A Review on Oil-Based Nanofluid as Next-Generation Insulation for Transformer Application

Table 5

List of AC breakdown nanofluid based-natural ester oils.

Ref.	Nanomaterial	Diameter size (nm)	Improvement of breakdown (%)
[95]	Ba0.85Ca0.15Zr0.1Ti0.9O3	<50	+20.00
[96]	SiO2	836	+21.55
[97]	Al2O3	<50	+47.05
[98]	TiO2	20	+25.00
[99]	Eggshell nanopowder	—	+38.33
[100]	Fe3O4	15-20	+42%
[101]	TiO2	<21	+20.60
[102]	Fe3O4	30	+19.84
[103]	TiO2; ZnO; CuO	—	+44.00; +32.00; +11.00