A5043018241- High voltage insulation and dielectric phenomena
- Advanced Cellulose Research Studies
- Power Transformer Diagnostics and Insulation
- Dielectric materials and actuators
North China Electric Power University
2022-2024
The hot pressing parameters and fiber ratio have an important influence on the dielectric properties of aramid insulating paper. In order to deeply explore its mechanism behind it, papers were made with different temperatures pressures as well ratios. Its tightness, constant, AC breakdown strength tested, microstructure was analyzed by scanning electron microscopy. It found that increase in temperature, pressure, fibrid content, overall constant paper showed a slight upward trend, while...
Abstract The fibrids in aramid insulation paper exhibit good adhesion ability. However, the effects of morphology on mechanical and electrical properties remains poorly understood. Aramid with different morphological structures were prepared by modifying preparation process, then they used to fabricate composite under same condition. results showed that increasing shear rate solution concentration affected magnitude force double diffusion thus affecting average length, specific surface area,...
Abstract TiO 2 nanoparticles can improve the electrical performance of oil paper insulation. In this study, 10 nm were prepared and dispersed into transformer oil, then immerse pressboards in it to obtain nanofluid impregnated (NP). Its thermal aging was accelerated together with reference sample at 130°C for 36 days. Analyzing acid value polymerization degree, surface topography, AC breakdown strength, flashover characteristics potential decay characteristics. It observed that reduce...