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As mentioned earlier, this paper presents results of a comprehensive study conducted to identify magnitudes of contributors to the inherent difference between sound pressure and sound intensity measurements of transformer noise. From this study, appropriate conditions for accurate indoors measurement of transformer noise, when using the sound intensity method, have been derived. Also, magnitudes of...
The subject of deciding on the most appropriate method of determining the true sound power level of a power transformer has been discussed through the transformer industry for decades. It is the objective of this 2 - Part paper to identify magnitudes of the contributions to the inherent difference in power transformer noise level measurements when using the Sound Pressure method versus when using...
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