Method of making impregnated electrical capacitor employing plas

Details Method of making impregnated electrical capacitor employing plas Method of making impregnated electrical capacitor employing plas

1977-04-21

1979-10-09

Smith, John D.

Coating processes

Electrical product produced

Condenser or capacitor

29 2542, 252 63, 361315, 427 81, 427177, 427372R, H01G 422, H01G 432

Patent

active

041706650

ABSTRACT:
An impregnated electrical capacitor employing a dielectric which at least in part comprises plastic foils, in which the dielectric is expanded by an impregnating agent to substantially eliminate objectionable gaps filled with air or impregnating material whereby the breakdown strength provided by the dielectric foils is not impaired. In producing such capacitor, the temperature during and after impregnation and the degree of winding compression or tightness may be varied to provide desired control of the expansion and insure complete impregnation and control of the final volume, as compared with the original, of the capacitor structure.

REFERENCES:
patent: 2470826 (1949-05-01), McMahon
patent: 2935668 (1960-05-01), Robinson et al.
patent: 2938153 (1960-05-01), Netherwood
patent: 2951002 (1960-08-01), Ruscito
patent: 3215909 (1965-11-01), Schill et al.
patent: 3253199 (1966-05-01), Cozens
patent: 3346789 (1967-10-01), Robinson
patent: 3363156 (1968-01-01), Cox
patent: 3450968 (1969-06-01), Cox
VON Hippel, Tables of Dielectric Materials, p. 366.
Modern Dielectric Material, von Birks, pp. 140 to 143, 1962.
An Introduction to Polymer Chemistry, Moore, University of London Press, 1963.
Elektrotechnise Zeitschrift, 12-1957.
Elektrotechnische Zeitschrift, Dec. 10, 1962.

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