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Abb Schweiz Ag

Christof Humpert

Dietmar Gentsch

Wenkai Shang

Oliver Claus

Carlo Cereda

Arne Klaska

Zhenhua Fan

Lorenzo Bonzi

Dietmar Dr-Ing Gentsch

Till Dr-Ing Rümenapp

A method for production of a pole part of a medium-voltage switching device, and a pole part are provided. To obviate costly pressure reinforcements at least on the switching contact side of the vacuum interrupt chamber in the area of the mold core, while also achieving an optimum injection-molded result, a compensation ring is positioned, before the encapsulation process, as a separate injection-molded seal on or close to the external circumferential line of a vacuum interrupt chamber cover, between the lower cover of the vacuum interrupt chamber and the mold core. The positioned compensation ring is also encapsulated so as to remain in the encapsulation, and the mold core is then removed.

Method for production of a pole part of a medium-voltage switching device, as well as the pole part itself

The present disclosure provides a method of manufacturing a current terminal for an embedded pole part, in which a vacuum interrupter is molded by an isolating coverage in a hot and pressure injection process, and such a pole part. At the position of the upper electric terminal at the fixed contact side of the vacuum interrupter, a pressure protecting element is placed into the mold, at least close to the upper part the fixed contact side of the vacuum interrupter and/or together with it, and the protecting element, the terminal and the vacuum interrupter are embedded by injection molding.

Method of manufacturing a current terminal for embedded pole part, and pole part itself

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Willich, Germany

Christof Humpert