Analysis of Transformer Winding considering Transient Effects

This article presents electromagnetic effects on transformer winding. It shows dimension of force causing by short-circuits and how this force is created. In graphs are shown basics dependences for transformer and its dimension (its power) and mechanical forces. In the next is dealing with transient actions at overvoltages. There is showed how can overvoltages be created and how long overvoltages are take time. Third part of article is focused on measurement method. This method is preferred for testing big transformer. In method are described frequency ranges and possible exploitation of this method. Conclusion is proposal for next leading of this issue.