A self-healing capacitor

Details A self-healing capacitor A self-healing capacitor

H - Electricity

01

G

H01G 2/16 (2006.01) H01G 2/00 (2006.01) H01G 2/02 (2006.01) H01G 2/04 (2006.01) H01G 2/14 (2006.01) H01G 2/18 (2006.01) H01G 4/015 (2006.01)

Patent

CA 2267303

A self-healing power capacitor (1) comprising at least one capacitor unit (9-1, 9-2, 9-3), each capacitor unit (9) comprising at least one winding (2), said windings (2) of each capacitor unit (9) being provided with a first and a second connection electrode (10, 11), said windings (2) being surrounded by an encapsulation material (4) and housed in a first casing (3), said capacitor (1) having at least one protection element (6) for each capacitor winding (2), said protection element (6) comprising a membrane (16) provided for activating, upon a pressure exerted on said membrane (16) by a gas produced by a short-circuit within sais windings (2), a current interruption element (19), said protection element (6) being mounted in a second casing (13) which is mounted inside said first casing (3), said second casing (13) having one side formed by said membrane (16) and which is separated by a narrow gap (12) from an end-face of said windings (2).

L'invention concerne un condensateur de puissance autorégénérateur (1) comprenant au moins une unité condensateur (9-1, 9-2, 9-3), chaque unité condensateur (9) comprenant au moins un enroulement (2), lesdits enroulements (2) de chaque unité condensateur (9) présentant une première et d'une seconde électrodes de connexion (10, 11), lesdits enroulements (2) étant entourés d'une matière d'enrobage (4) et logés dans un premier boîtier (3), ledit condensateur (1) présentant au moins un élément de protection (6) pour chaque enroulement (2) de condensateur, ledit élément de protection (6) comprenant une membrane (16) prévue pour activer, par l'exercice d'une pression sur ladite membrane (16) au moyen d'un gaz produit par un court-circuit dans lesdits enroulements (2), un élément (19) d'interruption de courant, ledit élément de protection (6) étant monté dans un second boîtier (13) qui est lui-même monté dans ledit premier boîtier (3), ledit second boîtier (13) présentant un côté formé par ladite membrane (16) et étant séparé par un intervalle étroit (12) d'une surface terminale desdits enroulements (2).

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