Title :
On-line detection and examination research on PD in GIS
Author :
Lijun, Jin ; Qing, Hu ; Mingrui, Zhang ; Zhe, Liu
Author_Institution :
Dept. of Electr. Eng., Tongji Univ., Shanghai, China
Abstract :
Faults related to metal particles and corona partial discharge (PD) often appear in HV apparatus in service. This leads the dielectric to aging or to breakdown. In this paper, measurements are made using UHF detection, conventional PD measurement and power phase analysis. The metal particles and corona discharge characteristic of a model GIS are researched. A new method for estimating the degree of the corona discharge is put forward. Then the discharge level of the UHF signal is estimated based on comparing UHF detection and conventional PD measurements.
Keywords :
ageing; condition monitoring; corona; fault diagnosis; partial discharge measurement; power apparatus; GIS device; HV apparatus; PD measurement; UHF detection; UHF signal estimation; corona partial discharge; dielectric aging; dielectric breakdown; metal particle faults; on-line detection; Aging; Corona; Dielectric breakdown; Dielectric measurements; Geographic Information Systems; Partial discharge measurement; Partial discharges; Phase measurement; Power measurement; UHF measurements;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193598
