Search for dissertations about: "Voltage decay"
Showing result 1 - 5 of 28 swedish dissertations containing the words Voltage decay.
-
1. Characterization of Different Interface Types for HVDC Extruded Cable Applications
Abstract : In extruded HVDC cable systems a variety of interface types can be found, and the interfacial properties depend on the application within the system. Such applications can be joints, terminations or the cable itself and they will all have different material combinations and manufacturing methods. READ MORE
-
2. Electrical Charges on Polymeric Insulator Surfaces and their Impact on Flashover Performance
Abstract : 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. READ MORE
-
3. Surface Charge Dynamics on Polymeric Insulating Materials for High Voltage Applications
Abstract : To meet increasing demands in electric energy, it is essential to enhance production of electricity from renewable energy sources (solar, wind and hydro). Such generation sites, however, are usually separated from consumption sites by long distances. READ MORE
-
4. Electrical Charges on Polymeric Insulator Surfaces and their Impact on Withstand Performance
Abstract : Use of polymeric materials for high voltage outdoor insulation systems is increasing continuously. Insulating polymers gradually replace traditional materials like porcelain and glass and become dominant at ultra high voltages, e.g., in 1000 kV ac and 800 kV dc overhead power transmissions, which are presently being developed. READ MORE
-
5. Partial Discharge Analysis at Arbitrary Voltage Waveform Stimulus
Abstract : Partial discharge (PD) detection is widely used to diagnose the defects and degradation in an electrical insulation system. Generally, PD are measured with 50 Hz AC sinusoidal voltage in the on-line situation, but can also be detected at other voltage stimulus in some off-line situations. READ MORE