Sökning: "electrical insulation"
Visar resultat 16 - 20 av 112 avhandlingar innehållade orden electrical insulation.
16. Partial Discharges Studied with Variable Frequency of the Applied Voltage
Sammanfattning : This thesis concerns partial discharge (PD) diagnostics withvariable frequency of applied voltage in the frequency range 1mHz - 400 Hz. The exploration of a new type of spectroscopythat combines partial discharge analysis and dielectricresponse is demonstrated. LÄS MER
17. Active insulation : possibilities of utilizing free charges in air
Sammanfattning : .... LÄS MER
18. Condition Monitoring of Stator Windings with a Networked Electric Drive
Sammanfattning : Electric drives are widely used in industry, where they are also part of the plant communication architecture. This architecture is challenged by the Industry 4.0 initiative that aims to make the devices in industrial plants more interconnected and with additional functionalities. LÄS MER
19. Surface Charge Dynamics on Polymeric Insulating Materials for High Voltage Applications
Sammanfattning : 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. LÄS MER
20. 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