Electric energy meter state testing method

Abstract

The invention discloses an electric energy meter state testing method high in efficiency and comprehensive and accurate in testing result. The method is characterized in that basic information data and field operation data of an electric energy meter are collected, the collected data is classified, an electric energy meter operation state value GS is calculated, and according the corresponding relation between a preset electric energy meter state value and the operation state, the practical operation state corresponding to the practical state value of the electric energy meter is determined. According to the invention, the operation state of the electric energy meter is obtained by means of data analysis, and the efficiency is high; secondly, manual intervention is reduced, and the fault risks of the equipment is relatively low; and all aspects of the electric energy meter are comprehensively considered, the comprehensive testing on the state of the electric energy meter is realized, the accurate, comprehensive and high reliability final testing result is ensured, and the dynamic safety stability of the electric energy meter can be accurately grasped. The electric energy meter state testing method is suitable to be popularized and applied in the technical field of gateway metering equipment state estimation.

Description

technical field [0001] The invention relates to the technical field of status evaluation of gateway metering equipment, in particular to a method for checking the status of electric energy meters. Background technique [0002] In order to ensure the normal operation of the electric energy meter and the reliability of the metering data, it is usually necessary to remotely estimate the operating state of the electric energy meter. Manual on-site inspection and complex calculation process, the work efficiency is low; secondly, when manually testing the on-site accuracy of the electric energy meter, it is necessary to connect the current loop of the checked meter in series with the standard meter, and connect the voltage circuit in parallel with the standard meter. The terminals on the screen are loosened and tightened. After many times, the terminals are often loose or slipped, which leads to the failure of the equipment that was originally running normally, and there are great...

AI Technical Summary

Problems solved by technology

[0002] In order to ensure the normal operation of the electric energy meter and the reliability of the metering data, it is usually necessary to remotely estimate the operating state of the electric energy meter. Manual on-site inspection and complex calculation process, the work efficiency is low; secondly, when manually testing the on-site accuracy of the electric energy meter, it is necessary to connect the current loop of the checked meter in series with the standard meter, and connect the voltage circuit in parallel with the standard meter. The terminals on the screen are loosened and tightened. After many times, the terminals are often loose or slipped, which leads to the failure of the equipment that was originally running normally, and there are great hidden dangers of failure; moreover, manual on-site inspection The accuracy of the electric energy meter has certain requirements on the load of the secondary circuit, that is, the active power must be greater than 10W, and the power factor must be greater than 0.5. Once the load or power factor is too low, the inspection work cannot be carried out, resulting in the failure of the inspection work to be carried out smoothly; in addition , the existing manual inspection method of the electric energy meter only pays attention to the detection of the accuracy of the electric energy meter and the correctness of the wiring, and cannot realize the comprehensive inspection of the state of the electric energy meter, resulting in inaccurate inspection results, and manual intervention is prone to errors leading to inspection results Low reliability, unable to accurately grasp the dynamic safety and stability of the electric energy meter, and thus unable to ensure the safe, stable and accurate operation of each electric energy meter, lack of dynamic tracking and analysis of accident handling information, and unable to dynamically control serious faults

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