SCHEMATIC DEVICE FOR CONTROL AND REGISTRATION OF STATUS OF DEVICES AND PROTECTION UNITS FROM OVERLOADS Russian patent published in 2017 - IPC H02H3/04 

FIELD: electricity.

SUBSTANCE: invention relates to a circuit arrangement for monitoring and recording the status of devices and protect installations against overvoltages by means of a pulse current control, comprising at least one transponder RFID with electric power through inductive coupling, wherein in case of mentioned event for a device or installation of surge protection, the possibility of influencing the antenna frequency identification transponder circuit is provided, particularly through interruption, short-circuiting whether upsetting that allows the identification of interfering processes. According to the invention, a spool is provided on a tap conducting pulsed currents appearing in the device or an overvoltage protection device, which is oriented so that the field due to the impulse current penetrates the coil winding area. The coil (L2) is connected to at least one switching device that is connected to the antenna loop of the radio frequency identification transponder with the inductance (L1) therein to at least periodically interfere with the antenna circuit.

EFFECT: monitoring the state of the devices, for which a purposeful overload is impossible as a result of the passage of the impulse current.

9 cl, 4 dwg