Power transformer and coupling means therefor

Details Power transformer and coupling means therefor Power transformer and coupling means therefor

1996-06-28

1998-09-15

Gellner, Michael L.

Inductor devices

Combined

With connector

174 11BH, 174152R, 174 14BH, 174 15BH, H01F 2704, H01B 1726, H02G 1528

Patent

active

058085360

ABSTRACT:
A power transformer is provided with a housing having a plurality of apertures for receipt of a bushing well of a bushing assembly. Each bushing assembly includes a bushing well adapted to be secured in one aperture of the power transformer, and a bushing adapted to be connected to a terminal in the bushing well to permit the conducting of electric current between the bushing assembly and the transformer. The bushing assembly further includes a connector for connecting the bushing conductor to a terminal positioned in the bushing well. The power transformer may include a cap to cap the unused bushing wells. The cap is, preferably, a plate structure that attaches to the lip of the bushing well and uses the dielectric formed by the air enclosed by the cap and the bushing well to prevent sparking over to adjacent sites and corona discharge, to prevent accidental contact with the live terminal therein, and to guard against contamination of the well.

REFERENCES:
patent: 3462645 (1969-08-01), Leonard
patent: 3767843 (1973-10-01), Stone
GE Medium Transformer, Primary Substation Transformer from GE, GEA 12217, Oct. 1993.
Article for Loadbreak Bushing Insert: Electrical Apparatus 500-12, by Cooper Powers Systems: Transmission Distribution, Electrical Apparatus Specifiers Catalog, Jan. 1990, vol. three, pp. 1-2.

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