2results about How to "Realize failure prediction" patented technology

This utility model discloses an energy meter with a fault self-diagnosis function circuit, comprising: a main control module, a metering module, a communication module group, a multi-level interlocking protection circuit, a diagnostic bus matrix, a fault tracing memory, and a power supply module. The main control module is connected to the metering module, the communication module group, the multi-level interlocking protection circuit, the diagnostic bus matrix, and the fault tracing memory. The diagnostic bus matrix is ​​connected to the metering module and the communication module group. The fault tracing memory is connected to the multi-level interlocking protection circuit. The power supply module is connected to the main control module, the metering module, the communication module group, the multi-level interlocking protection circuit, the diagnostic bus matrix, and the fault tracing memory. This technical solution enables comprehensive fault self-diagnosis of the energy meter, increasing the detection coverage to 12 key nodes, improving response speed, supporting fault prediction and reliable data storage, ensuring operational safety, and improving the level of intelligent power grid management.

The application discloses a short-circuit cumulative distortion evaluation method and system of a power transformer spiral winding and a medium, relates to the technical field of electrical equipment reliability evaluation, and is based on structure parameters and historical fault parameters to fit out peak current plastic deformation and peak current plastic deformation generated by the first peak current in short-circuit impact; and according to the peak current plastic deformation, single-impact deformation reduction and reclosing-impact deformation reduction are calculated; finally, multiple-impact deformation accumulation is calculated, and distortion evaluation is performed on the last impact deformation accumulation result; the application provides a short-circuit cumulative distortion calculation method based on the structure and historical fault parameters of a target power transformer, can effectively evaluate the spiral winding distortion deformation condition, enhances the reliability of the transformer and the stability of the power grid operation, ensures the continuous and stable power transmission, and realizes fault prediction and health management of the transformer spiral winding.