A5017922403- High voltage insulation and dielectric phenomena
- Characterization and Applications of Magnetic Nanoparticles
- Thermal Analysis in Power Transmission
- Power Transformer Diagnostics and Insulation
- Magnetic Bearings and Levitation Dynamics
- Aerosol Filtration and Electrostatic Precipitation
- Electrical Fault Detection and Protection
- Tribology and Lubrication Engineering
- Advanced Data Storage Technologies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Lightning and Electromagnetic Phenomena
- Particle Dynamics in Fluid Flows
- Embedded Systems and FPGA Design
- Geotechnical Engineering and Underground Structures
- Landslides and related hazards
- Granular flow and fluidized beds
- Power Systems and Technologies
- Lattice Boltzmann Simulation Studies
- Pickering emulsions and particle stabilization
- Underground infrastructure and sustainability
Wenzhou University
2023-2024
State Grid Nanjing Power Supply Company (China)
2022-2023
Abstract A ferrofluid seal is a rotary widely used in the chemical industry, shipbuilding, aerospace, aviation, and other fields, demonstrating various advantages, such as high reliability, low wear, leakage rate. The reason for sealing that ring isolates sealed gas from atmosphere. Hence, boundary deformation fluctuation are two significant factors to consider design of seal. However, wrapped shell pole shoe, which poses challenge direct observation. In this paper, an experimental device...
In three-phase three-post insulators, air gaps and crack defects are important sources of partial discharge surface flashover. Using finite element analysis software, this study created a three-dimensional simulation model to investigate the effect these on electric field distribution. The effects different sizes locations distribution were then methodically investigated. According results, most significant distortion is caused by gap close phase A conductor, exacerbated shorter lengths. Air...
The magnetization of nano ferrofluid is lower than that micrometer magnetorheological fluid, which limits its application in seals, dampers, and various other fields. To enhance the performance, this paper incorporates large-diameter magnetic particles into to strengthen chaining among nanoparticles. A matrix discrete element method model constructed investigate strengthening mechanism on nanoparticle chaining. Additionally, chain formation process involving both large small influence...
Electrical treeing is an inevitable phenomenon during the operation of cross-linked polyethylene (XLPE) cables installed in underground and humid environment, which direct reason for insulation failure. This work focuses on issue electrical trees XLPE growth stage recognition stage. The partial discharge (PD) characteristics different tree modes were recorded form φ-q-n patterns. A model considering PD process was investigated. energy computed, relationship between analyzed. method stages...
Abstract The high-voltage cable line plays an important role in the transmission of electricity city network. effective grounding is great significance to ensure normal operation system. There increasing demand for intelligence boxes cables. In this paper, aiming at heating problem box, overall design scheme and key technology intelligent box are proposed. has various electrical functions traditional box. It also circulation monitoring, waterproof, fireproof, anti-theft, alarm functions....
Laying power cables in existing tunnels can not only save land resources, but also improve the utilization rate of urban space. At same time, it has important practical significance for expanding construction and development space grid. Therefore, order to assess safety risk level laid built tunnels, assessment index system laying using is established, which contains 19 evaluation indexes, involving 8 sub-systems such as cable tunnel structure, lighting supply system. Finally, fuzzy analytic...
The temperature field and losses generated during the operation of high voltage cables are an important aspect cable motion. However, existing studies have not been able to examine actual laying cables, so in this paper horizontal pinnacle investigated. Firstly, causes analyzed, calculation equations boundary conditions different regions proposed. Secondly, loss method for is derived based on Maxwell's set equations. Finally, studied through finite element simulation, single three-phase...
The electric field distortion and charge movements are effected by polarity-reversal voltage in HVDC cable system. can be uniformed the semiconductive material movement characteristics also regulated. This paper investigates influence of on SiR/SiC composites for DC accessory SiR insulation at various temperatures. process under temperature ranges from 30 to 90 °C obserced surface potential decay (SPD) method. Studies have shown that increase content SiC improve conductivity omposites....