An algorithm for transformer hot spot temperature determining

• Autorzy: Jokic S. , Mijic D. , Matic P.

Identyfikatory

DOI

10.15199/48.2017.06.32

Warianty tytułu

PL

Algorytm do wyznaczania temperatury hot spotu transformatora

• Języki publikacji: EN

Abstrakty

EN

This paper presents an algorithm for the winding temperature change estimation and the hot spot temperature determining of an oil filled power transformer. The proposed algorithm is based on the functional relation between the change of winding resistance and the measured oil temperature. The temperature changes approximation is based on the method of least squares. The proposed method is applied in the software for a field test instrument and verified by the field experiments.

PL

W artykule przedstawiono algorytm służący do szacowania zmian temperatury uzwojeń oraz wyznaczania temperatury najgorętszego miejsca (ang. hot spot) w transformatorze wypełnionym olejem. Proponowany algorytm oparty jest na funkcjonalnej zależności pomiędzy zmianą rezystancji uzwojenia a mierzoną temperaturą oleju. Aproksymacja zmiany temperatury bazuje na metodzie najmniejszych kwadratów. Zaproponowana metoda stosowana jest w oprogramowaniu przyrządu testującego i zweryfikowana została eksperymentalnie.

Słowa kluczowe

EN

algorithm; extrapolation; hot spot; temperature measurement; transformer

PL

algorytm; ekstrapolacja; pomiar temperatury; transformator

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2017
• Tom: R. 93, nr 6
• Strony: 141--145
• Opis fizyczny: Bibliogr. 20 poz., tab., wykr.

Twórcy

autor

Jokic S.

• University of East Sarajevo Faculty of Electrical engineering, Vuka Karadzica 30, 71123 East Sarajevo, Bosnia and Herzegovina

autor

Mijic D.

• University of East Sarajevo Faculty of Electrical engineering, Vuka Karadzica 30, 71123 East Sarajevo, Bosnia and Herzegovina

autor

Matic P.

• University of Banja Luka, Faculty of Electrical Engineering, Patre 5, 78000 Banja Luka, Bosnia and Herzegovina

Bibliografia

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• [3] IEC Std 60076-7, Power Transformers, Part 7: Loading guide for oil-immersed power transformers, (2009)
• [4] IEEE Std C57.12.90, Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers, (2010)
• [5] IEEE Std 1538-2000, „IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformers,” (2000)
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• [10] IEEE Std 62-1995. IEEE Guide for Diagnostic Field Testing of Electric Power Apparatus-Part 1, (2005)
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