Die Vorrichtung dient dem VerriegeIn eines Zugangs für die Betätigung zweier Schaltgeräte einer Hochspannungsschaltanlage mit Hilfe einer Antriebskraft auf die beiden Schaltgeräte übertragenden Antriebswelle (10). Um die Betriebssicherheit der Hochspannungsschaltanlage mit geringem Aufwand zu erhöhen, weist diese Verriegelungsvorrichtung eine an der Antriebswelle (10) befestigte Schliessscheibe (60) auf sowie eine mindestens vier Kippriegel (51, 52, 53, 54) enthaltende Kippriegelanordnung (50) und einen Schieber (80). Der Schieber ist Vorort in zwei Positionen führbar, von denen die erste einen Zugang für die Betätigung Vorort freigibt und einen Zugang für die Betätigung aus der Ferne blockiert und die zweite den Zugang für die Vorortbetätigung blockiert und den Zugang für die Fernbetätigung freigibt.

A switching device (1) for an encapsulated electric power distribution switchgear comprising a switch (10), an electrically conductive housing (20) to which the switch is mounted, and which housing (20) comprises an opening (24) that leads into the housing (20). The switch comprises a first electric contact (12) connected to a first conductor (16) and a second electric contact (14) connected to a second conductor (18), the second contact being movable in relation to the first contact and in relation to the housing. The further comprises an operating shaft (30) of electrically insulating material being rotatable about its longitudinal axis Y in relation to the housing, and which is inserted into the housing via the opening (24), and an actuator member (40) located inside the housing and having a first end (42) coupled to the shaft and a second (44) end coupled to the second contact (14). The actuator member is made of an electrically insulating material. The shaft (30) extends through the opening (24) and into the housing without directly contacting the housing (20) and is supported in the housing (20) by the actuator member. The actuator member (40) is movably supported in the housing (20) at a connection area (26) that forms an interface (27) between the actuator member and the housing. The interface is located at a distance D from the longitudinal axis Y of the shaft that is longer than a distance d between the longitudinal axis Y of the shaft and a circumferential edge (23) that delimits the opening (24) in the housing, which first and second distances are measured in the same radial direction in relation to the longitudinal axis Y.

A bypass switch for high voltage direct current (HVDC) transmission is provided. The bypass switch includes a housing, a fixed contactor disposed in the housing and electrically connected to a first portion of a HVDC transmission circuit, a movable contactor movably disposed in the housing at a position spaced apart from the fixed contactor and electrically connected to a second portion of the HVDC transmission circuit, an insulation member coupled to a side of the movable contactor, an explosive actuator disposed at one side of the insulation member and exploded according to an electrical signal, and a piston mechanism which is moved by the force of gas generated due to the explosion of the explosive actuator, applies force to move the insulation member, and allows the fixed contactor and movable contactor to be electrically connected to each other.

The present invention is the field of electrical elements, related to the technology for improving the connection performance of the static contact device for strong current in high voltage switches, especially for a type of static contact device for strong current in high voltage ground switches. It includes a base, with two Contact Pieces standing face-to-face on it and vertical to its upper end surface. Outside each of the two Contact Pieces, there is a supporting plate, the lower end of which is firmly fixed on the base. Two groups of coaxially stacking Belleville springs are set between each supporting plate and the contact piece on the same side. By way of setting two groups of Belleville springs on one side, the present invention enlarges the contact surface between the Contact Piece and the moving contact blade, effectively reinforcing the gripping for each other. Compared with the scheme in which a single group of Belleville springs is used on one side with equal pressure, this new scheme can prolongs the products' service life as well as ensure good connection performance of the static contact.

L'invention concerne un dispositif de commande (30) à distance d'un appareil électrique (20) dans une armoire électrique (2) incluant une paroi de fond (4) et des parois latérales (6, 8) délimitant un logement (L), un appareil électrique (20) étant fixé à l'intérieur du logement, ce dispositif comportant :

- un organe rotatif de commande (32), apte à être fixé sur une paroi à l'extérieur du logement et sélectivement déplaçable entre des première et deuxième configurations,

- un système de transmission (40) apte à relier mécaniquement l'organe rotatif (32, 32') à un levier de commande de l'appareil électrique, le système de transmission (40) étant configuré pour que le déplacement de l'organe rotatif de commande (32, 32') entraîne en déplacement le levier de commande respectivement entre des première et deuxième positions. Conformément à l'invention, l'organe rotatif de commande (32, 32') est destiné à être monté sur une des parois latérales (6, 8) du logement,

- le système de transmission (30) comporte :

• un premier pignon, solidaire en rotation avec l'organe rotatif de commande (32, 32') autour d'un premier axe (X2),

• un deuxième pignon, engrené avec le premier pignon et mobile en rotation autour d'un deuxième axe fixe perpendiculaire au premier axe fixe et destiné à être couplé mécaniquement avec le levier de commande pour déplacer ce levier lorsque le deuxième pignon se déplace en rotation.

Die vorliegende Erfindung betrifft ein Kontaktelement für Hochspannungs-Gleichstromschalter, ein Verfahren zur Herstellung eines solchen Kontaktelements sowie die Verwendung des Kontaktelements in einem Hochspannungs-Gleichstromschalter.