Performance Assessment of Cellulose Paper Impregnated in Nanofluid for Power Transformer Insulation Application: A Review

Insulation cellulose paper is a basic measure for power transformer’s remaining useful life, and its advantageous low cost, electrical, mechanical properties have made it an extensive insulation system when impregnated in dielectric liquid. Cellulose deteriorates as result of ageing due to some chemical reactions like pyrolysis (heat), hydrolysis (moisture), oxidation (oxygen) that affects degree polymerization. The condition analysis has been major concern since the collection samples from operational transformer almost impossible. However, chemicals generated during deterioration, which were dissolved liquid, used alternatively this purpose they show direct correlation with paper’s Furthermore, online non-destructive measurement polymerization by optical sensors proposed recently but yet be available market generally acceptable. In mitigating magnitude assessments proposed. researchers successfully enhanced insulating performance oil-impregnated addition various types nanoparticles. This study reviews assessment oil-paper composite effect nanoparticles on tensile strength electrical insulation. It includes not only significant tutorial elements also analyses, open door further research topic.