- Tytuł:
- Application of the Acoustic Emission Method for Diagnosis of On-Load Tap Changer
- Autorzy:
-
Majchrzak, H.
Cichoń, A.
Borucki, S. - Powiązania:
- https://bibliotekanauki.pl/articles/176624.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
acoustic emission
partial discharge
transformer diagnostics - Opis:
- This paper provides an example of the application of the acoustic emission (AE) method for the diagnosis of technical conditions of a three-phase on-load tap-changer (OLTC) GIII type. The measurements were performed for an amount of 10 items of OLTCs, installed in power transformers with a capacity of 250 MVA. The study was conducted in two different OLTC operating conditions during the tapping process: under load and free running conditions. The analysis of the measurement results was made in both time domain and time-frequency domain. The description of the AE signals generated by the OLTC in the time domain was performed using the analysis of waveforms and determined characteristic times. Within the time-frequency domain the measured signals were described by short-time Fourier transform spectrograms.
- Źródło:
-
Archives of Acoustics; 2017, 42, 1; 29-35
0137-5075 - Pojawia się w:
- Archives of Acoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł