A method for testing the state of a voltage transformer

Abstract

The invention discloses a voltage transformer state detection method and aims to realize high efficiency and comprehensive and accurate detection result. The method comprises steps that basic information data and the onsite operation data of the voltage transformer are acquired, the acquired data is classified, an operation state value GP of the voltage transformer is further calculated, according to the corresponding relationship between a preset voltage transformer operation state value and an operation state, the actual operation state corresponding to the actual state value of the voltage transformer is determined. According to the method, efficiency is high, faults of the normally-operated equipment caused by artificial factors can be avoided, the basic information data, the detection date, the monitoring data and the family defect data of the voltage transformer are taken into comprehensive consideration by the detection method, comprehensive detection on the state of the voltage transformer can be realized, the detection result is guaranteed to be accurate, comprehensive and with high efficiency, and the method is suitable for popularization and application in the gateway metering equipment state evaluation technology 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 voltage transformer. Background technique [0002] In order to ensure the normal operation of the voltage transformer and the reliability of its measurement data, it is usually necessary to remotely estimate the operating state of the voltage transformer. Most of the existing inspection methods for the state of the voltage transformer use manual inspection. A large number of manual on-site inspections and complex calculation processes are required, and the work efficiency is low; secondly, when manually testing the on-site accuracy of the electric energy meter, the voltage transformer must be repeatedly operated, which will easily lead to failure of the original normal operation equipment after many times. Fault, there is a big hidden trouble; moreover, the existing manual inspection method of voltage t...

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Problems solved by technology

[0002] In order to ensure the normal operation of the voltage transformer and the reliability of its measurement data, it is usually necessary to remotely estimate the operating state of the voltage transformer. Most of the existing inspection methods for the state of the voltage transformer use manual inspection. A large number of manual on-site inspections and complex calculation processes are required, and the work efficiency is low; secondly, when manually testing the on-site accuracy of the electric energy meter, the voltage transformer must be repeatedly operated, which will easily lead to failure of the original normal operation equipment after many times. Fault, there is a big hidden trouble; moreover, the existing manual inspection method of voltage transformer only pays attention to the detection of voltage transformer accuracy and wiring correctness, and cannot realize the comprehensive inspection of voltage transformer state, resulting in the final The test results are inaccurate, and manual intervention is prone to errors, resulting in low reliability of the test results, unable to accurately grasp the dynamic safety and stability of the voltage transformer, and thus unable to ensure the safe, stable and accurate operation of the main voltage transformers. Process information for dynamic tracking and analysis, and cannot dynamically control serious faults

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