Schneider Electric Usa, Inc.

Schneider Electric Sa

Ugine, Aciers De Chatillon Et Gueugnon

Jacques Quenin

Bernard Yvars

Francedillaois Trichon

Pierre Chappaz

Yvan Fedorenko

Pierre Brissonneau

Jean Verdun

An improved high voltage insulator includes a central core and an insulating body fitted tightly around the central core. A flexible coating layer is interposed between a part of the central core and the insulating body. The flexible coating layer fills in shrinkage cavities and compensates for a retraction effect caused by injected material used in forming the insulating body. The insulating body is overmolded to the central core previously coated with the flexible coating layer with an injected insulating resin such as a thermoplastic or thermosetting resin. The insulator could be used as a capactive divider or bushing insulator.

High voltage insulator

A process of manufacturing an insulator having a central core and an insulating body fitted tightly around the central core includes interposing a flexible coating layer between a part of the central core and the insulating body. The flexible coating layer fills in shrinkage cavities and compensates for a retraction effect caused by injected material used in forming the insulating body. The insulating body is achieved by overmolding the central core previously coated with the flexible coating layer with an injected insulating resin such as a thermoplastic or thermosetting resin. The insulator could be used as a capacitive divider or bushing insulator.

Manufacturing process of an insulator

Magnetic sheet metal obtained from hot-rolled strip steel containing, in particular, iron, silicon and aluminium and forming part of a family of sheet metals having orientated grains, characterized in that its composition is as follows: silicon less than 3.3%, aluminium between 1.5 and 8%, in concentration by weight, and in that the strip steel is subjected to cold-rolling in two steps with a final degree of reduction of between 50 and 80%, the magnetic sheet metal obtained having a general structure of the cubic type, at least 40% of the grains not deviating by more than 15.degree. from the ideal cubic orientation (100), 001 in the Miller notation.

Magnetic sheet metal obtained from hot-rolled strip steel containing, in

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Gieres, France

Jacques Quenin