Areva T&d Sa

Tour Areva

Olivier Grejon

Jean-Pierre Dupraz

Michel Collet

Xavier Allaire

Wolfgang Grieshaber

Alain Fanget

Philippe Manin

Georges Doummar

A control apparatus for controlling electrical switchgear, the control apparatus being designed such that it is capable of performing the following in succession:

Apparatus for controlling electrical switchgear

A control device for controlling electrical switchgear such as a circuit breaker or the like includes an actuating arm having a connection point suitable for being moved along a closed line including points P, Pand P. The connection point thus moves during an opening stage for opening the moving contact, under the effect of a mechanical spring from point Pto point P. It also moves during a re-cocking stage for re-cocking the mechanical spring under the effect of a motor being switched on, and while keeping the moving contact in the open position, from point Pto point P. It also moves during a closure stage for closing the moving contact, also under the effect of the motor being switched on, from point Pto P. In this manner it is possible to successively perform three distinct stages of putting the actuating arm in motion, between the instant at which the moving contact leaves its closed position and the instant at which it returns thereto after having occupied its open position. A re-cocking stage for re-cocking the mechanical spring that is distinct from the closing stage and from the opening stage for closing and opening the moving contact, is performed, with the opening stage to be performed merely by releasing the energy that has been previously accumulated by the spring.

Control device for controlling electrical switchgear

Growing community of inventors

Parcieux, France

Olivier Grejon