H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 3/60 (2006.01) H01H 3/22 (2006.01) H01H 33/28 (2006.01)
Patent
CA 2076675
A hyper-rapid circuit breaker is described which is assisted by a semiconductor control circuit, comprising a repulsion coil, a repulsion disk (37) associated with a contact bridge (39) carrying the movable contacts (41), said repulsion disk (37) collaborating with said repulsion coil (35), a means for retaining the contacts in the closed state acting on a tail piece integrally connected to the repulsion disk (37), and a damping means (97) which comprises a plunger rod (95) integrally connected to the repulsion disk (37), and a reservoir (99) containing fluid intended to absorb the kinetic energy of the repulsion disk (37)/tail piece (43)/plunger rod (95) assembly upon repulsion by the repulsion coil (35), by adaptation of the shapes of the plunger rod (95) and of the reservoir (99) with respect to each other so as to have available fluid-removal sections which can vary as a function of the travel of the plunger, rod (95), the travel taking place in two stages, acceleration with a large passage section and braking travel with a progressively reduced passage section.
On décrit un disjoncteur hyper-rapide assisté par un circuit de commande à semi-conducteurs comportant une bobine de répulsion, un disque de répulsion (37) associé à un pont de contact (39) portant les contacts mobiles (41), ledit disque de répulsion (37) collaborant avec ladite bobine de répulsion (35), un moyen de retenue des contacts à l'état fermé agissant sur une queue solidaire du disque de répulsion (37) et un moyen d'amortissement (97) qui comporte une tige plongeuse (95) solidaire du disque de répulsion (37) et un réservoir (99) contenant du fluide destiné à absorber l'énergie cinétique de l'ensemble disque de répulsion (37) - queue (43) - tige plongeuse (95) lors de la répulsion par la bobine de répulsion (35), par adaptation des formes de la tige plongeuse (95) et du réservoir (99) l'une par rapport à l'autre de manière à disposer de sections d'évacuation de fluide variables en fonction de la course de la tige plongeuse (95). La course se faisant en deux temps, accélération avec grande section de passage et course de freinage avec une section de passage progressivement réduite.
Acec Transport S.a.
Gowling Lafleur Henderson Llp
LandOfFree
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