Areva T&d Sa

Alstom Technology Limited

Areva T & D Sas

Gwenael Marquezin

Andre Cimala

Alain Girodet

Andre Neveu

André Cimala

Mehdi Lebiad

A very high voltage circuit breaker comprising, for each phase, at least two breaker chambers aligned with each other, each chamber including a pair of main contacts, a pair of arcing contacts that are stationary relative to the main contacts, and a nozzle for blowing out hot gases resulting from the breaking operations, the pairs of contacts being partly of complementary male and female forms, each comprising at least one movable contact, the nozzle being stationary relative to the movable main contact and arcing contact.

Circuit breaker with two aligned breaker chambers, a common transmission, and reduced size

A high or very high voltage circuit breaker comprising, for each phase:

Circuit breaker having a plurality of breaker chambers arranged in parallel, with a common transmission and reduced length

A device for the actuation of the movable contacts of a hybrid circuit breaker allows the following time diagram to be implemented: command the opening of the interrupting chamber, offset the opening of the vacuum switch so as to allow the interrupting chamber contacts to separate at a minimum speed and in a way that is synchronous with the separation of the vacuum switch contacts, close the vacuum switch while keeping the interrupting chamber in the open position. Moreover, closing the interrupting chamber does not act upon the contacts of the vacuum switch.

Drive kinematics in a hybrid circuit-breaker

Growing community of inventors

Villeurbanne, France

Gwenael Marquezin