Title :
Study on degradation diagnosis of partial discharge in a void by wavelet analysis
Author :
Mukai ; Okano ; Nishimoto ; Kitani ; Arii
Author_Institution :
Fac. of Eng., Ehime Univ., Matsuyama, Japan
Abstract :
Waveforms of partial discharge (PD) current and sound waves emitted by a PD are measured in a void between a polyethylene terephthalate (PET) film and an electrode. The measured waveforms are transformed by Gaussian and Mexican hat wavelets. The analyzed patterns are obtained on a plane using both time and frequency information. Then, the relation between the obtained results and the degree of insulation degradation is discussed
Keywords :
insulation testing; organic insulating materials; partial discharges; polymer films; voids (solid); wavelet transforms; Gaussian wavelets; Mexican wavelets; PET film; current waveform; insulation degradation diagnosis; partial discharge; polyethylene terephthalate; signal processing; sound wave; void; wavelet analysis; Current measurement; Degradation; Electrodes; Information analysis; Partial discharge measurement; Partial discharges; Pattern analysis; Plastic films; Polyethylene; Positron emission tomography;
Conference_Titel :
Electrical Insulating Materials, 1995. International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-88686-047-8
DOI :
10.1109/ISEIM.1995.496609
