Electromagnetic trip device

Details Electromagnetic trip device Electromagnetic trip device

H - Electricity

01

H

H01H 77/10 (2006.01) H01H 73/04 (2006.01)

Patent

CA 2761830

The invention is about an electromagnetic trip device (1) for a circuit breaker, with a current path comprising a conductor (13) guiding an electric current through at least one contact point (2, 3) formed between a fixed and a movable contact piece (4, 6; 7, 8), with a contact lever (8) carrying the at least one movable contact piece (5, 7), the contact lever (8) being mounted to be movable between a closed contact position and an open contact position. The electromagnetic trip device (1) comprises a magnetic circuit (9) with an air-gap (10) and the movable contact lever (8) is at least partially located in the air-gap (10), and that the electric current flows through the contact lever (8) in a direction perpendicular to the orientation of the magnetic flux in the air-gap (10).

L'invention concerne un dispositif de déclenchement électromagnétique (1) pour disjoncteur comprenant un trajet de courant comprenant un conducteur (13) conduisant un courant électrique à travers au moins un point de contact (2, 3) formé entre une pièce de contact fixe et une pièce de contact mobile (4, 6; 7, 8), et un levier de contact (8) transportant ladite pièce de contact mobile au moins (5, 7), ce levier de contact (8) étant monté pour se déplacer entre une position de contact fermé et une position de contact ouvert. Le dispositif de déclenchement électromagnétique (1) comprend un circuit magnétique (9) pourvu d'un entrefer (10) et le levier de contact mobile (8) est au moins partiellement situé dans l'entrefer (10), et le courant électrique passe dans le levier de contact (8) dans un sens perpendiculaire à l'orientation du flux magnétique dans l'entrefer (10).

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