composition and thickness of which is sufficient to decouple the relatively high thermal expansion of the sleeve from the relatively low thermal expansion of the mounting flange, said axial portion terminating short of said annular shoulder.
Dependencies are inferred from the claim text.