Title :
Discharge condition and surface charge distribution under repetitive bipolar impulses
Author :
Kimura, K. ; Itaya, S. ; Ushirone, S. ; Hikita, M. ; Bito, W.
Author_Institution :
Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
This paper discusses behavior of partial discharge (PD) under repetitive bipolar impulse voltage. Using different waveforms of square voltages, PD inception and elimination voltages (PDIV/PDEV) have been investigated in detail on 50 μm air gap between J-shaped enameled wire and plane electrode with polyimide film. The change of charge on the capacitor in series with samples is found as good index for PD occurrence under repetitive impulses. The surface charge distributions are also measured to discuss the change of discharge condition under repetitive square voltages.
Keywords :
air gaps; electrodes; partial discharges; polymer films; surface discharges; wires (electric); 50 micron; J-shaped enameled wire; PD inception; air gap; bipolar impulses; capacitor; partial discharge; plane electrode; polyimide film; square voltage waveforms; surface charge distribution; Charge measurement; Current measurement; Electrodes; Electrostatic measurements; Partial discharges; Pulse measurements; Space vector pulse width modulation; Surface discharges; Voltage; Wires;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218606
