Inductor devices – With electric and/or magnetic shielding means
Patent
1981-06-04
1988-06-14
Pellinen, A. D.
Inductor devices
With electric and/or magnetic shielding means
336 96, 264102, H01F 2702
Patent
active
047514884
ABSTRACT:
A coil is made having a plurality of layers of adjacent metal conductor windings subject to voltage stress, where the windings have insulation therebetween containing a small number of minute disposed throughout its cross-section, where the voids are voids filled with SF.sub.6 gas to substitute for air or other gaseous materials in from about 60% to about 95% of the cross-sectional void volume in the insulation, thus incorporating an amount of SF.sub.6 gas in the cross-section of the insulation effective to substantially increase corona inception voltages.
REFERENCES:
patent: 2893061 (1959-07-01), Terry, Jr.
patent: 3240848 (1966-03-01), Burke et al.
patent: 3652471 (1972-03-01), Sattler
patent: 3780071 (1973-07-01), Eley
patent: 4039990 (1977-08-01), Philp
patent: 4054680 (1977-10-01), Sharbaugh
patent: 4160178 (1979-07-01), Smith et al.
Lanoue Thomas J.
Wagenaar Loren
Westervelt Dean C.
Zeise Clarence L.
Deboer Todd E.
Fisher Robert J.
Hightower Judson R.
Pellinen A. D.
The United States of America as represented by the United States
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