Gaseous dielectric compositions

Details Gaseous dielectric compositions Gaseous dielectric compositions

1975-07-23

1977-10-04

Weinblatt, Mayer

Electricity: conductors and insulators

With fluids or vacuum

Boxes and housings

174 25G, 200144R, 200149R, 200149A, 252 63, 252 635, 252 65, 252 66, 252372, 252373, H05K 500, H01B 356

Patent

active

040525554

ABSTRACT:
Perfluorinated ethers evidence useful properties as gaseous dielectrics and do not exhibit a high carbon tracking tendency, which is commonly a problem with halogenated alkanes. Mixtures of the perfluorinated ethers with SF.sub.6 and/or CO.sub.2, in critical proportions which are specific to each system, evidence improved dielectric breakdown voltages. The perfluorinated ethers and mixtures of the perfluorinated ethers with SF.sub.6 and/or CO.sub.2 are useful in high voltage coaxial lines, transformers, minisubstations, and the like.

REFERENCES:
patent: 2853540 (1958-09-01), Camilli et al.
patent: 2989577 (1961-06-01), Borg
patent: 2990443 (1961-06-01), Camilli
patent: 3059044 (1962-10-01), Friedrich et al.
patent: 3184533 (1965-05-01), Eiseman et al.
patent: 3281521 (1966-10-01), Wilson
patent: 3305656 (1967-02-01), Devins
patent: 3390091 (1968-06-01), Eibeck
patent: 3650955 (1972-03-01), Manion et al.
patent: 3674696 (1972-07-01), Griffiths

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