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Life management of power oil transformer
Čechová, Karolína ; Froehling, Kenneth (oponent) ; Sedláček, Pavel (vedoucí práce)
To understand the significance of the life management process concerning power oil transformers, at first, it is essential to realise their role in the electrical grid. They are primarily used to interface step up and step down voltages in the transmission and distribution system according to the contemporary needs. The unreliability of power oil transformers can disrupt the stability of the electric power supply, which represents significant economic and technical losses for companies that manage this type of equipment. Therefore, I decided to write a thesis that provides an overview about the life management process by describing its economic benefits along with technical diagnostics, which help to identify incipient defects at their early stages that may arise during the operation of power oil transformers. The main aim of this thesis is to describe and prove the importance of the life management process itself and the need to analyse transformer parameters by diagnostic methods to detect possible defects. The practical part of the thesis focuses on proposing the most suitable diagnostic methods for measuring the selected parameters of the chosen power oil transformer. The selected parameters are then analysed, and the overall condition of the chosen power oil transformer is estimated.

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