An Evaluation Method for Current Transformer Operation

Abstract

The invention relates to a current transformer operation evaluation method, which comprises the following steps: 1) original data of a field current transformer acquired by a system are monitored in an online mode via a remote metering device, and the original data are uploaded to a data server of an upper PC; 2) the upper PC classifies the original data, and according to the original data after classification, a mathematical model for current transformer operation evaluation is built; and 3) according to the built mathematical model for current transformer operation evaluation, current transformer operation is evaluated, a final health index HI of the current transformer is acquired, and according to the final health index HI, an operation trend of the current transformer is predicted and early warning is carried out. Compared with the prior art, the current transformer operation evaluation method has the advantages of being scientific and reasonable, a large specific number of research objects, wide covering range, systemaltization, intelligence and the like.

Description

Technical field [0001] The invention relates to the field of electric power, in particular to a method for evaluating the operation of a current transformer. Background technique [0002] Gateway metering is an important part of the three major five systems under the large marketing system. The operation of the gateway metering device not only reflects the management level, but also relates to the economic benefits of both electricity sales and purchasers. In order to maintain fairness, impartiality, openness, and credibility management devices, and maintain the seriousness of measurement, it is necessary to refine and classify the operation conditions to provide a scientific basis for technical countermeasures. [0003] This time, the project "Research on the Operation Evaluation System and Remote Condition Monitoring Scheme of Gateway Electric Energy Metering Device" undertaken by Shanghai Electric Power Research Institute, Xiamen Hongxiang Company and Technical Service Company, ...

AI Technical Summary

Problems solved by technology

[0004] At present, power companies mainly judge the operating status of current transformers in the field through periodic verification, but periodic verification has a large workload, consumes a lot of manpower and material resources, does not find faults in time, and has insufficient basis for power recovery after faults, etc. A series of disadvantages, therefore, it is urgently needed to establish an evaluation method for the operating state of current transformers

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