Method and device for testing differential protection relays...

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G01R 31/327 (2006.01) H02H 7/045 (2006.01)

Patent

CA 2257410

The invention relates to a method and device for testing differential protection relays or differential protection relay systems. The operating means to be protected by the differential protection relay or differential protection relay system are simulated with all their most important parameters by means of a test device. The test currents calculated in the simulation, in accordance with the means to be protected and other parameters, are sent to the differential protection relay or relay system which is connected to the testing device, so that the operating and error performances of the differential protection relay or relay system can be detected by means of the testing current applied, and can be evaluated in accordance with the specified tolerance data of the differential protection relay or differential protection relay system.

L'invention concerne un procédé et un dispositif de contrôle de relais de protection différentiels ou de systèmes de relais de protection différentiels. Les moyens de fonctionnement, avec tous leurs paramètres les plus importants, à protéger par des relais ou des systèmes de relais de protection différentiels sont simulés par l'intermédiaire d'un dispositif de contrôle. Les flux de contrôle dépendants des moyens de fonctionnement à protéger et d'autres paramètres, calculés lors de la simulation, sont fournis au système ou au relais de protection différentiel connecté au dispositif de contrôle, ce qui permet de détecter, par le dispositif de contrôle, au moyen des flux de contrôle appliqués, le comportement en fonctionnement et en dérangement des relais ou des systèmes de relais de protection différentiels, et d'évaluer en conséquence les données de tolérance spécifiées desdits systèmes et relais.

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