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US 5,552,566 AGranted
Apparatus for preventing coronal discharge
AssigneeReliable Bethea Power Products, Inc.
InventorsWei-Chung Lin, William D. Caldwell, John W. Cundiff
Life of this patent
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AssigneeReliable Bethea Power Products, Inc.
InventorsWei-Chung Lin, William D. Caldwell, John W. Cundiff
Estimating the term…
An improved apparatus for deconcentrating an electric field surrounding a high voltage insulator. A clamp assembly centrally formed within a coronal ring permits positive placement of the coronal ring about an insulator end fitting. The clamping assembly comprises an integral clamp with a u-shaped opening for engaging a cylindrical portion of an insulator end fitting. A keeper clamp mounts superjacent to the integral clamp and a smaller second u-shaped opening engages a portion of the insulator end fitting having a smaller diameter. A captive fastener such as a bolt extends upwardly through the clamp and keeper clamp to secure the keeper clamp in position against the insulator end fitting and the integral clamp to secure the corona ring in position relative the insulator end fitting and sheds. The varied sized openings of the clamp and keeper clamp prevent inverted installation of the corona ring.
An apparatus for deconcentrating an electric field surrounding a high voltage insulator comprising:
An apparatus for deconcentrating an electric field surrounding a high voltage insulator comprising a corona ring having a integral cross member connecting inner edges of said ring, said cross member forming a clamp seat at a center said ring, said clamp seat defining a first u-shaped opening therein, a keeper clamp mounted adjacent said clamp seat, said keeper clamp defining an aligned second u-shaped opening of a dimension lesser than said first u-shaped opening, and a fastener retaining said keeper clamp adjacent said clamp seat, such that said first and second u-shaped openings receive therewithin an insulator end fitting on a high voltage insulator having a major and minor diameter.
An apparatus for deconcentrating an electric field surrounding a high voltage insulator comprising a corona ring having an integral cross member connecting inner edges of said ring, said cross member forming a clamp seat at a center of said ring, said clamp seat defining a first u-shaped opening and having a tab member extending rearwardly from said first u-shaped opening, said first u-shaped opening further comprising a pair of parallel walls for engaging a major diameter of an insulator end fitting, said clamp seat defining curved walls extending upwardly from said first u-shaped opening to accommodate a first surface of an annular bell of said insulator end fitting, said tab member defining a groove along an upper surface of said tab member perpendicular to said first u-shaped opening, a keeper clamp mounted adjacent said clamp seat, said keeper clamp defining an aligned second u-shaped opening of a dimension lesser than said first u-shaped opening, said second u-shaped opening comprising a pair of parallel walls for engaging a minor diameter of said insulator end fitting, said keeper clamp defining a surface outwardly extending from said second u-shaped opening to accommodate an opposite surface of said annular bell of said insulator end fitting, a fastener retaining said keeper clamp adjacent said clamp seat, said keeper clamp having a tab extending rearwardly therefrom and opposite said second u-shaped opening, said tab defining a ridge perpendicular to said second u-shaped opening, said ridge cooperatively engaging said groove of said tab member when said keeper clamp is secured adjacent said clamp seat via said fastening member .
Dependencies are inferred from the claim text.