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Although several built-in models are currently available in transient tools for transformer representation, users of these tools can develop their own custom-made models. A very common approach when developing new transformer models is to apply the principle of duality. It has been proved that a topologically-correct model of a single-phase transformer when applying duality is the so-called π model...
Ferroresonance is a complex nonlinear phenomenon that may be initiated in many different ways and involves the association of capacitances and non-linear magnetizing inductances. Although ferroresonance has been present in power systems for more than a century, its behavior and characterization still remain widely unknown This work illustrates a proper guideline for transformer modeling starting from...
Ferroresonance is one of the most destructive transient phenomena in power systems. This complex phenomenon involves the association of nonlinear magnetizing inductances and capacitances, and may be initiated in many different ways, which makes its characterization very difficult. This work links EMTP and MATLAB and presents some computer tools that have been developed for assessing ferroresonance...
Nowadays the term ferroresonance is firmly established in the power system engineer's vocabulary as one of the most destructive transient phenomena, which may cause failures in power equipment such transformers, cables, or arresters. Its complex non-linear behavior makes difficult its characterization. This work links EMTP and MATLAB to presents some techniques for the assessment of ferroresonance...
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