Loading [MathJax]/extensions/MathZoom.js
Pingkai Jiang - IEEE Xplore Author Profile

Showing 1-7 of 7 results

Results

Boron nitride nanosheets (BNNSs) have gained extensive attention for nanodielectrics because of their large band gap and ultra-high thermal conductivity. Generally, different electrical applications require different sizes BNNSs. Although sonication-assisted liquid-phase exfoliation (SALPE), the commonly used method, can exfoliate BNNSs from bulk hexagonal boron nitride (h-BN) flakes effectively, ...Show More
Two groups of fresh full size stator bars of an 18 kV/180 MW generator were subjected to accelerated thermomechanical and electrical-thermal combined stress aging respectively to investigate the deterioration of groundwall insulation. The dissipation factor measurement was performed during the thermomechanical stress aging together with tap testing and dimension measurement. In addition, the dissi...Show More
Poly(methyl methacrylate) (PMMA) nanocomposites containing BaTiO3 were prepared by in situ atom transfer radical polymerization (ATRP). The nanocomposites show significantly increased dielectric constant when compared with the pure PMMA, whereas the dielectric loss of the nanocomposite is kept at the same low level as that of the pure PMMA. For example, at 1000 Hz, the dielectric constant increase...Show More
This paper reports on the effects of nano-BaTiO3 particles on the dielectric, thermophysical (thermal conductivity) and mechanical properties of ethylene-vinyl acetate (EVM) elastomer/BaTiO3 microcomposites. The EVM composites with nano-, micro- and nano/micro hybrid BaTiO3 fillers have been prepared by melt compounding. The results showed that the addition of nano-BaTiO3 particles to micro- BaTiO...Show More
High field conduction of the composite of nano Ag/low-density polyethylene (LDPE) and pure polyethylene is studied, as well as the effect of the contents of nano Ag on high field conduction. Schottky effect, Poole-Frenkel effect, space-charge-limited conduction (SCLC), and ion hopping conduction are used to fit the results. It is pointed out that both space-charge-limited conduction and Poole-Fren...Show More
Double-solution mixture method was employed in the preparation of the composite of Low Density Polyethylene/Nano-silver. Space charge distributions in samples with different nano-silver concentrations were measured using the pulsed electro-acoustic (PEA) method. In the experiment, samples were tested under three different levels of electrical stress, respectively: 10kV/mm, 30kV/mm and 50kV/mm. Dis...Show More
The flashover along an insulating spacer surface occurred with probability under abrupt DC voltage application. A special test procedure has been proposed for the measurement of the flashover voltage with low probability (LPFV), which is used as a minimum level for the comparison of cases with and without pre-charging. In the uniform field the surface of a cylindrical polytetrafluoroethylene (PTFE...Show More