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2014 | 125 | 6 | 1355-1359
Article title

Analysis of Interference Signals Generated by Vibroacoustic Vibrations of Transformer Cores

Content
Title variants
Languages of publication
EN
Abstracts
EN
The article deals with the subject matter referring to the interference that may accompany measurements of vibroacoustic signals, generated by electric power transformers, taken by using the acoustic emission method under industrial conditions. Paper concerns measurement and analysis of internal, acoustic type disturbances, including the magnetostrictive vibrations of plate sets within the transformer core, caused by changes in the magnetic flux. Paper presents measurement results of acoustic interfering signals and results of analyses made in the frequency and time-frequency domains. Power spectral density, MUSIC pseudospectra, two- and three-dimensional short time Fourier transform spectrograms, continuous wavelet transform scalograms, discrete wavelet transform, and quantities of energy transferred are included in the paper.
Keywords
EN
Year
Volume
125
Issue
6
Pages
1355-1359
Physical description
Dates
published
2014-06
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv125n628kz
Identifiers
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