On Mon, 29 Oct 2012 17:05:25 +0100, "GRe"
<mynamespacedbyd...@xs4all.nl> wrote:But in your numbers, the inductance is increasing as the voltage
>> Could you explain these tests in a little more detail? I'm not sure
>It's due to hysteresis losses of ferromagnetic materials like the lamination
>Take f.e. a mains transformer and measure the current trough the primary,
>1) at mains voltage, f.e. 230Vac
>Calculate Z from Vac/Iac and XL from Sqrt(Z^2 - Rdc^2).
>3) you will find two quite different figures for the inductance.
increases. At higher voltage, the current should be higher, so the
core would be more saturated, so the inductance should decrease, not
increase. I think maybe you need to check your calculations.
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