Operation condition detection method for voltage transformer

Abstract

The invention discloses an operation condition detection method for a voltage transformer 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 RU of the voltage transformer is further calculated, according to the corresponding relationship between a preset voltage transformer operation condition value and an operation state, the actual operation state corresponding to the actual operation condition 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, influence of a secondary load value, a voltage deviation score, the environment temperature, the relative environment humidity, the primary conductor magnetic field, an outer electric field and the frequency on the voltage transformer is taken into consideration by the detection method, comprehensive detection on the operation condition 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 operating conditions of a voltage transformer. Background technique [0002] In order to ensure the normal operation of the voltage transformer and the reliability of its metering data, it is usually necessary to remotely estimate the operating conditions of the voltage transformer. Most of the existing inspection methods for the operating conditions of the voltage transformer use manual inspection. The inspection method requires a lot of manual on-site inspection and complicated calculation process, and the work efficiency is low; secondly, when the on-site precision test of the voltage transformer is performed manually, the voltage transformer is repeatedly operated, resulting in the original normal operation. If the equipment fails, there is a large hidden danger of failure; in addition, the existing inspection ...

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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 metering data, it is usually necessary to remotely estimate the operating conditions of the voltage transformer. Most of the existing inspection methods for the operating conditions of the voltage transformer use manual inspection. The inspection method requires a lot of manual on-site inspection and complicated calculation process, and the work efficiency is low; secondly, when the on-site precision test of the voltage transformer is performed manually, the voltage transformer is repeatedly operated, resulting in the original normal operation. If the equipment fails, there is a large hidden danger of failure; in addition, the existing inspection methods for the operating conditions of the voltage transformer only simply detect the quality of the equipment of the voltage transformer, while the detection of the operating status of the voltage transformer is often ignored. The impact of this part of the fault is sometimes very large. Therefore, the existing inspection method for the operating condition of the voltage transformer cannot realize a comprehensive inspection of the operating condition of the voltage transformer, resulting in the final operating condition inspection results 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 operating conditions of the power voltage transformer, and thus unable to ensure the safe, stable and accurate operation of the main voltage transformers, lack of accident control Process information for dynamic tracking and analysis, and cannot dynamically control serious faults

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