Peek into the October Edition of Transformers Magazine!
MAREK SZROT ET AL.: PRELIMINARY ASSESSMENT OF THE TECHNICAL CONDITION OF THE POWER TRANSFORMER BASED ON REGULAR OIL TESTING
Image source: Energo Complex
Marek SZROT, Janusz PŁOWUCHA, Jan SUBOCZ, Patryk BOHATYREWICZ
Preliminary assessment of the technical condition of the power transformer based on regular oil testing
As the acquisition of operation data concerning the technical state of the transformer is limited during its lifetime, it is crucial to use all available oil test samples. The article presents an expert system based on the most common procedures performed during periodical maintenance – the oil tests.
A health index calculation method is described based on easily obtainable periodical oil condition data. The algorithm is tested on a population of 96 transformers working in the Polish power grid. The outcomes are compared with the expert analysis conducted with the use of much more advanced methods. The results show that an effective simplification of the initial assessment criteria can achieve satisfactory efficiency if the choice of weighting criteria for the selected parameters is appropriate.
Keywords: health index, management, population, transformer
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