Investigation of Partial Discharge Within Generator Coil Bars on the Ground of Acoustic Emission Method

• Autorzy: Witos, F.
• Języki publikacji: EN

Abstrakty

EN

Investigations of partial discharges withis bars of generator coils have been made by means of acoustic emission method. Two ways of analysis of shapes of obrained AE amplitude distributtions are presented. The first cosists in definition and calculations of advanced AE desriptions, whichn can distinguish deformation process. The second way is based on Kohonen neuron network, used to distinguish and classify of images. The result of both mathod of analysis are compared with the measuremants of the apparent charge which have been curried out simultaneously to EA investigations.

Słowa kluczowe

EN

acoustic emission; partial discharge; amplitude distribution; descriptors; neural network; electric apparent charge

• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 2002
• Tom: Vol. 23
• Strony: 433-442
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Witos, F.

• Institute of Physics, Silesian University of Technology Bolesława Krzywoustego 2, 44-100 Gliwice, Poland,

Bibliografia

• 1. AE - sources, methods and applications. IPPT PAN Warszawa , 1994 (in Polish)
• 2. Cesari S., Hantouche C., Muraoka T., Pouliquen B., “PD measurements as a diagnostic tool”, ELECTRA, 181, 25-51 (1998)
• 3. Florkowska B., Partial discharge in high voltage insulating systems - analyses of mechanisms, forms and images. IPPT PAN, Warszawa, 1997 (in Polish)
• 4. Jemielniak K., “Some aspects of AE signal pre-processing”, J.Mat. Proces. Technol., 109 ,242-247,(2001)
• 5. Witos F., Opilski Z., Gacek Z., Maźniewski K, “Comparative investigations on PD generated in a model source”, Second Int. Conf.on Dielectric & Insulation, High Tatras 2000, 126-131
• 6. Witos F., Gacek Z., Opilski A, Otręba H, Urbańczyk M, „Investigations on Partial Discharges Generated by Modelled Source with a Bushing by Means of Electric and Acoustic Method”, Molecular and Quantum Acoustics, 2J., 311-317 (2000)
• 7. Witos F., Gacek Z., Opilski A., “The new AE descriptor for modelled sources of PD”, Arch. of Acoustics, 27, 1, 65-77 (2002 )
• 8. Witos F, Gacek Z., „Investigations of PDs in Generator Coil Bars by Means of AE: Acoustic Images and Location”, CIGRE, 39th Int. Session, No 11-101, Paris (2002)