Combination of Non-contact and Contact Measuring Methods for Analyzing Structural Conditions of Dry Transformers-Reference-Cited by-同舟云学术

Combination of Non-contact and Contact Measuring Methods for Analyzing Structural Conditions of Dry Transformers

Published:2023-08-01 Issue:4 Volume:23 Page:154-162
ISSN:1335-8871
Container-title:Measurement Science Review
language:en
Short-container-title:

Author:

Gutten Miroslav¹,Korenciak Daniel¹,Karman Martin¹,Brncal Peter¹,Kucera Matej¹,Koltunowicz Tomasz N.²,Sulowicz Maciej³

Affiliation:

1. 1 Faculty of Electrical Engineering and Information Technology , University of Zilina , 8215/1 Univerzitna, 01026 Zilina , Slovakia

2. 2 Department of Electrical Devices and High Voltage Technology, Faculty of Electrical Engineering and Computer Science , Lublin University of Technology , 38A, Nadbystrzycka Str., 20-618 Lublin , Poland

3. 3 Department of Electrical Engineering , Cracow University of Technology , 24, Warszawska Str ., Kraków , Poland

Abstract

Abstract The article describes the non-contact and contact analysis of 1-MVA dry power transformers with epoxy-resin insulation using an acoustic camera and frequency analyzer with automatic sweeping for low-middle frequency areas. Power transformers are most commonly used for construction component (core, windings, taps) analysis. The electrical, non-rotating machine generates electromagnetic and acoustic emissions that can be used to analyze dry transformers during their operation. Non-contact online diagnostic methods have many advantages over offline methods because it is not necessary to shut down the transformer, and also, the condition and behaviour of the machine are analyzed during its normal operation. The article presents the analysis and comparison of structural parts of the distribution dry transformers of the same type and power. The problem of insufficient or incorrect clamp-screw connection was identified using the SFRA (Sweep Frequency Response Analysis) method.

Publisher

Walter de Gruyter GmbH

Subject

Instrumentation,Biomedical Engineering,Control and Systems Engineering

Link

https://www.sciendo.com/pdf/10.2478/msr-2023-0020

Reference53 articles.

1. Orman, M., Pinto, C. T. (2013). Usage of acoustic camera for condition monitoring of electric motors. IEEE International Conference of IEEE Region 10 (TENCON 2013). IEEE, 1-4. https://doi.org/10.1109/TENCON.2013.6718909

2. Borucki, S., Cichon, A., Subocz, J. (2012). Detection of partial discharges in transformer insulation bushings using acoustic emission method. Przeglad Elektrotechniczny, 88 (4A), 18-21. https://doi.org/10.2478/v10048-011-0030-1

3. Cichon, A., Berger, P. (2014). Possibility of using acoustic acoustic emission method for testing load tap changers during normal operation of the transformer. In International Conference on High Voltage Engineering and Application (ICHVE). IEEE. https://doi.org/10.1109/ICHVE.2014.7035479

4. Boczar, T., Borucki, S., Cichon, A., Zmarzly, D. (2009). Application possibilities of artificial neural networks for recognizing partial discharges measured by the acoustic emission method. IEEE Transactions on Dielectrics and Electrical Insulation, 16, 214-223. https://doi.org/10.1109/TDEI.2009.4784570

5. Kunicki, M., Cichon, A. Borucki, S. (2016). Study on descriptors of acoustic emission signals generated by partial discharges under laboratory conditions and in on-site electrical power transformer. Archives of Acoustics, 41 (2), 265-276. https://doi.org/10.1515/aoa-2016-0026