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relais de fréquence

frequency relay

électronique et électrotechnique - iate.europa.eu

Lorsque la fréquence du signal de fréquence dépasse un point déterminé de commutation du relais de fréquence, le circuit (7) commande le relais déconnecteur (6) de sorte que celui-ci coupe le circuit de courant de démarrage.

When the frequency of the frequency signal exceeds a set switching point of the frequency relay, the circuit (7) controls the switching-off relay (6) so that the latter interrupts the starter current circuit.

industrie mécanique - wipo.int

Le relais déconnecteur (6) est commandé par un circuit comprenant un relais de fréquence et deux éléments retardateurs.

The switching-off relay (6) is controlled by a circuit (7) comprising a frequency relay and two delay members.

industrie mécanique - wipo.int

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Real-time determination of power system frequency...e.g., frequency relay for load shedding, load-frequency controller, require accurate and fast estimation of the frequency....

général - core.ac.uk - PDF: zet10.ipee.pwr.wroc.pl

Setting frequency relays and voltage relays to protect synchronous distributed generators against islanding and abnormal frequencies and voltagesThis study concerns frequency relays and voltage relays applied to the protection ofsynchronous distributed generators operating in reactive power control mode withouta frequency regulation function....

PDF: core.ac.uk

Protective scheme design for the autonomous operation of a petroleum refinery cogeneration plant ... To enhance the system stability, the protective scheme by including the directional over current relay, under voltage relay and under frequency relay with proper settings has been applied....

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PDF: hal.archives-ouvertes.fr

Modeling and simulation of digital frequency relay for generator protection... This paper presents the design and various data conversion steps of a digital frequency relay....

PDF: eprints.um.edu.my