Analysis of very fast transients in layer-type transformer windings

M. Popov, L. Sluis, van der, R. Smeets, J. Lopez Roldan

Research output: Contribution to journalArticleAcademicpeer-review

128 Citations (Scopus)


This paper deals with the measurement, modeling, and simulation of very fast transient overvoltages in layer-type distribution transformer windings. Measurements were performed by applying a step impulse with 50-ns rise time on a single-phase test transformer equipped with measuring points along the winding. Voltages along the transformer windings were computed by applying multiconductor transmission-line theory for transformer layers and turns. Interturn voltage analysis has also been performed. Computations are performed by applying an inductance matrix determined in two different ways; by making use of the inverse capacitance matrix and by making use of the well known Maxwell formulas. The modeling of the transformer and the computations are verified by measurements
Original languageEnglish
Pages (from-to)238-247
Number of pages10
JournalIEEE Transactions on Power Delivery
Issue number1
Publication statusPublished - 2007


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