Technical Possibilities of Reducing the Sound Pressure Level Emitted into the Environment by a Power Transformer

The subject presented in this paper refers to measurements and assessment of
the corrected sound pressure level values (noise) occurring around a medium-power
transformer. The paper presents the values of noise accompanying the operation of
the power object before and after its modernization, which consisted in repeated
core pressing and replacement of the cooling system. The main aim of the research
work was the assessment of the influence of the repair work on the noise level emitted
into the environment.