Multifunction protective relay system

H - Electricity – 02 – H

Patent

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Details

H02H 7/06 (2006.01) H02H 3/00 (2006.01)

Patent

CA 2066099

A protective relay system for generation apparatus connectable to a three-phase alternating current electrical utility system. The relay system includes a dual processing architecture wherein a digital signal processor executes all the signal-processing algorithms, and a separate microprocessor is used for input/output data processing. A dual-ported RAM is used to effect a fast communication link between the digital signal processor and the microprocessor to accomplish high-speed protective relaying functions to selectively trip and close a circuit breaker at a generator or cogenerator site, or that which connects it to an electric utility system.

L'invention est un relais de protection pour une génératrice connectable à secteur triphasé. Le relais de l'invention comprend une architecture de traitement double dans laquelle un processeur à signaux numériques exécute tous les algorithmes de traitement de signaux, et un microprocesseur distinct est utilisé pour le traitement des données d'entrée-sortie. Une RAM à deux ports est utilisée pour établir une liaison de communication rapide entre le processeur à signaux numériques et le microprocesseur afin d'établir des fonctions de protection rapides pour actionner et fermer sélectivement un coupe-circuit à un site de génératrice ou de cogénératrice ou pour le connecter au secteur.

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