Title :
In situ monitoring of the degradation of insulating oil under AC voltage
Author :
Aka-Ngnui, T. ; Benounis, M. ; Jaffrezic-Renault, N. ; Stevenson, I. ; Beroual, A.
Author_Institution :
Ecole Centrale de Lyon, CEGELY-UMR CNRS, Ecully, France
Abstract :
A method to follow the in situ ageing of transformer oil under operation is presented. It is based on the variation of the refractive index of oil due to the presence of gases resulting from partial discharges and that may lead to failure of transformer in the long term.
Keywords :
failure analysis; partial discharges; refractive index; transformer oil; ageing; insulating oil; partial discharges; refractive index; transformer oil; Aging; Degradation; Gases; Monitoring; Oil insulation; Partial discharges; Petroleum; Power transformer insulation; Refractive index; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2005. CEIDP '05. 2005 Annual Report Conference on
Print_ISBN :
0-7803-9257-4
DOI :
10.1109/CEIDP.2005.1560669
