High voltage bushing having weathershed and surrounding stress relief collar

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:864027

Cookson, Alan H ^[1]

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1. Pittsburgh, PA

A high voltage electric bushing comprises a hollow elongated dielectric weathershed which encloses a high voltage conductor. A collar formed of high voltage dielectric material is positioned over the weathershed and is bonded thereto by an interface material which precludes moisture-like contaminants from entering between the bonded portions. The collar is substantially thicker than the adjacent weathershed which it surrounds, providing relief of the electric stresses which would otherwise appear on the outer surface of the weathershed. The collar may include a conductive ring or capacitive foil to further relieve electric stresses experienced by the bushing.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: ET-78-C-01-3107
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4296274
• OSTI ID: 864027
• Country of Publication: United States
• Language: English

Related Subjects

voltage
bushing
weathershed
surrounding
stress
relief
collar
electric
comprises
hollow
elongated
dielectric
encloses
conductor
formed
material
positioned
bonded
thereto
interface
precludes
moisture-like
contaminants
entering
portions
substantially
thicker
adjacent
surrounds
providing
stresses
otherwise
appear
outer
surface
conductive
capacitive
foil
relieve
experienced
hollow elongated
outer surface
dielectric material
bonded thereto
voltage conductor
stress relief
collar formed
voltage bus
voltage electric
substantially thick
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