Alstom

Gec Alsthom T&d Sa

Areva T & D Sas

Alstom Technology Limited

Bernard Gelloz

Christophe Rech

Jean Marmonier

Frédéric Loray

Guilhem Blanchet

Jean-Michel Berals

Arnaud Ficheux

Bruno Garand

A switch apparatus comprising two interrupters, such as a busbar disconnector and a grounding disconnector. Common actuator means are provided for the movable contacts of the interrupters, for permitting one of the interrupters to be opened while holding the other interrupter closed, and vice versa, which enables the strokes performed by the movable contacts to be crossed.

Electrical switch apparatus having two interrupters, such as a busbar disconnector and a grounding disconnector, and including common actuator means for the movable contacts of the interrupters

The gas-insulated multi-phase line is made up of sections, each of which is formed by metal cladding filled with a dielectric gas under pressure and containing at least three phase conductors disposed in a triangle configuration. Two adjacent sections are connected together via a connection module whose metal cladding is locally made up of a plurality of tubular portions, each of which is filled with dielectric gas and has a single phase conductor passing through it, constituting a passive electrical connection.

Gas-insulated multi-phase line, and a connection module for going from multi-phase to single-phase in such a line

A drive mechanism for driving a rotary signalling switch of a high voltage electrical apparatus, in particular a disconnector or a grounding switch, the mechanism connecting the rotary shaft of the signalling switch to a rotary actuator shaft of an actuator mechanism for actuating the contacts of the apparatus so that the contacts of the signalling switch are opened or closed when the contacts of the apparatus are opened or closed, the actuator shaft being displaced at an angular velocity .omega..sub.ht during an operation to open or close the contacts of the apparatus. The drive mechanism constitutes a positive action mechanism connected between said drive shaft and said rotary shaft, and includes drive device for driving the rotary shaft of the signalling switch at the beginning and at the end of an operation at a velocity .omega..sub.cs greater than .omega..sub.ht.

Rotary mechanism for driving signalling contacts of an electrical

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Saint Offenge Dessous, France

Bernard Gelloz