Autors: Petkova, N. S., Nakov, P., Mladenov, V. M.
Title: Power transformer's state analisis at partial discharges availability
Keywords: Availability; Electric windings; Oil filled transformers; Pa

Abstract: Power transformers in the power electric system are of particular significance for the reliability and emergency free supply of electric power consumers. Up-to-date monitoring systems for power transformers support taking measurements and analysis of: temperature of the hot spots in the winding (calculated automatically by the system); gas and moisture contents in the oil inside transformer's tank; winding insulation humidity and other important parameters, but do not render an account of the most important criteria for their state, and namely, partial discharges availability. In this article a method for locating the place of origin of the partial discharges in the three-dimensional space is described. Future efforts are to be dedicated on finding an algorithm for on-line measurement and locating of the partial discharge

References

    Issue

    Proceedings of the 4th International Scientific Symposium on Electric Power Engineering, ELEKTROENERGETIKA, pp. 318-320, 2007, Slovakia, ISBN ISBN: 978-1-63266-981-0

    Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus