This results in a mechanical resonation in the transformer which then, in turn, becomes audible.
This effect corresponds to that of 50 Hz power transformers which are well known for their buzzing sound, too.
These are usually encapsulated in order to reduce the mechanical resonation of the coil.
www.prad.deDadurch kommt es zu mechanischen Schwingungen im Tranformator die wiederum zu hören sind.
Dieser Effekt enpricht dem von 50 Hz Netztransformatoren, die ja auch brummen.
Diese werden üblicherweise vergossen, um das mechanische Schwingen der Wicklung zu reduzieren.
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