Title :
Study on application of wavelet analysis for degradation diagnosis of partial discharge in a void
Author :
Masanori, M. ; Okano, T. ; Nishimoto, S. ; Kitani, I. ; Arii, K.
Author_Institution :
Fac. of Eng., Ehime Univ., Matsuyama, Japan
Abstract :
Waveforms of partial discharge (PD) current and sound wave emission by PD are measured in a void between a polyethylene terephthalate (PET) film and an electrode. The measured waveforms of PD current and sound wave are transformed by Gaussian and Mexican hat wavelets. The relation between the obtained results and degree of insulation degradation is discussed. As a result, it was clear that wavelet analysis results could be used in degradation diagnosis of an insulator
Keywords :
acoustic emission testing; insulation testing; partial discharges; polyethylene insulation; polymer films; voids (solid); wavelet transforms; Gaussian wavelets; Mexican hat wavelets; PET film; degradation diagnosis; discharge current; insulation degradation; insulator; partial discharge; polyethylene terephthalate; sound wave emission; void; wavelet analysis; Current measurement; Degradation; Electrodes; Insulation; Partial discharge measurement; Partial discharges; Plastic films; Polyethylene; Positron emission tomography; Wavelet analysis;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1995. ICSD'95., Proceedings of the 1995 IEEE 5th International Conference on
Conference_Location :
Leicester
Print_ISBN :
0-7803-2040-9
DOI :
10.1109/ICSD.1995.523011
