Authors: J Č Mikulović M S Savić
Publish Date: 2006/03/14
Volume: 89, Issue: 4, Pages: 293-300
Abstract
This paper presents a new numerical method for transient calculation in transformer winding due to step excitation The transformer winding is represented by a lumped parameter network The differential equations for the equivalent network are formulated using statespace approach A numerical solution of the statespace equations is applied in order to obtain a step response of the transformer winding The method can be used for an accurate representation of transformer winding by a transfer function A new method for determination of winding high frequency parameters based on transformer response to the voltage surge tests is developed The computed and measured voltage distribution when voltage surge is applied to the three phase 30 kVA power transformer is compared
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