A state inspection method for current transformer

Abstract

The invention discloses a current transformer state examination method which is efficient and can obtain comprehensive and accurate examination results, comprising: collecting the basic information data of a current transformer and on-site operation data; classifying the collected data, and calculating a current transformer operation state value GC; and according to the corresponding relation between a preset current transformer state value and an operation state, determining the real operation state corresponding to the real state value of the current transformer. The current transformer state examination method is efficient, and can avoid breaking down of normal operation equipment caused by man-made reasons; the method comprehensively considers the basic information data, detection data, monitoring data and family defect data of a current transformer, can completely check states of the current transformer and guarantee the accuracy, comprehensiveness and high reliability of a final detection result, and is suitable for popularization and application in the gateway metering equipment state assessment technical field.

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 a current transformer. Background technique [0002] In order to ensure the normal operation of the current transformer and the reliability of its metering data, it is usually necessary to remotely estimate the operating state of the current transformer. Most of the existing current transformer state inspection methods use manual inspection. A large amount of manual on-site inspection and complex calculation process are required, and the work efficiency is low; secondly, when manually performing on-site precision testing on the current transformer, it is necessary to loosen and tighten the terminals of the current transformer, which takes many times. In the future, there will often be phenomena such as loose terminals or slipping wires, which will lead to failure of the equipment that was originally in no...

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Problems solved by technology

[0002] In order to ensure the normal operation of the current transformer and the reliability of its metering data, it is usually necessary to remotely estimate the operating state of the current transformer. Most of the existing current transformer state inspection methods use manual inspection. A large amount of manual on-site inspection and complex calculation process are required, and the work efficiency is low; secondly, when manually performing on-site precision testing on the current transformer, it is necessary to loosen and tighten the terminals of the current transformer, which takes many times. In the future, there will often be phenomena such as loose terminals or slipping wires, which will lead to failure of the equipment that was originally in normal operation, and there will be a greater hidden danger of failure; moreover, the existing manual inspection methods for current transformers only pay attention to the accuracy and accuracy of current transformers. The detection of the correctness of the wiring cannot realize the comprehensive inspection of the state of the current transformer, resulting in inaccurate inspection results, and manual intervention is prone to errors, resulting in low reliability of the inspection results, and it is impossible to accurately grasp the dynamic safety and stability of the current transformer. Furthermore, it is impossible to guarantee the safe, stable and accurate operation of the main current transformers, lack of dynamic tracking and analysis of accident handling information, and dynamic control of serious faults

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