DocumentCode
986136
Title
Acoustic energy shifting in transformer oil at different temperatures
Author
Wang, Xiaodong ; Li, Baoqing ; Xiao, Zhixiong ; Russo, Onofrio L. ; Roman, Harry T. ; Chin, Ken ; Farmer, Kenneth R.
Author_Institution
New Jersey Inst. of Technol., Newark, NJ, USA
Volume
20
Issue
3
fYear
2005
fDate
7/1/2005 12:00:00 AM
Firstpage
2356
Lastpage
2357
Abstract
In this letter, partial discharge (PD) acoustic waves for different temperatures have been detected using a piezoelectric acoustic sensor. The experiments results are analyzed using the Fast Fourier Transform (FFT). Calculations are shown to agree with the experimental results. This acoustic energy (AE) analysis appears to be an effective method to monitor the temperature of the transformer oil.
Keywords
acoustic transducers; fast Fourier transforms; partial discharges; piezoelectric transducers; power transformer insulation; transformer oil; acoustic energy shifting; fast Fourier transform; partial discharge acoustic waves; piezoelectric acoustic sensor; temperature monitoring; transformer oil; Acoustic sensors; Acoustic signal detection; Acoustic waves; Electrodes; Frequency; Oil insulation; Partial discharges; Petroleum; Temperature sensors; Viscosity; Energy shifting; partial discharge (PD); temperature;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/TPWRD.2005.844238
Filename
1458917
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