Electrical insulators having increased resistance to partial dis

Details Electrical insulators having increased resistance to partial dis Electrical insulators having increased resistance to partial dis

1976-06-17

1979-06-12

Smith, John D.

Compositions

Electrolytes for electrical devices

174110R, 174110PM, 174110E, 174127, 252 63, 252 632, 260 4575R, 252 64, 260429J, H01B 330, H01B 340, H01B 342

Patent

active

041579755

ABSTRACT:
The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators.
These electrical insulators are formed of a macromolecular material in which is incorporated a chelate of general formula: ##STR1## wherein: R.sub.1, R.sub.2 and R.sub.3 each represent hydrogen or a alkyl, aryl, or cycloalkyl group or a heterocyclic group containing a sulphur, oxygen or nitrogen atom, whereby said group or heterocyclic group may be substituted by one or more halogen atoms;

REFERENCES:
patent: 2465296 (1949-03-01), Swiss
patent: 2615860 (1952-10-01), Burgess
patent: 3272853 (1966-09-01), Braum
patent: 3291660 (1966-12-01), Oberth et al.
patent: 3577346 (1971-05-01), McKeown
patent: 3631146 (1971-12-01), Briggs et al.
patent: 3649542 (1972-03-01), Hasebe et al.
patent: 3946057 (1976-03-01), Reedy

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