Accession Number : ADA407661


Title :   Direct Calculation of Short Circuit Reactance, Winding Strength, and Inherent Forms of Output Transformers (Direkte Berechung der Kurzschlussreaktanzen, Wicklungskraefte und Eigenformen von Leistungstransformatoren)


Descriptive Note : Dissertation


Corporate Author : UNIVERSITAET DER BUNDESWEHR HAMBURG (GERMANY F R) FACHBEREICH ELEKTROTECHNIK


Personal Author(s) : Bollman, Christian


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a407661.pdf


Report Date : Jan 2001


Pagination or Media Count : 164


Abstract : The dissertation seeks to employ boundary-element methods (regarding finite elements and differences) in determining how detailed the modeling of an output transformer must be in order to deliver sufficiently precise results. A two-dimensional transformer model, from which the unwinding of the transformer shall take place, is suitable for the calculation of magnetic fields, and yields valuable clarifications. The mathematical components to the study are described in terms of boundary- value tasks as stipulated within the boundary-element method, thereby making discrete the vector potential on the boundaries. The final chapter concerns the frequency and inherent forms of output transformers with and without the interpolation of inductive coupling.


Descriptors :   *COUPLING CIRCUITS , *SHORT CIRCUITS , *COMPUTATIONS , *FINITE ELEMENT ANALYSIS , *OUTPUT , STRENGTH(GENERAL) , VECTOR ANALYSIS , GERMANY , MATHEMATICS , GERMAN LANGUAGE , INDUCTANCE , TRANSFORMERS , WINDING , PRECISION , INTERPOLATION , BOUNDARIES , TWO DIMENSIONAL , REACTANCE , MAGNETIC FIELDS


Subject Categories : Electrical and Electronic Equipment
      Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE