Title :
Comparison of partial discharge activity in mineral oil and bio-degradable oil
Author :
Lai, K.X. ; Phung, B.T. ; Blackburn, T.R. ; Muhamad, N.A.
Author_Institution :
Sch. of Electr. Eng. & Telecommun. Sydney, Univ. of New South Wales, Sydney, NSW
Abstract :
This paper investigates the partial discharge activity and characteristics in mineral oil and bio-degradable oil. Both types of oils tested are commercial products and commonly used in transformers. Tests were done on laboratory models using paper insulated conductor sections to simulate transformer windings and needle-plane configuration to simulate corona in transformer. The laboratory models are insulated with both types of oils, with and without moisture. The overall partial discharge activity was analysed in terms of the phase resolved distribution. Also the individual partial discharge waveforms were analysed in the time and frequency domain.
Keywords :
conductors (electric); corona; frequency-domain analysis; moisture; partial discharges; power transformers; time-domain analysis; transformer oil; transformer windings; bio-degradable oil; corona; mineral oil; paper insulated conductor; partial discharge activity; phase resolved distribution; transformer windings; Biodegradation; Conductors; Corona; Laboratories; Minerals; Partial discharges; Petroleum; Power transformer insulation; Testing; Windings; bio-degradable oil; mineral oil; partial discharge;
Conference_Titel :
Power Engineering Conference, 2007. AUPEC 2007. Australasian Universities
Conference_Location :
Perth, WA
Print_ISBN :
978-0-646-49488-3
Electronic_ISBN :
978-0-646-49499-1
DOI :
10.1109/AUPEC.2007.4548039
