Device for supplying power to measuring sensors and transmitting a synchronous clock signal thereto

Abstract From the Canadian patent

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).