Abstract:
Method for producing a circuit-breaker pole part (1) comprising an external insulating sleeve (7) made of a solid synthetic material for supporting and housing a vacuum interrupter insert (8) for electrical switching a medium-voltage circuit, wherein an adhesive material layer (12) at least on the lateral area (11) of the interrupter insert (8) is applied and the coated interrupter (8) is embedded by molding with the solid synthetic material in order to form a single layer of the surrounding external insulating sleeve (7).
Abstract:
Die Erfindung betrifft einen Mittelspannungs- oder Hochspannungsschalter für Freiluftanwendungen, gemäß Oberbegriff des Patentanspruches 1. Um hierbei zu erreichen dass dennoch Kunststoffteile als Isolierelemente eingesetzt werden können, jedoch die oben beschriebenen Nachteile bei einem Freiluftbetrieb vermieden werden, ist hierbei erfindungsgemäß vorgeschlagen, dass die Isolierkomponenten mit Silikon beschichtet werden.
Abstract:
The invention relates to a shielding element for the use in medium voltage switchgears with vacuum interrupters with at least two contacts, which are movable along a switching path between closed and open contact position, wherein the shielding element is positioned around the contact position region in the vacuum interrupter, according to claim 1. In order to enhance the energy absorbance behavior of the at least the shielding, at least the inner surface of the shielding is applied with a topographic structure which is a rough at least partly disordered surface structure.
Abstract:
A magnetic actuator with a movable part and a non-movable part is provided. The movable part comprises two ferromagnetic elements which are arranged such that a part of the elements is close to the non-movable part in order to reduce a magnetic force for acting on the movable part an perform a switching operation of the magnetic actuator while moving the movable part towards the non-movable part. As the distance between the movable part and the non-movable part is reduced compared to actuators with parallel plates, it may be possible to reduce a current through a coil of the non- movable part for generating the magnetic force for acting on the movable part so that a switching operation is performed. In order to not reduce the working stroke of the magnetic actuator, the ferromagnetic elements of the movable part are able to rotate around a rotational axis when being attracted towards the non-movable part.
Abstract:
Method for producing a circuit-breaker pole part by molding an external insulating sleeve (9) with insulation material, mounting a vacuum interrupter insert (8) inside the insulating sleeve (9), electrically connecting the vacuum interrupter insert (8) with an upper electrical terminal (2) and a lower electrical terminal (3) arranged in the wall section of the insulating sleeve (9), with the following production steps: molding the external insulating sleeve (9), wherein only the upper electrical terminal (2) is embedded in the insulation material, coating the vacuum interrupter insert (8) with an extra layer (11 ) made of insulation material for thermo extension compensation, mounting the coated vacuum interrupter insert (8) by screwing on a threaded bolt (10) onto the upper electrical terminal (2).