In the context of the continuous development of the power system and the wide application of trans-formers,the normal operation of the transformer is crucial to the stability and reliability of the power system.How-ever,during long-term operation,transformers may be affected by various factors,leading to aging and deteriora-tion of their internal insulation materials,which in turn affects their normal operation.As an important part of trans-former insulation system,the monitoring and evaluation of insulating oil is of great significance to ensure the nor-mal operation of transformer.In recent years,the transformer insulation oil chromatography online monitoring sys-tem has been gradually applied,through the real-time monitoring of the composition changes in the insulation oil,the internal problems of the transformer can be found in advance,and the corresponding maintenance and treat-ment measures can be taken to improve the operation reliability and life of the transformer.
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