油浸电力变压器主要由线圈、铁芯、套管、冷却装置和瓦斯保护等主要部分组成,其内具有较多的绝缘纸、支撑木、油和绝缘漆等有机物。变压器在运行时,如果内部发生绝缘击穿故障,强烈的电弧能使上述物质分解成气体。气体的主要成分是甲烷、乙烷、乙炔、氢、一氧化碳、二氧化碳和氧 Oil-immersed power transformers are mainly composed of coils, iron cores, bushings, cooling devices and gas protection and other major parts, which have more insulation paper, support wood, oil and insulating paint and other organic matter. Transformers in operation, if the internal insulation breakdown occurs, a strong arc can make the above substances break down into gas. The main components of the gas are methane, ethane, acetylene, hydrogen, carbon monoxide, carbon dioxide and oxygen