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From: Kiril on 8 Jan 2010 16:02
I’m trying to use equivalent circuit of dry type transformer to determinate cold temperature of the winding. In Simulink it’s very easy to simulate no-load or sort circuit method to determined parameters of transformer. But according to IEEE standart I have to estimate this parameters ( R1, R2, Rm, X1, X2, Xm) in time for example every minute to find temperature of the windings. The problem is that in Simulink transformer parameters do not change. So my question is how to simulate temperature in transformer windings, because the windings resistance is function of temperature.
Thank in advance for everyone try to help me !
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