Short circuit protection device including a breaker-limiter...

H - Electricity – 01 – H

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317/12.9

H01H 9/54 (2006.01) H02H 7/26 (2006.01) H02H 7/30 (2006.01)

Patent

CA 1281373

PRECIS DE DIVULGATION L'invention concerne un dispositif de protection d'un réseau alternatif de distribution contre les courants de court-circuit et un disjoncteur-limiteur approprié. Un disjoncteur aval génè- re un signal de neutralisation d'ouverture des contacts d'un disjoncteur-limiteur amont lorsque le courant aval dépasse un seuil de neutralisation inférieur au seuil de déclenchement et/ou au seuil de limitation. Le disjoncteur-limiteur amont présente en parallèle un couple de thyristors tête-bêche et un circuit de commande des gâchettes des thyristors, ce circuit rendant passant l'un des thyristors en réponse au signal pour inhiber pendant au plus une alternance.

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