Combination of non-contact and contact measuring methods for analyzing structural conditions of dry transformers
Authors:
- Miroslav Gutten,
- Daniel Korenciak,
- Martin Karman,
- Peter Brncal,
- Matej Kucera,
- Tomasz N. Koltunowicz,
- Maciej Sulowicz
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 components (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 behavior 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.
- Record ID
- CUTeebce9e8f86348dab2092ea404185ade
- Publication categories
- ;
- Author
- Journal series
- Measurement Science Review, ISSN 1335-8871
- Issue year
- 2023
- Vol
- 23
- No
- 4
- Pages
- 154-162
- Other elements of collation
- fot.; rys.; schem.; wykr.; Bibliografia (na s.) - 160-162; Bibliografia (liczba pozycji) - 53; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 23, No. 4
- Keywords in English
- diagnostics, dry distribution transformer, acoustic emission, frequency method
- ASJC Classification
- ; ;
- DOI
- DOI:10.2478/msr-2023-0020 Opening in a new tab
- URL
- https://sciendo.com/article/10.2478/msr-2023-0020 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 70
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTeebce9e8f86348dab2092ea404185ade/
- URN
urn:pkr-prod:CUTeebce9e8f86348dab2092ea404185ade
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.