Transformer area electric energy meter error out-of-tolerance automatic detection system

Abstract

The invention belongs to the technical field of power detection, and relates to a transformer area electric energy meter error out-of-tolerance automatic detection system. The system comprises a single-phase intelligent electric energy meter and a concentrator; the single-phase intelligent electric energy meter comprises a metering core module, a management core module, a communication module andan expansion function module; the metering core module comprises a live wire channel sampling unit, a zero line channel sampling unit and a voltage sampling unit; the communication module has an infrared communication mode, an RS485 communication mode and a carrier communication mode; the expansion function module comprises a real-time monitoring module, a monitoring alarm module and an annual inspection module, wherein the real-time monitoring module is connected with the monitoring alarm module. According to the system of the invention, electric energy meters detect the metering error deviation of the metering channels of the electric energy meters; a single meter can be accurately positioned, so that an electric energy meter with unqualified error can be prevented from being continuously used online; the use conditions of the electric energy meters can be effectively monitored, and the alternating cost of the electric energy meters is reduced.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to an automatic detection system for errors of electric energy meters in station areas. Background technique [0002] With the rapid development of my country's economy, the demand for electricity in all walks of life is increasing, and the phenomenon of unbalanced electricity consumption at different times is also becoming more and more serious. In order to alleviate the increasingly sharp contradiction between power supply and demand in my country, adjust the load curve, and improve the phenomenon of unbalanced power consumption, the peak, flat, and valley time-of-use electricity price system will be fully implemented to "cut peaks and fill valleys" to improve the country's power consumption efficiency. Using power resources, the power departments of some provinces and cities in China have gradually introduced multi-rate electric energy meters to charge users' elec...

AI Technical Summary

Problems solved by technology

After a long time of use, some functions on the energy meter will gradually reflect insufficient, which will cause measurement errors, and these errors cannot be found in time, so that the energy meter is still used for a long time in the later period, which will cause economic growth for users , and even endanger life. In addition, during the rotation of the electric energy meter, it is usually a centralized replacement of a large area, which causes a burden on the cost

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