Device for supplying power to measuring sensors and...

Details Device for supplying power to measuring sensors and... Device for supplying power to measuring sensors and...

G - Physics

01

R

G01R 19/25 (2006.01)

Patent

CA 2600545

The invention relates to a device for supplying power to measuring sensors and transmitting a synchronous clock signal thereto, in particular, for a low- voltage switchgear, with a power supply unit (10) whose output signals are transmitted to the measuring sensors via transformers providing the isolation. A quartz-controlled oscillation circuit arrangement (quartz-controlled clock generator) is provided whose output signals are supplied to the power supply unit (10) so that the clock frequency of the power supply unit output signals is the same for the primary sides of the transformers (11, 12, 13), the frequency lying within the operating range of the transformers (11, 12, 13).

L'invention concerne un équipement d'alimentation en énergie de capteurs de mesure et de transmission d'un signal de rythme synchrone à ces derniers, notamment pour une installation basse tension. Cet équipement comprend un bloc d'alimentation dont les signaux de sortie sont transmis aux capteurs de mesure par les transformateurs servant d'isolant. Un dispositif circuit d'oscillation commandé par quarz (générateur de rythme commandé par quarz) dont les signaux de sortie sont cédés au bloc d'alimentation (10) de telle façon que la fréquence de rythme des signaux de sortie du bloc d'alimentation des côtés primaires des transformateurs (11, 12, 13) soit identique, la fréquence se situant dans la plage de travail des transformateurs (11, 12, 13).

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