Sökning: "polymeric insulation"
Visar resultat 6 - 10 av 28 avhandlingar innehållade orden polymeric insulation.
6. Polyethylene Blends, a Material Concept for Future HVDC-cable Insulation
Sammanfattning : High-voltage cables are a critical component of tomorrow’s power grids that seamlessly integrate hydro, wind and solar power. Further improvements in transmission capacity of both high-voltage alternating- and direct-current, HVAC and HVDC, cables are likely reached through improved insulation materials. LÄS MER
7. Polymeric materials in nuclear power plants : Lifetime prediction, condition monitoring and simulation of ageing
Sammanfattning : Nuclear power plants generate a significant part of the world’s electrical power consumption. However, many plants are nearing the end of their designed lifetime, and to extend the lifetime it is important to verify that every component can withstand the added service time. This includes polymeric materials, which become brittle with time. LÄS MER
8. Electrical Charges on Polymeric Insulator Surfaces and their Impact on Flashover Performance
Sammanfattning : Utilization of remotely located sustainable energy resources such as solar, wind and hydro calls for further developments of long-distance electric power transmissions operating at ultra-high voltage (UHV) levels which may exceed 1000 kV ac and 800 kV dc utilized today. It is foreseen that insulation of such transmission systems is to be based on polymeric materials that can provide a number of technical benefits over traditionally used glass and porcelain based insulation. LÄS MER
9. Evaluating Resistance to Corona and Ozone in Polymeric Materials for High Voltage Outdoor Applications
Sammanfattning : Resistance to corona discharges and ozone, the well known ageing factors for polymeric materials used in outdoor insulation, has been listed as being of great importance among twelve properties identified by CIGRE WG D1.14 – Material Properties for Non-ceramic Outdoor Insulation. LÄS MER
10. Effects of Corona and Ozone Exposure on Properties of Polymeric Materials for High Voltage Outdoor Applications
Sammanfattning : Despite the past four decades of service experiences with polymeric insulators in power systems all over the world, an adequate standard allowing for proper selection of polymeric materials for applications in high voltage outdoor environments has still been lacking. Therefore CIGRE Working Group D1. LÄS MER