Abstract
In this paper an analytical approach for calculation of mechanical strength of oval windings in distribution transformers is presented. The calculation is given for radial forces resulting from interaction of the axial component of leakage flux density and the current in the windings. The analysis is focused on the inner foil winding subjected to radial forces acting inwards where winding could fail either by collapsing or by bending between the supports. The most common failure mode is free buckling where foil conductors (usually outer half of low voltage winding) bulge outwards as well as inwards usually at one specific point along the circumference.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
