Arrester for gas insulated switchgear device

Details Arrester for gas insulated switchgear device Arrester for gas insulated switchgear device

1993-10-25

1994-12-13

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

361127, H01C 710, H02H 322

Patent

active

053732790

ABSTRACT:
An arrester for a gas insulated switchgear device includes a closed container filled with an insulating gas; a columnar piled body formed by piling up a plurality of zinc oxide resistance elements between a high voltage side terminal and a grounding side terminal disposed in the closed container; a plurality of potential equalizing rings electrically and mechanically connected to the high voltage side terminal of the columnar piled body, the potential equalizing rings being disposed in a discrete manner along the piling up direction of the zinc oxide resistance elements with a predetermined spacing distance while surrounding the outer circumference of the columnar piled body; and an intermediate electrode disposed around the columnar piled body at a position facing the potential equalizing ring located nearest to the grounding side terminal among the potential equalizing rings.

REFERENCES:
patent: 4321651 (1982-03-01), Ozawa et al.
patent: 4340924 (1982-07-01), Kresge et al.
patent: 4404614 (1983-09-01), Koch et al.
patent: 4930039 (1990-05-01), Woodworth et al.

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