The 8AE-PD computer measurement system for registration and analysis of acoustic emission signals generated by partial discharges in oil power transformers

• Autorzy: Witos Franciszek , Opilski Zbigniew , Szerszeń Grzegorz , Setkiewicz Maciej

Identyfikatory

DOI

10.24425/mms.2019.128355

• Języki publikacji: EN

Abstrakty

EN

A computer measurement system, designed and built by authors, dedicated to location and description of partial discharges (PD) in oil power transformers examined by means of the acoustic emission (AE) method is presented. The measurement system is equipped with 8 measurement channels and ensures: monitoring of signals, registration of data in real time within a band of 25-1000 kHz in laboratory and real conditions, basic and advanced analysis of recorded signals. The basic analysis carried out in the time, frequency and time-frequency domains deals with general properties of the AE signals coming from PDs. The advanced analysis, performed in the discrimination threshold domain, results in identification of signals coming from different acoustic sources as well as location of these sources in the examined transformers in terms of defined by authors descriptors and maps of these descriptors on the side walls of the tested transformer tank. Examples of typical results of laboratory tests carried out with the use of the built-in measurement system are presented.

Słowa kluczowe

EN

acoustic emission; partial discharge; multichannel system; acoustic signal detection; acoustic signal processing; signal analysis; voltage preamplifier

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2019
• Tom: Vol. 26, nr 2
• Strony: 403--418
• Opis fizyczny: Bibliogr. 38 poz., rys., wykr.

Twórcy

autor

Witos Franciszek

• Silesian University of Technology, Department of Optoelectronics, B. Krzywoustego 2, 44-100 Gliwice, Poland

autor

Opilski Zbigniew

• Silesian University of Technology, Department of Optoelectronics, B. Krzywoustego 2, 44-100 Gliwice, Poland

autor

Szerszeń Grzegorz

• State Higher Vocational School, Department of Electronics and Telecommunications, A. Mickiewicza 8, 33-100 Tarnów, Poland

autor

Setkiewicz Maciej

• Silesian University of Technology, Department of Optoelectronics, B. Krzywoustego 2, 44-100 Gliwice, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).