Central Power Research Institute, Bangalore, India.
The concentration of furans in the mineral insulating oil of a power transformer is a good indicator of the condition of the cellulosic materials such as paper, pressboard, and cotton materials used both as electrical insulation and as mechanical support. The condition of the cellulosic materials is vital, because these materials are the limiting factor on the life of a transformer. Over the last three years, the Liquid Dielectrics Laboratory at CPRI conducted a massive survey of the concentration of furans in the mineral insulating oils of more than eight hundred operating transformers. Remaining life assessment of transformers is attempted based on the percentile population of furans.
Power Transformers, Cellulose Insulation, Loading Guide, Mineral Oil, Furans Degree of Polymerization, Percentile Population, Remaining Life Assessment
