An Active Defense Technology Scheme of Oil-Filled Transformer Based on Partial Discharge Information Characteristics

Oil-filled transformer equipment in the internal defects of the initial discharge, will release different characteristics of the discharge information, if the rational use of the discharge information, will be able to realize the transformer failure time node forward, reduce the probability of transformer burn damage. In this paper, an active defense technology scheme of oil-filled transformer based on the characteristics of partial discharge information is proposed. Through the extraction of ultrasonic, high-frequency and UHF information from partial discharge information, the characteristics of partial discharge parameters of transformers in different fault stages are summarized, and the corresponding active defense strategy is formulated. At the same time, it reviews and analyzes the existing transformer protection technology, points out its shortcomings and gives solutions, and improves the accuracy and reliability of data transmission between sensor data acquisition, data analysis and strategy execution. The effectiveness of the new scheme is verified by experiments. In addition, the project of this paper is implemented through the pilot application, and its research results are successfully applied, which has important significance and value for the protection and exploration of large oil-filled equipment.