Mutian Chen

TL;DR: In this paper, a TiO2 semiconductive nanoparticles with a large relaxation time constant is added into transformer oil to form semiconductorive nanofluids (SNFs), with the aim of enhancing insulating characteristics.

TL;DR: In this article, it was found that electron shallow trap density and charge decay rate are greatly increased in nanofluids, i.e., fast electrons may be converted to slow electrons by electron trapping and de-trapping in shallow traps of nanoflids, resulting in improved breakdown performance compared to that of pure transformer oils.

TL;DR: In this article, the authors showed that TiO2 nanoparticles can accelerate the charge dissipation rate and uniform the electric field and increase the shallow trap density in the ester-based nanofluid.

TL;DR: In this paper, a TiO2 nanoparticle with good dispersibility and stability in transformer oil was prepared and used to modify insulating property of aged oil, and the results of trap characteristics reveal that the modification of nanoparticle can not only greatly lower the shallow trap energy level in the aged oil but also increase the trap density, resulting in improved charge transportation via trapping and de-trapping in shallower traps.

TL;DR: In this paper, the authors measured the charge accumulation and decay characteristics of transformer oil-based nanofluids with TiO 2 semiconductive nanoparticles (SNFs) at variable relative humidity from 20% to 80%.