Electricity: electrical systems and devices – Safety and protection of systems and devices – High voltage dissipation
Patent
1981-03-12
1982-07-20
Eisenzopf, Reinhard J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
High voltage dissipation
361129, H02H 104, H02H 322
Patent
active
043409237
ABSTRACT:
A gas filled surge arrestor is combined with an additional electrode to form a back-up air gap surge arrestor axially aligned therewith. The size of the air gap is held to a predetermined distance by a high dielectric ceramic sandwiched between the additional electrode and an intermediate electrode common to both arrestors. The outside diameter of the ceramic is smaller than that of the electrodes forming the air gap. The presence of the ceramic creates a pre-ionization level of electrons which facilitate the occurance of breakdown at a consistent, repeatable level. The additional electrode also serves as a collar to center the surge arrestor assembly in an electrically conductive casing, forming a unit adapted for insertion into a standard retaining cup. The electrode-ceramic sandwich is held together by a retaining washer which exerts a spring force to keep the elements in proper spaced relation to one another.
REFERENCES:
patent: 3100274 (1963-08-01), Luftman et al.
patent: 4013927 (1977-03-01), Gilberts
patent: 4015172 (1977-03-01), Peche et al.
patent: 4132915 (1979-01-01), Wilms
R. K. Traeger and E. F. Ehrman, "The Lightning Arrestor Connector",IEEE Trans. on Parts, Hybrids, and Packaging, vol. PHP-12, No. 2, pp. 89-94, Jun. 1976.
J. P. Brainard and L. A. Andrews, "Dielectric Stimulated Arcs in Lightning Arrestor Connectors", IEEE Trans. on Comp., . . . Technology, CHMT-2, No. 3, pp. 309-316, Sep. 1979.
Andersen Clifford H.
Bazarian Albert
Scannell John W.
Eisenzopf Reinhard J.
General Instrument Corporation
Lipsitz Barry R.
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