Title :
Partial discharge current pulse waveform analysis (PD-CPWA) based on PD mechanisms in solid and gas media
Author :
Hayakawa, N. ; Sugimor, Y. ; Okubo, H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Nagoya Univ., Japan
Abstract :
This paper introduces a novel technique for partial discharge (PD) measurement and analysis: PD-CPWA (PD current pulse waveform analysis). PD-CPWA focuses on the PD current pulse waveform and its time transition from PD inception to breakdown (BD), which is closely related to PD mechanisms in electrical insulating materials. In this paper, the concept and principle of PD-CPWA are described, and the applications of PD-CPWA to PD characteristics of (1) epoxy spacer samples under thermal and electric combined stresses in GIS and (2) metallic particles contaminated in SF6 gas on epoxy spacers in GIS are introduced.
Keywords :
SF6 insulation; electric breakdown; gas insulated switchgear; insulating materials; partial discharge measurement; GIS; PD mechanisms; SF6 gas; breakdown; electrical insulating materials; epoxy spacer; gas media; partial discharge current pulse waveform analysis; partial discharge measurement; solid media; Current measurement; Dielectrics and electrical insulation; Electric breakdown; Geographic Information Systems; Partial discharge measurement; Partial discharges; Pollution measurement; Pulse measurements; Solids; Thermal stresses;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193500
