Journal of Nanotechnology / 2016 / Article / Tab 3

Research Article

Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil

Table 3

Breakdown results of pure oil and different types of nanofluids under negative lightening impulse voltage.

Nanoparticles concentration (%w/v)Fe3O4TiO2Al2O3
Time to breakdown (µs)Average streamer velocity (km/s)Time to breakdown (µs)Average streamer velocity (km/s)Time to breakdown (µs)Average streamer velocity (km/s)

023.700.6323.700.6323.700.63
521.710.6922.040.6820.020.74
1019.980.7521.050.7118.260.82
2018.860.8019.610.7617.110.87
4016.700.9018.030.8315.800.95

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