Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1998-05-28
1999-09-28
Gaffin, Jeffrey
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361 56, 361127, H02H 300
Patent
active
059598239
ABSTRACT:
A tank-type surge arrester includes a zinc oxide element unit having zinc oxide elements, a top shield ring for earth insulation control disposed on top of the zinc oxide element unit, an upper shield ring disposed below the top shield ring in an upper section of the zinc oxide element unit, an expanded lower shield ring disposed below the upper shield ring in the upper section of the zinc oxide element unit, and tubular conductors disposed between the upper and the lower shield rings so as to be included in a vertical plane on an extension of a high-tension conductor.
REFERENCES:
patent: 4321651 (1982-03-01), Ozawa et al.
patent: 5539607 (1996-07-01), Komatsu et al.
Application of High Withstanding Zinc Oxide Elements to SF6 Gas Insulated Tank Type Surge Arresters for the 22kV-765kV Power System, S. Shirakawa et al, 6 pages.
Shirakawa Shingo
Watahiki Satoshi
Gaffin Jeffrey
Hitachi , Ltd.
Jackson Stephen
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