Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1977-04-19
1979-05-29
Salce, Patrick R.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
313306, 361129, H02H 322
Patent
active
041568869
ABSTRACT:
A three element gas filled tubular surge arrester is disclosed. The arrester has a hollow cylindrical mid-section or centerbody defining a first cylindrical electrode, and a pair of rod-shaped line electrodes extending inwardly into and along the axis of the centerbody from respective end caps to define respective annular gaps relative to the centerbody electrode as well as a gap between the opposed ends of the line electrodes. The end caps are electrically and mechanically connected to the line electrodes but insulated by annular insulator spacers from the centerbody. One of the line electrodes is partially hollow and apertured, and incorporates a pinch tube for exhaustion and subsequent filling of the tube interior with an ionizable gas.
Incorporated in this known design is an annular sleeve which lines the centerbody and is coaxial relative to the rod electrodes. The sleeve, which is of metallic composition, functions to improve the overload handling capacity of the arrester. Further, the insert improves the stability of the striking voltage.
REFERENCES:
patent: 3289027 (1966-11-01), Jones
patent: 3388274 (1968-06-01), Kawiecki et al.
patent: 3791711 (1974-02-01), Jonassen
patent: 3885202 (1975-05-01), Baker et al.
patent: 3914849 (1975-10-01), Martin
Salce Patrick R.
TII Corporation
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