Research on construction strategy and key technology of intelligent system for drytype transformer

In view of the current situation of low intelligence and inconvenient operation and maintenance of drytype transformer in operation and maintenance, considering many factors, the construction strategy of intelligent dry-type transformer is proposed. According to the similarities and differences of application requirements, three differentiated intelligent schemes of basic type, enhanced type and full sense enhanced type are designed. In order to support the intelligent function of dry-type transformer, the core algorithms such as on-line monitoring data preprocessing method, fault early warning, high-temperature anomaly processing and transformer life prediction of intelligent dry-type transformer are studied, and the specific implementation method is put forward. Finally,combined with the IOT sensing terminal, the function is verified on the 10 kV dry-type transformer. The results show that it can realize equipment state sensing, health assessment and energy efficiency management, support the intelligent operation and maintenance of equipment, and has great application significance and promotion prospect.