Multi-pole circuit breaker with parallel current

Details Multi-pole circuit breaker with parallel current Multi-pole circuit breaker with parallel current

H - Electricity

01

H

H01H 71/08 (2006.01) H01H 71/10 (2006.01)

Patent

CA 2390574

A circuit breaker includes a plurality of poles that are connected with one another in parallel, and additionally includes a mutual connection connecting the poles with one another to isolate the trip units associated with the poles from any imbalance in the current flowing through the poles. Each pole includes a first conductor structured to be connected with a power source, a second conductor structured to be connected with an electrical load, and a pair of separable contacts that disconnectably connect the first conductor with the second conductor. The trip unit of each pole is configured to measure the current flowing through a given point of the second conductor, and the mutual connection connects the second conductors together at a connection point, the connection point of each second conductor being between the separable contacts and the given point.

Disjoncteur muni d'une série de pôles connectés les uns aux autres en parallèle, et comportant aussi une connexion mutuelle reliant les pôles entre eux afin d'isoler les unités de déclenchement reliées aux pôles de tout déséquilibre dans le courant traversant lesdits pôles. Chaque pôle comprend un premier conducteur structuré de manière à être branché à une source de courant, un second conducteur structuré de manière à être branché à un consommateur électrique, et une paire de contacteurs séparables qui connectent temporairement le premier et le second conducteurs. L'unité de déclenchement de chaque pôle est configurée de façon à mesure le courant traversant un point donné du second conducteur, et la connexion mutuelle relie les seconds conducteurs ensemble au point de connexion, ce point de connexion de chaque conducteur se trouvant entre les contacteurs séparables et ledit point donné.

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