Title :
Polymer/air interface space charge determined by a pressure wave propagation technique
Author :
Ming, Li ; Liu, Rongsheng ; Leijon, Mats ; Windmar, Dan ; Fromm, Udo
Author_Institution :
ABB Corp. Res., Vasteras, Sweden
Abstract :
The application of high DC voltage to a polymer/air insulation system can result in space charges on the interface. The space charges can cause significant distortions of the electric field distribution, which may trigger a surface flashover or breakdown in the insulation system. In the present investigation, an attempt has been made to measure the space charge on a polyester/air and PTFE/air interface by using a pressure wave propagation technique (PWP) under DC voltage
Keywords :
air insulation; charge measurement; dielectric measurement; interface phenomena; organic insulating materials; polymers; space charge; DC voltage; PTFE; breakdown; electric field distribution; interfacial space charge measurement; polyester; polymer/air insulation system; pressure wave propagation; surface flashover; Charge measurement; Current measurement; Dielectrics and electrical insulation; Distortion measurement; Electric breakdown; Flashover; Plastic insulation; Polymers; Space charge; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.617616
