Transformer anti-short circuit capability comprehensive control method

Abstract

The invention discloses a transformer anti-short circuit capability comprehensive control method; the method studies influence factors on a transformer that may receive short circuit impact, and searches, concludes, sorts and researches parameters that affect the transformer anti-short circuit capability. The method builds a system that takes the transformer anti-short circuit capability accounting, assessment and treatment as core, real time accesses transformer factory parameters and transformer operation parameters, formulates accounting, assessment and treatment standard operations, and converts a conventional planed repair maintenance mode of the grid equipment into a more scientific stateful maintenance mode, thus improving the grid equipment safety operation stability, and reducingthe losses caused by accidents.

Description

technical field [0001] The invention relates to the field of electric equipment safety protection, in particular to a method for comprehensively managing short-circuit resistance of transformers. Background technique [0002] During the entire operation period, the transformer will inevitably be subjected to multiple impacts from various bad or extreme operating conditions. With the continuous improvement of the voltage level of the transformer in recent years, the continuous increase of the system capacity and the single capacity of the transformer, the short-circuit impedance of the transformer Under certain conditions, the threat of short-circuit electromagnetic force to the transformer will be more serious, especially the short-circuit in the near area has caused great harm to the transformer. In order to ensure the safe and reliable operation of the transformer, it is necessary to try to improve the short-circuit resistance of the transformer. The operation practice in...

AI Technical Summary

Problems solved by technology

[0003] At present, the research on the short-circuit resistance capacity of transformers is mostly based on the stress analysis based on the characteristics of the transformer material and structure, and there is a lack of research on the impact of the connection mode, operating environment, and short-circuit current cumulative impact on the short-circuit resistance capacity of the transformer.

At the same time, there are not many defensive decisions based on the results of calculation and verification, and there is a big difference between theoretical research and actual conditions.

Images